So I'm trying to implement Spring Framework and Hibernate to my web project.
I got hibernate to work at one point (register user and add it to database), but after some time nothing is working.
INFO : org.springframework.web.context.ContextLoader - Root WebApplicationContext: initialization started
INFO : org.springframework.web.context.support.XmlWebApplicationContext - Refreshing Root WebApplicationContext: startup date [Sat Jul 20 22:45:19 EET 2013]; root of context hierarchy
INFO : org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from ServletContext resource [/WEB-INF/spring/root-context.xml]
INFO : org.springframework.beans.factory.config.PropertyPlaceholderConfigurer - Loading properties file from ServletContext resource [/WEB-INF/jdbc.properties]
INFO : org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory#7b4dab69: defining beans [messageSource,propertyConfigurer,dataSource,sessionFactory,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,transactionManager]; root of factory hierarchy
WARN : org.hibernate.internal.util.xml.DTDEntityResolver - HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
INFO : org.springframework.beans.factory.support.DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory#7b4dab69: defining beans [messageSource,propertyConfigurer,dataSource,sessionFactory,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,transactionManager]; root of factory hierarchy
ERROR: org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring/root-context.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1482)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:608)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at org.hibernate.mapping.Constraint$ColumnComparator.compare(Constraint.java:134)
at org.hibernate.mapping.Constraint$ColumnComparator.compare(Constraint.java:130)
at java.util.TimSort.countRunAndMakeAscending(Unknown Source)
at java.util.TimSort.sort(Unknown Source)
at java.util.TimSort.sort(Unknown Source)
at java.util.Arrays.sort(Unknown Source)
at org.hibernate.mapping.Constraint.generateName(Constraint.java:82)
at org.hibernate.cfg.Configuration.buildUniqueKeyFromColumnNames(Configuration.java:1572)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1395)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1756)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1840)
at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:247)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:373)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:358)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)
... 22 more
and Caused by: java.lang.NullPointerException
root-context.xml
<!-- Root Context: defines shared resources visible to all other web components -->
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages" />
<property name="defaultEncoding" value="UTF-8" />
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="/WEB-INF/jdbc.properties" />
</bean>
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.databaseurl}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.something.*" />
<property name="configLocation" value="classpath:hibernate.cfg.xml" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
hibernate.cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<session-factory>
<!-- Database connection settings -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/imdb</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password"></property>
<!-- JDBC connection pool (use the built-in) -->
<property name="hibernate.connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Echo all executed SQL to stdout for debugging -->
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<mapping class="springers.Model.Bean.UserAccount" />
<mapping class="springers.Model.Bean.Movie" />
<mapping class="springers.Model.Bean.TvShow" />
<mapping class="springers.Model.Bean.Connector_User_TvShow" />
</session-factory>
data object example:
#Entity
#Table(name = "USERS")
public class UserAccount {
private int user_pk;
private String username;
private String password;
private String e_mail;
private String country;
#Id
#GeneratedValue
#Column(name = "USER_PK")
public int getUser_pk() { return user_pk; }
#Column(name = "USERNAME", nullable = false, length = 12, unique = true)
public String getUsername() { return username; }
#Column(name = "PASSWORD", nullable = false, length = 12)
public String getPassword() { return password; }
#Column(name = "E_MAIL", nullable = false, length = 50, unique = true)
public String getE_mail() { return e_mail; }
#Column(name = "COUNTRY", nullable = false, length = 25)
public String getCountry() { return country; }
public void setUser_pk (int user_pk) { this.user_pk = user_pk; }
public void setUsername(String username) { this.username = username; }
public void setPassword(String password) { this.password = password; }
public void setCountry (String country) { this.country = country; }
public void setE_mail (String e_mail) { this.e_mail = e_mail; }
user tvshow connector bean:
#Entity
#Table(name = "USER_TVSHOW_CONNECTOR",
uniqueConstraints = #UniqueConstraint(columnNames = {"user_fk", "tvShow_fk"}))
public class Connector_User_TvShow {
private int utc_pk;
private boolean toWatch = false;
private boolean favorite = false;
private boolean reminder = false;
private UserAccount user_fk;
private TvShow tvShow_fk;
#Id
#GeneratedValue
#Column(name = "UTC_PK")
public int getUtc_pk() { return utc_pk; }
#Column(name = "TO_WATCH", nullable = false)
public boolean isToWatch() { return toWatch; }
#Column(name = "FAVOURITE", nullable = false)
public boolean isFavorite() { return favorite; }
#Column(name = "REMINDER", nullable = false)
public boolean isReminder() { return reminder; }
#OneToOne(cascade = CascadeType.ALL)
public UserAccount getUser_fk() { return user_fk; }
#OneToOne(cascade = CascadeType.ALL)
public TvShow getTvShow_fk() { return tvShow_fk; }
public void setUtc_pk (int utc_pk) { this.utc_pk = utc_pk; }
public void setToWatch (boolean toWatch) { this.toWatch = toWatch; }
public void setFavorite (boolean favorite) { this.favorite = favorite; }
public void setReminder (boolean reminder) { this.reminder = reminder; }
public void setUser_fk (UserAccount user_fk) { this.user_fk = user_fk; }
public void setTvShow_fk (TvShow tvShow_fk) { this.tvShow_fk = tvShow_fk; }
Add #JoinColumn(name="user_fk") and #JoinColumn(name="tvShow_fk") to your getUser_fk and getTvShow_fk.
I just had the same NullPointerException.
You will get this NPE if there is a typo in the column name of a #UniqueConstraint annotation
The cause of your Exception was the same one:
java.lang.NullPointerException
at org.hibernate.mapping.Constraint$ColumnComparator.compare(Constraint.java:134)
at org.hibernate.mapping.Constraint$ColumnComparator.compare(Constraint.java:130)
at java.util.TimSort.countRunAndMakeAscending(TimSort.java:324)
at java.util.TimSort.sort(TimSort.java:189)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:659)
at org.hibernate.mapping.Constraint.generateName(Constraint.java:82)
at org.hibernate.cfg.Configuration.buildUniqueKeyFromColumnNames(Configuration.java:1572)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1395)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1756)
at ...
There was a bug report for this issue. The ticket has been fixed. If you update to hibernate 4.3 or later, there will be a better exception message.
PS: but in your case it's just because you didn't specify any column name on the join annotation (see the answer of #alex).
Related
In my spring web application I am getting this error on launching my spring application
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager' defined in ServletContext resource [/WEB-INF/spring/data.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring/data.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: Unable to load class declared as <mapping class="reshetyk.alexey.diary.domain.DiaryUser"/> in the configuration:
Also I have this as a second error
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring/data.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: Unable to load class declared as <mapping class="reshetyk.alexey.diary.domain.DiaryUser"/> in the configuration:
The class DiaryUser is defined in the package and have the following properties assuming the getters and setters are well defined
this is the complete code of my entity class for DiaryUser class.java
#Entity
#Table(name = "USERS")
public class DiaryUser implements Serializable {
#Id
#Column(name = "ID_USER")
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
#Column(name = "LOGIN", unique = true, nullable = false)
private String login;
#Column(name = "PASSWORD", nullable = false)
private String password;
public DiaryUser() {
}
public DiaryUser(Integer id) {
this.id = id;
}
public DiaryUser(String login) {
this.login = login;
}
public DiaryUser(Integer id, String login, String password) {
this.id = id;
this.login = login;
this.password = password;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
I have equally defined this in my hibernate.cfg.xml file
<hibernate-configuration>
<session-factory>
<mapping class="reshetyk.alexey.diary.domain.DiaryUser" />
<mapping class="reshetyk.alexey.diary.domain.DiaryCategory" />
<mapping class="reshetyk.alexey.diary.domain.DiaryRecord" />
</session-factory>
</hibernate-configuration>
this is my data.xml file that contains my database definition configuration for hibernate mappings
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages" />
<property name="defaultEncoding" value="UTF-8" />
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties" />
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource"
p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}"
p:username="${jdbc.username}"
p:password="${jdbc.password}" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:hibernate.cfg.xml"/>
<property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration"/>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.connection.charSet">UTF-8</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
I am kind of confused as I dont know why I am getting this error?
Instead of using LocalSessionFactoryBean,try using the AnnotationSessionFactoryBean instead and specify the mapping classes as shown below(check the link:AnnotationSessionFactoryBean)
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="annotatedClasses">
<list>
<value>test.package.Foo</value>
<value>test.package.Bar</value>
</list>
</property>
</bean>
or
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="packagesToScan" value="test.package"/>
</bean>
instead of defining the mappings under hibernate.cfg.xml.
Your sessionFactory details in data.xml file can be modified as below:
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!--<property name="configLocation" value="classpath:hibernate.cfg.xml"/>-->
<property name="annotatedClasses">
<list>
<value>reshetyk.alexey.diary.domain.DiaryUser</value>
<value>reshetyk.alexey.diary.domain.DiaryCategory</value>
<value>reshetyk.alexey.diary.domain.DiaryRecord</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.connection.charSet">UTF-8</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
Please make sure that mapping resource is correctly defined.
I've some error to solve, here is the error:
org.hibernate.LazyInitializationException: could not initialize proxy - no Session
at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:165)
at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:286)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185)
at model.Teacher_$$_jvstd69_0.toString(Teacher_$$_jvstd69_0.java)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getFormattedValue(HtmlBasicRenderer.java:517)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getFormattedValue(HtmlBasicRenderer.java:540)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:357)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:919)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1903)
at org.primefaces.component.column.Column.renderChildren(Column.java:344)
at org.primefaces.component.datatable.DataTableRenderer.encodeCell(DataTableRenderer.java:1019)
at org.primefaces.component.datatable.DataTableRenderer.encodeRow(DataTableRenderer.java:967)
at org.primefaces.component.datatable.DataTableRenderer.encodeRows(DataTableRenderer.java:878)
at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:825)
at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:788)
at org.primefaces.component.datatable.DataTableRenderer.encodeRegularTable(DataTableRenderer.java:281)
at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:243)
at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:85)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:919)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1903)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1899)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1899)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:451)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
it's happen after relation 2 table that i generate from Hibernate tool
for table Student
#Entity
#Table(name = "student", schema = "public")
public class Student implements java.io.Serializable {
private static final long serialVersionUID = 3484556118289412550L;
private int stuId;
private Teacher teacher;
private String stuName;
private Integer stuAge;
public Student() {
}
public Student(int stuId) {
this.stuId = stuId;
}
public Student(int stuId, Teacher teacher, String stuName, Integer stuAge) {
this.stuId = stuId;
this.teacher = teacher;
this.stuName = stuName;
this.stuAge = stuAge;
}
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "stu_id", unique = true, nullable = false)
public int getStuId() {
return this.stuId;
}
public void setStuId(int stuId) {
this.stuId = stuId;
}
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "stu_teachid")
public Teacher getTeacher() {
return this.teacher;
}
public void setTeacher(Teacher teacher) {
this.teacher = teacher;
}
#Column(name = "stu_name", length = 40)
public String getStuName() {
return this.stuName;
}
public void setStuName(String stuName) {
this.stuName = stuName;
}
#Column(name = "stu_age")
public Integer getStuAge() {
return this.stuAge;
}
public void setStuAge(Integer stuAge) {
this.stuAge = stuAge;
}
}
Teacher
#Entity
#Table(name = "teacher", schema = "public")
public class Teacher implements java.io.Serializable {
private static final long serialVersionUID = 3863374948774698083L;
private int teachId;
private String teachName;
private Set<Student> students = new HashSet<Student>(0);
public Teacher() {
}
public Teacher(int teachId) {
this.teachId = teachId;
}
public Teacher(int teachId, String teachName, Set<Student> students) {
this.teachId = teachId;
this.teachName = teachName;
this.students = students;
}
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "teach_id", unique = true, nullable = false)
public int getTeachId() {
return this.teachId;
}
public void setTeachId(int teachId) {
this.teachId = teachId;
}
#Column(name = "teach_name", length = 40)
public String getTeachName() {
return this.teachName;
}
public void setTeachName(String teachName) {
this.teachName = teachName;
}
#OneToMany(fetch = FetchType.LAZY, mappedBy = "teacher")
public Set<Student> getStudents() {
return this.students;
}
public void setStudents(Set<Student> students) {
this.students = students;
}
}
My applicationContext.xml
<context:component-scan base-package="controller"></context:component-scan>
<context:component-scan base-package="dao"></context:component-scan>
<context:component-scan base-package="model"></context:component-scan>
<context:component-scan base-package="service"></context:component-scan>
<!-- Enable Spring Annotation Configuration -->
<context:annotation-config />
<context:spring-configured />
<!-- Create Data Source bean -->
<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/university" />
<property name="username" value="postgres" />
<property name="password" value="1234" />
</bean>
<!-- Define SessionFactory bean -->
<bean id="SessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="DataSource" />
<property name="annotatedClasses">
<list>
<value>model.Student</value>
<value>model.Teacher</value>
</list>
</property>
<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.use_sql_comments">true</prop>
<prop key="hibernate.temp.use_jdbc_metadata_defaults">false</prop>
</props>
</property>
</bean>
<!-- Detect #Transactional Annotation -->
<tx:annotation-driven transaction-manager="txManager" />
<!-- Transaction Manager is defined -->
<bean id="txManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="SessionFactory" />
</bean>
How to solve this problem ?
There are three ways to avoid the Lazy Initialization Exception:
Set the lazy property to false in the mapping file.I don’t recommend this approach because it will increment the database load and therefore, it will produce a decrease in performance.
Keep the session open. Don't close the session before you have processed the data. If the session is open during the request you could get the associated graph but you need to be sure that the action takes within the same transaction.
Eagerly fetch the associations. In the HQL query use the keyword "fetch" to retrieve the association. From my point of view this is the best solution to avoid the lazy initialization problem. In HQL, you just need to add the fetch keyword in the from clause to eagerly fetch an association.
Change the mapping of set of students from LAZY to EAGER
I want insert some data in one of my table, and I get next exception:
`java.sql.SQLException: ORA-02289: sequence does not exist`
Let's me to show my code. I have next classes:
#Entity
#Table(name="role")
public class Role implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO, generator="role_seq_gen")
#SequenceGenerator(name="role_seq_gen", sequenceName="ROLE_SEQ")
private Long roleId;
#Column(name="role", unique=true)
private String role;
#ManyToMany(mappedBy = "roles")
private List<Tipster> tipsters;
// + getters and setters
}
#Entity
#Table(name="tipster")
public class Tipster implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.AUTO, generator="tipster_id_seq")
#SequenceGenerator(name="tipster_id_seq", sequenceName="tipster_id_seq")
#Column(name="tipsterId")
private Long tipsterId;
#NotEmpty
#Column(name="username", unique=true)
private String username;
#NotEmpty
#Column(name="email", unique=true)
private String email;
#NotEmpty
#Column(name="password", unique=true)
private String password;
#Column(name="active")
private int active;
#ManyToMany
#JoinTable
private List<Role> roles;
//+ getters and setters
}
This is a part of my application context code:
<context:annotation-config />
<task:annotation-driven />
<tx:annotation-driven transaction-manager="transactionManager" />
<bean class="org.springframework.orm.jpa.JpaTransactionManager"
id="transactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<jpa:repositories base-package="com.gab.gsn.repository" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:#localhost:1521/XE" />
<property name="username" value="gabrieltifui" />
<property name="password" value="123321" />
</bean>
<bean
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
id="emf">
<property name="packagesToScan" value="com.gab.gsn.entity" />
<property name="dataSource" ref="dataSource" />
<property name="jpaProperties">
<props>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.use_sql_comments">true</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">create</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.OracleDialect</prop>
</props>
</property>
<property name="persistenceProvider">
<bean class="org.hibernate.jpa.HibernatePersistenceProvider" />
</property>
</bean>
Now, I try to insert a row in my Role table with this method:
#PostConstruct
public void initDb(){
Role role = new Role();
role.setRole("User");
roleRepository.save(role);
}
When I my app on my Apache Server I get next exception:
Caused by: org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:123)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:89)
at org.hibernate.id.SequenceGenerator.generateHolder(SequenceGenerator.java:122)
at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:115)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:117)
at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:84)
at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:206)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:149)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75)
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1181)
... 57 more
Caused by: java.sql.SQLException: ORA-02289: sequence does not exist
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:113)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:754)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:219)
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:813)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1051)
at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:854)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1156)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3415)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3460)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:80)
... 68 more
It seems like I don't create the ROLE_SEQ sequence, but I know that Hibernate should create it automatically. Who can explain me why I get this exception?
It could be a problem related with your permissions, first execute the next statement select * from all_sequences where sequence_name = 'YOUR_SEQUENCE' ; If the sequence exists you only have to grant the permission to the user that you are using in your application. use grant select on YOUR_SEQUENCE to YOUR_USER; to fix your problem.
Consider this example in which I have created two JPA entities and used Spring Data JPA repositories to perform simple CRUD -
import java.sql.Timestamp;
import javax.persistence.Version;
#MappedSuperclass
public class AbstractValueObject {
#Id
#GeneratedValue
private Long id;
#Version
#Column(name = "time_stamp")
private Timestamp version;
public Long getId() {
return id;
}
#Override
public String toString() {
if (id == null) {
return "";
}
return id.toString();
}
}
#Entity
#Table(name = "demo")
public class Demo extends AbstractValueObject {
private String name;
#OneToMany(cascade = CascadeType.ALL, orphanRemoval = true, mappedBy = "demo")
private List<Owner> owners;
public Demo() {
owners = new ArrayList<>();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<Owner> getOwners() {
return Collections.unmodifiableList(owners);
}
public void addOwner(Owner owner) {
this.owners.add(owner);
owner.setDemo(this);
}
public void addAllOwners(List<Owner> owners) {
this.owners.addAll(owners);
for (Owner owner : owners) {
owner.setDemo(this);
}
}
public void update(Demo demo) {
this.setName(demo.getName());
this.owners.clear();
this.addAllOwners(demo.getOwners());
}
}
#Entity
#Table(name = "owner")
public class Owner extends AbstractValueObject {
private String attribute;
#ManyToOne(cascade = CascadeType.ALL, optional = false)
#JoinColumn(name = "demo_id", nullable = false)
private Demo demo;
public String getAttribute() {
return attribute;
}
public void setAttribute(String attribute) {
this.attribute = attribute;
}
public Demo getDemo() {
return demo;
}
public void setDemo(Demo demo) {
this.demo = demo;
}
}
After that, I have created a JPA repository for the Demo entity, extending from JpaRepository -
import org.springframework.data.jpa.repository.JpaRepository;
public interface DemoRepository extends JpaRepository<Demo, Long> {}
Corresponding service implementation -
import javax.annotation.Resource;
import org.springframework.transaction.annotation.Transactional;
public class DemoServiceImpl implements DemoService {
#Resource
private DemoRepository demoRepository;
#Override
#Transactional
public Demo create(Demo demo) {
return demoRepository.save(demo);
}
#Override
#Transactional
public Demo update(long id, Demo demo) {
Demo dbDemo = demoRepository.findOne(id);
if (dbDemo == null) {
return demo;
}
dbDemo.update(demo);
return dbDemo;
}
#Transactional
public void testRun() {
Owner owner = new Owner();
owner.setAttribute("attribute");
Demo demo = new Demo();
demo.setName("demo");
demo.addOwner(owner);
this.create(demo);
demo.setName("another");
this.update(demo.getId(), demo);
}
}
persistence.xml file -
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
version="2.1">
<persistence-unit name="jpa-optimistic-locking" transaction-type="RESOURCE_LOCAL">
</persistence-unit>
</persistence>
Spring app-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:context="http://www.springframework.org/schema/context" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<context:component-scan base-package="com.keertimaan.example.jpaoptimisticlocking" />
<jpa:repositories base-package="com.keertimaan.example.jpaoptimisticlocking.repository" />
<bean id="demoService" class="com.keertimaan.example.jpaoptimisticlocking.service.DemoServiceImpl" />
<!-- JPA/Database/Transaction Configuration -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="com.mysql.jdbc.Driver" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/test" />
<property name="user" value="root" />
<property name="password" value="admin123" />
<property name="minPoolSize" value="1" />
<property name="maxPoolSize" value="2" />
<property name="acquireIncrement" value="1" />
<property name="maxStatements" value="5" />
<property name="idleConnectionTestPeriod" value="500" />
<property name="maxIdleTime" value="1000" />
<property name="loginTimeout" value="800" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="jpa-optimistic-locking" />
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</property>
<property name="persistenceProvider">
<bean class="org.hibernate.jpa.HibernatePersistenceProvider" />
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">validate</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
Now whenever I try to update an entity like this on Windows 7 -
public class App {
public static void main(String[] args) {
DemoService demoService = (DemoService) SpringHelper.INSTANCE.getBean("demoService");
demoService.testRun();
}
}
I get an exception like this -
Exception in thread "main"
org.springframework.orm.ObjectOptimisticLockingFailureException:
Object of class
[com.keertimaan.example.jpaoptimisticlocking.domain.Demo] with
identifier [4]: optimistic locking failed; nested exception is
org.hibernate.StaleObjectStateException: Row was updated or deleted by
another transaction (or unsaved-value mapping was incorrect) :
[com.keertimaan.example.jpaoptimisticlocking.domain.Demo#4] at
org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:228)
at
org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:155)
at
org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:519)
at
org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:757)
at
org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:726)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:478)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:272)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy31.testRun(Unknown Source) at
com.keertimaan.example.jpaoptimisticlocking.App.main(App.java:9)
Caused by: org.hibernate.StaleObjectStateException: Row was updated or
deleted by another transaction (or unsaved-value mapping was
incorrect) :
[com.keertimaan.example.jpaoptimisticlocking.domain.Demo#4] at
org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:2541)
at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3285)
at
org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:3183)
at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3525)
at
org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:159)
at
org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:463)
at
org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:349)
at
org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:350)
at
org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1222)
at
org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:425)
at
org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at
org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:177)
at
org.hibernate.jpa.internal.TransactionImpl.commit(TransactionImpl.java:77)
at
org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:515)
... 9 more
If I run the same example in Ubuntu, then I get no exception at all and my application completes successfully. Why is that?
I am using Windowsw 7 64-bit edition -
OS Name: Microsoft Windows 7 Enterprise
OS Version: 6.1.7601 Service Pack 1 Build 7601
and my Ubuntu version is 12.04.5 64-bit edition.
JDK used in Windows: jdk7 update 75
JDK used in Ubuntu: jdk7 update 51
MySQL Server version in Windows: 5.6.23-log MySQL Community Server (GPL)
MySQL Server version in Ubuntu: 5.5.41-0ubuntu0.12.04.1 (Ubuntu)
I have a feeling that this is related to the timestamp precision of MySQL 5.6. MySQL 5.6.4 introduced microsecond precision, which will cause a version mismatch, and the locking will fail.
This is not related to your problem directly but in a highly concurrent environment you should not use timestamp as your version as two entity might have the same time! It's better to use a long/int version like below-
#Version
long version;
Also from design perspective please make your super class abstract as well. Can you check if changing these solves your problem?
Apologies as I'm relatively new to Spring. I have the following code...
org.assessme.com.dao.UserDAOImpl.java
#Repository
public class UserDAOImpl implements UserDAO{
#Autowired
private SessionFactory sessionFactory;
#Transactional
public User getById(Long id) {
return (User) sessionFactory.getCurrentSession().load(User.class, id);
}
}
This uses org.assessme.com.dao.UserDAO.java
public interface UserDAO {
public User getById(Long id);
}
When I try to run my program, I get...
ERROR: org.springframework.web.servlet.DispatcherServlet - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAOImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory org.assessme.com.bean.UserDAOImpl.sessionFactory; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:631)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:588)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:645)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:508)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:449)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:133)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1185)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5015)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5302)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1566)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1556)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
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)
My spring.xml is...
<?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:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation=
"http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/db" />
<property name="username" value="username" />
<property name="password" value="password" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="annotatedClasses">
<list>
<value>org.assessme.com.entity.User</value>
</list>
</property>
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="data" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
<prop key="hibernate.current_session_context_class">thread</prop>
<prop key="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<context:component-scan base-package="org.assessme" />
<tx:annotation-driven/>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
Can anyone see what I'm doing incorrectly? I'm not quite sure how to autowire the sessionFactory.
My entity class is as follows...
org.assessme.com.entity.User.java
#Entity
#Table(name = "users")
public class User {
#Column(name = "firstName")
private String firstName;
#Column(name = "lastName")
private String lastName;
#Column(name = "email")
private String email;
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
#Column(name = "id")
private long id;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
}
Thanks,
I'm using this in springmvc by the way, should this be in servlet-context.xml?
Here is the relevant part of the error message:
NoSuchBeanDefinitionException: No matching bean of type [org.hibernate.SessionFactory]
The problem is AnnotationSessionFactoryBean does not implement the org.hibernate.SessionFactory interface. To get one of those you need to call the buildSessionFactory method.