Java+Spring: SEVERE Servletservice - java

I dont know what is wrong in my listContacts in controller
map.put("contactList", contactService.listContact());
Can somebody help me?
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/test] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException
at pl.ivmx.contact.controller.ContactController.listContacts(ContactController.java:26)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
package pl.ivmx.contact.controller;
import java.util.Map;
import pl.ivmx.contact.dao.ContactDAO;
import pl.ivmx.contact.form.Contact;
import pl.ivmx.contact.service.ContactService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
#Controller
public class ContactController {
#Autowired
private ContactService contactService;
#RequestMapping("/contact")
public String listContacts(Map<String, Object> map) {
map.put("contact", new Contact());
map.put("contactList", contactService.listContact());
return "/contact";
}
#RequestMapping(value = "/add", method = RequestMethod.POST)
public String addContact(#ModelAttribute("contact") Contact contact,
BindingResult result) {
contactService.addContact(contact);
return "redirect:/contact";
}
#RequestMapping("/delete/{contactId}")
public String deleteContact(#PathVariable("contactId") Integer contactId) {
contactService.removeContact(contactId);
return "redirect:/contact";
}
}
package pl.ivmx.contact.dao;
import java.util.List;
import pl.ivmx.contact.form.Contact;
public interface ContactDAO {
public void addContact(Contact contact);
public List<Contact> listContact();
public void removeContact(Integer id);
}
package pl.ivmx.contact.dao;
import java.util.List;
import pl.ivmx.contact.form.Contact;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
#Repository
public class ContactDAOImpl implements ContactDAO {
#Autowired
private SessionFactory sessionFactory;
public void addContact(Contact contact) {
sessionFactory.getCurrentSession().save(contact);
}
public List<Contact> listContact() {
return sessionFactory.getCurrentSession().createQuery("from Contact").list();
}
public void removeContact(Integer id) {
Contact contact = (Contact) sessionFactory.getCurrentSession().load(
Contact.class, id);
if (null != contact) {
sessionFactory.getCurrentSession().delete(contact);
}
}
}
package pl.ivmx.contact.service;
import java.util.List;
import pl.ivmx.contact.form.Contact;
public interface ContactService {
public void addContact(Contact contact);
public List<Contact> listContact();
public void removeContact(Integer id);
}
package pl.ivmx.contact.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import pl.ivmx.contact.dao.ContactDAO;
import pl.ivmx.contact.form.Contact;
#Service
public class ContactServiceImpl implements ContactService {
#Autowired
private ContactDAO contactDAO;
#Transactional
public void addContact(Contact contact) {
contactDAO.addContact(contact);
}
#Transactional
public List<Contact> listContact() {
return contactDAO.listContact();
}
#Transactional
public void removeContact(Integer id) {
contactDAO.removeContact(id);
}
}
package pl.ivmx.contact.form;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name="CONTACTS")
public class Contact {
#Id
#Column(name="ID")
#GeneratedValue
private Integer id;
#Column(name="FIRSTNAME")
private String firstname;
#Column(name="LASTNAME")
private String lastname;
#Column(name="EMAIL")
private String email;
#Column(name="TELEPHONE")
private String telephone;
public String getEmail() {
return email;
}
public String getTelephone() {
return telephone;
}
public void setEmail(String email) {
this.email = email;
}
public void setTelephone(String telephone) {
this.telephone = telephone;
}
public String getFirstname() {
return firstname;
}
public String getLastname() {
return lastname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/pages/index.jsp</welcome-file>
</welcome-file-list>
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:security="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.0.xsd">
<context:annotation-config />
<context:component-scan base-package="pl.ivmx.contact" />
<!-- <bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="messages_en.properties" />
<property name="defaultEncoding" value="UTF-8" />
</bean> -->
<import resource="commonContext.xml" />
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean id="userTestDao" class="pl.ivmx.dao.impl.UserTestDaoImpl">
<!-- <property name="dataSource" ref="dataSource" /> -->
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean" >
<!-- class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> -->
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="META-INF/hibernate.cfg.xml" />
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<!-- <property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
<property name="annotatedClasses">
<list>
<value>pl.ivmx.model.UserTest</value>
</list>
</property> -->
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
dispatcher-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" /> -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<bean id="urlMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="urlMap">
<map>
<entry key="/index.do"> <ref bean="index" /></entry>
<entry key="/registration.do"> <ref bean="registration" /></entry>
<entry key="/usertestlist.do"> <ref bean="usertest" /></entry>
<entry key="/contact.do"> <ref bean="contact" /></entry>
</map>
</property>
</bean>
<bean id="index" class="pl.ivmx.web.IndexController"/>
<bean id="registrationValidator" class="pl.ivmx.validation.RegistrationValidator" />
<bean id="registration" class="pl.ivmx.web.RegistrationFormController" >
<property name="commandName"><value>userTest</value></property>
<property name="commandClass"><value>pl.ivmx.model.UserTest</value></property>
<property name="validator"><ref local="registrationValidator"/></property>
<property name="formView"><value>registration</value></property>
<property name="successView"><value>registrationsuccess</value></property>
<property name="userTestDao"><ref bean="userTestDao"/></property>
</bean>
<bean id="usertest" class="pl.ivmx.web.UserTestController">
<property name="userTestDao"><ref bean="userTestDao"/></property>
</bean>
<bean id="contact" class="pl.ivmx.contact.controller.ContactController">
</bean>
<bean id="contactService" class="pl.ivmx.contact.service.ContactServiceImpl">
</bean>
<bean id="contactDAO" class="pl.ivmx.contact.dao.ContactDAOImpl">
</bean>
</beans>

It looks like a NullPointerException thrown in the method here:
#RequestMapping("/contact")
public String listContacts(Map<String, Object> map) {
map.put("contact", new Contact());
map.put("contactList", contactService.listContact());
return "/contact";
}
I would debug and check that contactService has been autowired correctly.
The null pointer is line 26, if that is the line containing contactService.listContact() then contactService is null. If it is the line above then the map is null.
I am not sure but try adding:
<context:component-scan base-package="pl.ivmx.contact" />
to the dispatcher-servlet.xml as well, it could be that the annotation isnt getting processed

you are returning "/contact" there in the method as a view to be shown:
#RequestMapping("/contact")
public String listContacts(Map<String, Object> map) {
map.put("contact", new Contact());
map.put("contactList", contactService.listContact());
return "/contact"; // <---- here!
}
This means that you should have a view named /contact defined somewhere, but I don't see it. You need to have a view that corresponds with the value you're defining.
You probably want to return a value like "contact" instead of "/contact" and then have contact.jsp in the webapp/WEB-INF/views folder (assuming you use maven standard directory layout).

I don't see anything obvious ... could sessionFactory be null? Should be easy to find, tho. Step through the code in the debugger.

I think you are missing to add the contactService bean to your applicationContext.xml
try adding the below to tags
<bean id="contactService" class="pl.ivmx.contact.service.ContactServiceImpl">
<property name="contactDAO" ref="contactDAO" />
</bean>
<bean id="contactDAO" class="pl.ivmx.contact.dao.ContactDAOImpl" />

Related

Exception:No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here

I am getting error after deploying the application. I have checked similar questions but still could not resolve the error. I have used #Transactional for the service class as well as
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:656)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause
org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here
org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63)
org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:687)
com.utd.dao.CustomerDaoImpl.getAllCustomer(CustomerDaoImpl.java:22)
com.utd.service.CustomerManagerImpl.getAllCustomer(CustomerManagerImpl.java:23)
com.utd.controller.CustomerController.listCustomers(CustomerController.java:22)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
I have following project files:
The controller:
#Controller
public class CustomerController {
#Autowired
private CustomerManager customerManager;
#RequestMapping(value="/", method= RequestMethod.GET)
public String listCustomers(ModelMap map){
map.addAttribute("customer", new Customer());
map.addAttribute("customerList", customerManager.getAllCustomer());
return "CustomerList";
}
#RequestMapping(value = "/add", method = RequestMethod.POST)
public String addCustomer(#ModelAttribute(value="customer") Customer customer, BindingResult result)
{
customerManager.addCustomer(customer);
return "redirect:/";
}
#RequestMapping("/delete/{customerId}")
public String deleteEmplyee(#PathVariable("customerId") Integer customerId)
{
customerManager.deleteCustomer(customerId);
return "redirect:/";
}
public void setCustomerManager(CustomerManager customerManager) {
this.customerManager = customerManager;
}
}
The dao class
public class CustomerDaoImpl implements CustomerDao{
#Autowired
private SessionFactory sessionFactory;
public void addCustomer(Customer customer) {
this.sessionFactory.getCurrentSession().save(customer);
}
#SuppressWarnings("unchecked")
public List<Customer> getAllCustomer() {
return this.sessionFactory.getCurrentSession().createQuery("from Customer").list();
}
public void deleteCustomer(Integer customerId) {
Customer customer = (Customer) sessionFactory.getCurrentSession().load(Customer.class, customerId);
if (null != customer) {
this.sessionFactory.getCurrentSession().delete(customer);
}
}
}
The Dto:
#Entity
#Table(name="Customer")
public class Customer {
#Id
#Column(name="ID")
#GeneratedValue
private int id;
#Column(name="NAME")
private String name;
#Column(name="CONTACT")
private String contact;
#Column(name="EMAIL")
private String email;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getContact() {
return contact;
}
public void setContact(String contact) {
this.contact = contact;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
customer-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/util/ http://www.springframework.org/schema/util/spring-util.xsd">
<context:annotation-config />
<context:component-scan base-package="com.utd.controller" />
<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView"></property>
<property name="prefix" value="/WEB-INF/view/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages"></property>
<property name="defaultEncoding" value="UTF-8"></property>
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties"></bean>
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}" p:username="${jdbc.username}"
p:password="${jdbc.password}"></bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<bean id="customerDao" class="com.utd.dao.CustomerDaoImpl"></bean>
<bean id="customerManager" class="com.utd.service.CustomerManagerImpl"></bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
</beans>
dispatcher-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.utd" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
Manager class Implementation
package com.utd.service;
import com.utd.dao.CustomerDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.utd.dto.Customer;
import javax.transaction.Transactional;
import java.util.List;
#Service
public class CustomerManagerImpl implements CustomerManager {
#Autowired
private CustomerDao customerDao;
#Transactional
public void addCustomer(Customer customer) {
customerDao.addCustomer(customer);
}
#Transactional
public List<Customer> getAllCustomer() {
return customerDao.getAllCustomer();
}
#Transactional
public void deleteCustomer(Integer customerId) {
customerDao.deleteCustomer(customerId);
}
public void setCustomerDao(CustomerDao customerDao) {
this.customerDao = customerDao;
}
}
I would like to know how to resolve the error.

No qualifying bean of type [javax.persistence.EntityManagerFactory] is defined"}}

I'm having problem with my web-app, cannot deploy the project to WildFly.
Problem:
Caused by: java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bookedRoomDao': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.persistence.EntityManagerFactory] is defined
at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:222)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:87)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.start(UndertowDeploymentService.java:72)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
... 3 more
Here is my application-context.xml :
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basenames">
<list>
<value>text_resources</value>
</list>
</property>
</bean>
<bean name="exceptionResolver" class="com.booking.common.HotelException" autowire="byName">
<property name="exceptionMappings">
<props>
<prop key="javax.servlet.jsp.JspException">exception</prop>
<prop key="javax.servlet.ServletException">exception</prop>
<prop key="java.lang.Exception">exception</prop>
<prop key="java.lang.Throwable">exception</prop>
<prop key="java.lang.RuntimeException">exception</prop>
<prop key="org.springframework.web.bind.ServletRequestBindingException">exception</prop>
</props>
</property>
</bean>
<bean id="mailSession" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="java:jboss/mail/Default"/>
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.SimpleDriverDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/booking-war"/>
<property name="username" value="root"/>
<property name="password" value="root"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" lazy-init="true" autowire="default">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.booking.member.vo" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
</props>
</property>
</bean>
<bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="txManager"/>
<context:component-scan base-package="com.booking.dao" />
<context:component-scan base-package="com.booking.member" />
<context:component-scan base-package="com.booking.service" />
</beans>
UserDaoImpl.java
package com.booking.dao.impl;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import com.booking.dao.GenericDao;
import com.booking.dao.UserDao;
import com.booking.member.vo.AuthenticateUser;
#Repository("userDao")
public class UserDaoImpl implements UserDao{
#Autowired
GenericDao<AuthenticateUser,Long> genericDao;
#PersistenceContext
EntityManager entityManager;
#Override
public List<AuthenticateUser> userByName(String username) {
String queryStr = "SELECT u FROM AuthenticateUser u WHERE u.username= ? ";
return entityManager.createQuery(queryStr)
.setParameter(1,username).getResultList();
}
public AuthenticateUser create(AuthenticateUser t) {
return genericDao.create(t);
}
public AuthenticateUser read(Long id, Class<AuthenticateUser> c) {
return genericDao.read(id, c);
}
public AuthenticateUser update(AuthenticateUser t) {
return genericDao.update(t);
}
public void delete(AuthenticateUser t) {
genericDao.delete(t);
}
public List<AuthenticateUser> getAll(Class<AuthenticateUser> c) {
return genericDao.getAll(c);
}
}
GenericDaoImpl.java :
package com.booking.dao.impl;
import java.io.Serializable;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.hibernate.Session;
import org.hibernate.criterion.Example;
import org.hibernate.ejb.HibernateEntityManager;
import org.springframework.stereotype.Repository;
import com.booking.dao.GenericDao;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
#Repository("genericDao")
public class GenericDaoImpl<T,PK extends Serializable> implements GenericDao<T, PK> {
protected Class<T> entityClass;
#PersistenceContext
protected EntityManager entityManager;
#Override
public T create(T t) {
this.entityManager.persist(t);
return t;
}
#Override
public T read(PK id,Class<T> c) {
return (T)this.entityManager.find(c, id);
}
#Override
public T update(T t) {
return this.entityManager.merge(t);
}
#Override
public void delete(T t) {
t = this.entityManager.merge(t);
this.entityManager.remove(t);
}
#Override
public List<T> getAll(Class<T> c){
return this.entityManager.createQuery("SELECT o FROM "+ c.getName() +" o").getResultList();
}
#Override
public List<T> getByFilter(T filter){
Session session = ((HibernateEntityManager)entityManager.unwrap(HibernateEntityManager.class)).getSession();
return session.createCriteria(filter.getClass()).add(Example.create(filter)).list();
}
}
BookedRoomDaoImpl.java :
package com.booking.dao.impl;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import com.booking.common.CommonUtils;
import com.booking.dao.BookedRoomDao;
import com.booking.dao.GenericDao;
import com.booking.member.vo.BookedRoom;
import com.booking.member.vo.Booking;
import com.booking.member.vo.TimeRange;
import org.hibernate.criterion.Restrictions;
#Repository("bookedRoomDao")
public class BookedRoomDaoImpl implements BookedRoomDao{
#PersistenceContext
EntityManager entityManager;
#Autowired
GenericDao<TimeRange,Long> timeRangeDao;
#Override
public List<BookedRoom> getBookedRooms(long id,String date){
List<BookedRoom> list = new ArrayList<BookedRoom>();
List<TimeRange> timeRanges = timeRangeDao.getAll(TimeRange.class);
for(TimeRange timeRange:timeRanges){
BookedRoom bookedRoom = new BookedRoom();
Booking booking = null;
try{
booking = (Booking)entityManager.createNativeQuery("select * from Booking b where b.time_range = ?1 and b.room = ?2 and date_format(date_booked,'%Y-%m-%d') = ?3",Booking.class)
.setParameter(1,timeRange.getId())
.setParameter(2,id)
.setParameter(3,date)
.getSingleResult();
}catch (NoResultException e) {
}
if(booking!=null){
bookedRoom.setBookingId(booking.getBookingId());
bookedRoom.setDateBooked(booking.getDateBooked());
bookedRoom.setRoomName(booking.getRoom().getRoomName());
bookedRoom.setUserName(booking.getUserid().getUsername());
if(booking.getUserid().getId()==CommonUtils.getCurrentUserProfile().getUserId()){
bookedRoom.setOwner(true);
}
}
bookedRoom.setFromTime(timeRange.getFromTime());
bookedRoom.setToTime(timeRange.getToTime());
bookedRoom.setTrId(timeRange.getId());
list.add(bookedRoom);
}
return list;
}
#Override
public void deleteBooking(long bookingId,long userId){
entityManager.createNativeQuery("delete from booking where booking_id=?1 and userid=?2")
.setParameter(1, bookingId)
.setParameter(2,userId)
.executeUpdate();
}
#Override
public List getBookingByRoomId(long roomId){
return entityManager.createNativeQuery("select * from booking where room = ?1",Booking.class)
.setParameter(1, roomId)
.getResultList();
}
}
And hibernate.cfg.xml :
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="persistenceUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<validation-mode>NONE</validation-mode>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
<!--value='create' to build a new database on each run; value='update' to modify an existing database; value='create-drop' means the same as 'create' but also drops tables when Hibernate closes; value='validate' makes no changes to the database-->
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.ejb.naming_strategy" value="org.hibernate.cfg.ImprovedNamingStrategy"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.ejb.cfgfile" value="/resources/hibernate/hibernate.cfg.xml"/>
</properties>
</persistence-unit>
</persistence>
You need to add entityManagerFactory like this:
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
</property>
<property name="jpaProperties" ref="hibernatePropertiesBean"/>
<property name="packagesToScan">
<list>
<value>your.packages</value>
</list>
</property>
</bean>

Estado HTTP 500 - Request processing failed; nested exception is org.hibernate.HibernateException: createQuery is not valid without active transaction

Can anyone explain this error? I get into this line of code.
List empresas = session.createQuery("from Empresas").list(); of EmpresasDAOImp.java
jul 10, 2014 1:17:32 AM org.apache.catalina.core.StandardWrapperValve invoke
Grave: El Servlet.service() para el servlet [springapp] en el contexto con ruta [/springapp] lanzó la excepción [Request processing failed; nested exception is org.hibernate.HibernateException: createQuery is not valid without active transaction] con causa raíz
org.hibernate.HibernateException: createQuery is not valid without active transaction
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:348)
at com.sun.proxy.$Proxy19.createQuery(Unknown Source)
at com.altobri.conta.dao.EmpresasDAOImpl.listEmpresas(EmpresasDAOImpl.java:50)
at com.altobri.conta.service.EmpresasServiceImpl.listEmpresas(EmpresasServiceImpl.java:48)
at com.altobri.conta.controller.empresaListaController.list(empresaListaController.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>Spring3MVC</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>springapp</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springapp</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
springapp-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="com.companyname.springapp.web" />
<context:component-scan base-package="com.springHibernate" />
<context:component-scan base-package="com.altobri.conta.*" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/empresas" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="annotatedClasses">
<list>
<value>com.altobri.conta.model.Empresas</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop
key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.current_session_context_class">thread</prop>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory">
</bean>
</beans>
empresaListaController.java
package com.altobri.conta.controller;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.servlet.ModelAndView;
import com.altobri.conta.model.Empresas;
import com.altobri.conta.service.*;
#Controller
public class empresaListaController {
#Autowired
private EmpresasService empresasService;
protected final Logger logger = Logger.getLogger(getClass());
#RequestMapping("/empresaLista")
// #RequestMapping(method = RequestMethod.GET)
public String list(Model model) {
List<Empresas> empresas = empresasService.listEmpresas();
model.addAttribute("empresalist", empresas);
return "empresaLista";
}
}
EmpresasDAO
package com.altobri.conta.dao;
import com.altobri.conta.model.Empresas;
import java.util.List;
public interface EmpresasDAO {
void persistEmpresas(Empresas empresas);
Empresas findEmpresasById(int clave);
void updateEmpresas(Empresas empresas);
void deleteEmpresas(Empresas empresas);
public List<Empresas> listEmpresas();
}
EmpresasDAOImpl.java
package com.altobri.conta.dao;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import com.altobri.conta.model.Empresas;
#Repository("empresasDAO")
public class EmpresasDAOImpl implements EmpresasDAO {
#Autowired
public SessionFactory sessionFactory;
#Override
#Transactional
public void persistEmpresas(Empresas empresas) {
sessionFactory.getCurrentSession().persist(empresas);
}
#Override
#Transactional
public Empresas findEmpresasById(int clave) {
return (Empresas) sessionFactory.getCurrentSession().get(
Empresas.class, clave);
}
#Override
#Transactional
public void updateEmpresas(Empresas empresas) {
sessionFactory.getCurrentSession().update(empresas);
}
#Override
#Transactional
public void deleteEmpresas(Empresas empresas) {
sessionFactory.getCurrentSession().delete(empresas);
}
#Override
#Transactional
public List<Empresas> listEmpresas() {
Session session = sessionFactory.getCurrentSession();
List empresas = session.createQuery("from Empresas").list();
// TODO Auto-generated method stub
return empresas;
}
}
Empresas.java
package com.altobri.conta.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "EMPRESAS")
public class Empresas {
#Id
#Column(name = "CLAVE", nullable = false)
private int clave;
#Column(name = "NOMBRE", nullable = false)
private String nombre;
public Empresas() {
}
public int getClave() {
return clave;
}
public void setClave(int clave) {
this.clave = clave;
}
public String getNombre() {
return nombre;
}
public void setNombre(String nombre) {
this.nombre = nombre;
}
}
EmpresasService.java
package com.altobri.conta.service;
import java.util.List;
import com.altobri.conta.model.Empresas;
public interface EmpresasService {
void persistEmpresas(Empresas empresas);
Empresas findEmpresasById(int clave);
void updateEmpresas(Empresas empresas);
void deleteEmpresas(Empresas empresas);
public List<Empresas> listEmpresas();
}
EmpresasServiceImpl.java
package com.altobri.conta.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.altobri.conta.dao.EmpresasDAO;
import com.altobri.conta.model.Empresas;
#Service("empresasService")
public class EmpresasServiceImpl implements EmpresasService{
#Autowired
EmpresasDAO empresasDAO;
#Override
#Transactional
public void persistEmpresas(Empresas empresas) {
empresasDAO.persistEmpresas(empresas);
}
#Override
#Transactional
public void updateEmpresas(Empresas empresas) {
empresasDAO.updateEmpresas(empresas);
}
#Override
#Transactional
public Empresas findEmpresasById(int clave) {
return empresasDAO.findEmpresasById(clave);
}
#Override
#Transactional
public void deleteEmpresas(Empresas empresas) {
empresasDAO.deleteEmpresas(empresas);
}
#Override
#Transactional
public List<Empresas> listEmpresas() {
// TODO Auto-generated method stub
return empresasDAO.listEmpresas();
}
}
This
#Override
public List<Empresas> listEmpresas() {
// TODO Auto-generated method stub
return empresasDAO.listEmpresas();
}
is not annotated with #Transactional. Down that method stack, you try to invoke a method that requires you to be inside a transaction.
#Override
public List<Empresas> listEmpresas() {
Session session = sessionFactory.getCurrentSession();
List empresas = session.createQuery("from Empresas").list(); // needs to be called within a Transaction
return empresas;
}
Also, you are missing transaction annotation configuration
<tx:annotation-driven />
(Don't forget to add the appropriate tx namespace declarations.)

java persistence works with reading from database,fails to insert / update

hi guys i m new to Hibernate and JPA.
This is my VO class.
Product.java
package com.sample.myproduct.valueobject;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import com.sample.myproduct.constants.MyproductConstants;
#Entity
#Table(name = "product")
#NamedQuery(
name=MyproductConstants.PRODUCT_NAMED_QUERY,
query=MyproductConstants.SELECT_QUERY_PRODUCT
)
public class Product {
#Id
#Column(name="Product_id")
int productId;
#Column(name="Name")
String name;
#Column(name="Desc")
String desc;
#Column(name="Rating")
int rating;
#Column(name="stock")
int stock;
public int getProductId() {
return productId;
}
public void setProductId(int productId) {
this.productId = productId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
public int getRating() {
return rating;
}
public void setRating(int rating) {
this.rating = rating;
}
public int getStock() {
return stock;
}
public void setStock(int stock) {
this.stock = stock;
}
}
Impl Class
package com.sample.myproduct.servicedao;
import java.util.List;
import java.util.Random;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.springframework.dao.DataAccessException;
import org.springframework.transaction.annotation.Transactional;
import com.sample.myproduct.constants.MyproductConstants;
import com.sample.myproduct.valueobject.Product;
#Transactional
public class ProductDAOImpl implements ProductDAO {
#PersistenceContext
private EntityManager entityManagerFactory;
public EntityManager getEntityManagerFactory() {
return entityManagerFactory;
}
public void setEntityManagerFactory(EntityManager entityManagerFactory) {
this.entityManagerFactory = entityManagerFactory;
}
public void save(Product product){
entityManagerFactory.persist(product);
}
public Product getProductById(int id) throws DataAccessException{
return entityManagerFactory.find(Product.class,id);
}
}
}
persistance.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="JpaPersistenceUnit"
transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.sample.myproduct.servicedao.ProductDAOImpl</class>
</persistence-unit>
</persistence>
servlet-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<!-- DispatcherServlet Context: defines this servlet's request-processing
infrastructure -->
<!-- Enables the Spring MVC #Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving
up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by #Controllers to .jsp resources
in the /WEB-INF/views directory -->
<beans:bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<context:component-scan base-package="com.sample.myproduct" />
<beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close" p:driverClassName="com.mysql.jdbc.Driver"
p:url="jdbc:mysql://localhost/testdb" p:username="root" p:password="" />
<beans:bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<beans:property name="dataSource" ref="dataSource" />
<beans:property name="packagesToScan" value="com.sample.myproduct" />
<beans:property name="jpaVendorAdapter">
<beans:bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</beans:property>
<beans:property name="jpaProperties">
<beans:props>
<beans:prop key="hibernate.hbm2ddl.auto">update</beans:prop>
<beans:prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</beans:prop>
<beans:prop key="hibernate.show_sql">true</beans:prop>
</beans:props>
</beans:property>
<beans:property name="persistenceUnitName" value="entityManager" />
</beans:bean>
<beans:bean class="org.springframework.orm.jpa.JpaTransactionManager"
id="transactionManager">
<beans:property name="entityManagerFactory" ref="entityManagerFactory" />
</beans:bean>
<tx:annotation-driven mode="aspectj"
transaction-manager="transactionManager" />
<context:spring-configured />
<context:annotation-config />
<beans:bean id="productService"
class="com.sample.myproduct.servicebo.ProductService">
</beans:bean>
<beans:bean id="productDAO" class="com.sample.myproduct.servicedao.ProductDAOImpl"></beans:bean>
</beans:beans>
I am able to read data from db but not able to insert data..its not giving any exception.when i added entityManager.flush() after persist function;.
its giving exception as no transaction is in progress
I am not able to find solution for this..
When using JpaTransactionManager, you should specify the dialect as well as below.
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>
<bean id="transactionManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
<property name="jpaDialect" ref="jpaDialect"/>
</bean>
Update:
No transaction is required to read data from database but active transaction is required to write data to database.
If you don't configure the transactionManager correctly, #Transaction annotation will be ignored silently and all your operation will run as if no transaction is available; therefore, your write operation will fail.

Getting java.lang.NullPointerException while getSession().save(entity);

I want to add object data and want to save in DB table, everything working fine but it gives me an error :
java.lang.NullPointerException
on line getSession().save(entity);
I have called this method in code :
#Service
public class AddCategoryProcessor implements ICommandProcessor<AddCategory> {
#Autowired
private IPatronCategoryRepository patronCategoryRepository = new PatronCategoryRepository();
#Override
#Transactional(propagation = Propagation.REQUIRED)
public void Process(AddCategory command){
PatronCategory entity = new PatronCategory();
entity.setCategoryName(command.getCategoryName());
try
{
patronCategoryRepository.save(entity);
}catch (Exception e){
e.printStackTrace();
}
}
}
following is my xml file :
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="org.postgresql.Driver"/>
<property name="url" value="jdbc:postgresql://localhost:5432/abc"/>
<property name="username" value="postgres"/>
<property name="password" value="pwd"/>
<property name="validationQuery" value="SELECT 1"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="packagesToScan" value="com.ngl.domain"/>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.generate_statistics">true</prop>
</props>
</property>
</bean>
<!-- Transaction Manager -->
<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="txManager" />
Here is a getSession() method :
#Override
public Session getSession() {
return getSessionFactory().getCurrentSession();
}
Here is a sessionFactory declaration :
protected SessionFactory sessionFactory;
Any guesses why it's NULLPOINTEREXCEPTION ??
UPDATE :
java.lang.NullPointerException
at com.ngl.commandprocessors.patroncategoryprocessor.AddCategoryProcessor.Process(AddCategoryProcessor.java:32)
at com.ngl.commandprocessors.patroncategoryprocessor.AddCategoryProcessor.Process(AddCategoryProcessor.java:16)
at com.ngl.controllerapis.BaseApiController.ProcessRequest(BaseApiController.java:29)
at com.ngl.controllerapis.PatronCategoryController.addCategory(PatronCategoryController.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:822)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2441)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2430)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
and xml for transaction manager
<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="txManager" />
in repository
#Autowired
protected SessionFactory sessionFactory;
Your config is a bit incomplete. You should delegate session management completely to Spring
Add in you spring xml file:
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
Then, in your PatronCategoryRepository class, extend HibernateDaoSupport and add this constructor:
public class PatronCategoryRepository extends HibernateDaoSupport implements IPatronCategoryRepository{
#Autowired
public PatronCategoryRepository(HibernateTemplate hibernateTemplate) {
super();
super.setHibernateTemplate(hibernateTemplate);
}
[...]
}
In AddCategoryProcessor, leave the definition of the repository like this:
#Autowired
private IPatronCategoryRepository patronCategoryRepository;
And finally your method:
#Override
#Transactional(propagation = Propagation.REQUIRED)
public void Process(AddCategory command){
PatronCategory entity = new PatronCategory();
entity.setCategoryName(command.getCategoryName());
try
{
getHibernateTemplate.save(entity);
}catch (Exception e){
e.printStackTrace();
}
}
In case you still need to access directy the SessionFactory, the only thing you have to do is inject it into PatronCategoryRepository:
#Repository
public class PatronCategoryRepository implements IPatronCategoryRepository{
#Autowired
protected SessionFactory sessionFactory;
public PatronCategoryRepository() {
}
public PatronCategory save(PatronCategory entity){
return getSession().save(entity);
}
private Session getSession() {
return sessionFactory.getCurrentSession();
}
}
And remember to remove the new clause from AddCategoryProcessor, leaving it like this:
#Autowired
private IPatronCategoryRepository patronCategoryRepository;
Employee.java
package com.javacodegeeks.snippets.enterprise.model;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "Employee1")
public class Employee implements Serializable {
#Id
#Column(name = "ID")
private int id;
#Column(name = "NAME")
private String name;
#Column(name = "AGE")
private int age;
public Employee() {
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public long getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
EmployeeDao.java
package com.javacodegeeks.snippets.enterprise.dao;
import com.javacodegeeks.snippets.enterprise.model.Employee;
public interface EmployeeDAO {
public void saveEmployee(Employee employee);
Employee findEmployeeById(int id);
void updateEmployee(Employee employee);
void deleteEmployee(Employee employee);
}
EmployeeDaoImpl.java
package com.javacodegeeks.snippets.enterprise.dao;
import java.io.Serializable;
import org.hibernate.SessionException;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.orm.hibernate3.HibernateTemplate;
import com.javacodegeeks.snippets.enterprise.model.Employee;
public class EmployeeDAOImpl implements EmployeeDAO {
private HibernateTemplate template;
private SessionFactory sessionFactory;
#Autowired
public void setTemplate(HibernateTemplate template) {
this.template = template;
// template.setSessionFactory(sessionFactory);
}
public void setSessionFactory(SessionFactory sessionFactory) {
new HibernateTemplate(sessionFactory);
}
/*
* public void saveEmployee(Employee employee) {
* sessionFactory.getCurrentSession().save(employee);
*
* }
*/
public Employee findEmployeeById(int id) {
return (Employee) sessionFactory.getCurrentSession().get(
Employee.class, id);
}
public void updateEmployee(Employee employee) {
sessionFactory.getCurrentSession().update(employee);
}
public void deleteEmployee(Employee employee) {
sessionFactory.getCurrentSession().delete(employee);
}
public void saveEmployee(Employee employee) {
sessionFactory.getCurrentSession().persist(employee);
template.saveOrUpdate(employee);
}
}
Application COntext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd">
<context:component-scan base-package="com.javacodegeeks.snippets.enterprise.*" />
<!-- <tx:annotation-driven/> -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/test" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="annotatedClasses">
<list>
<value>com.javacodegeeks.snippets.enterprise.model.Employee</value>
</list>
</property>
<!-- <property name="mappingResources">
<list>
<value>Employee.hbm.xml</value>
</list>
</property> -->
<property name="hibernateProperties">
<props>
<prop
key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!-- <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean> -->
<bean id="template" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean id="d" class="com.javacodegeeks.snippets.enterprise.dao.EmployeeDAOImpl">
<property name="template" ref="template"></property>
</bean>
</beans>
pleas ehelp me :-)

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