This is my project:
#LoginServlet:
package Controller;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import Uti.Connect2DB;
/**
Servlet implementation class LoginServlet
**/
public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try {
PrintWriter out = response.getWriter();
response.setContentType("text/html");
Class.forName("com.mysql.cj.jdbc.Driver");
Connection con = Connect2DB.getConnection();
String n= request.getParameter("txtName");
String p= request.getParameter("txtPassword");
PreparedStatement ps = con.prepareStatement("select username from login where username=? and password=?");
ps.setString(1, n);
ps.setString(2, p);
ResultSet rs = ps.executeQuery();
if(rs.next())
{
RequestDispatcher rd = request.getRequestDispatcher("admin.jsp");
rd.forward(request, response);
}
else
{
out.print("<a href=login.jsp font-size:33pt margin-left:auto margin-right:auto>TRY AGAIN</a>");
}
}catch(ClassNotFoundException e){
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
#web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>Controller.LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/LoginServlet</url-pattern>
</servlet-mapping>
</web-app>
After deploying successfully on heroku, when I login, I got this error message:
HTTP Status 500 – Internal Server Error
Type Exception Report
Message Error instantiating servlet class [Controller.LoginServlet]
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
javax.servlet.ServletException: Error instantiating servlet class [Controller.LoginServlet]
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:750)
Root Cause
java.lang.UnsupportedClassVersionError: Controller/LoginServlet has been compiled by a more recent version of the Java Runtime (class file version 60.0), this version of the Java Runtime only recognizes class file versions up to 52.0 (unable to load class [Controller.LoginServlet])
org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2424)
org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:865)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1334)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:750)
Note The full stack trace of the root cause is available in the server logs.
Im using tomcat version 8.5
p.s: when deploying on heroku, it was successfully deploy but I show some message:
Exception in thread "Thread-0" java.lang.RuntimeException: Failed to delete C:\Users\DABEII~1\AppData\Local\Temp\heroku-deploy13190833225245223655
at com.heroku.sdk.deploy.DeleteDirectoryRunnable.run(DeleteDirectoryRunnable.java:46)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.nio.file.FileSystemException: C:\Users\DABEII~1\AppData\Local\Temp\heroku-deploy13190833225245223655\heroku\app\.heroku-deploy: The process cannot access the file because it is being used by another process
at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:92)
at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108)
at java.base/sun.nio.fs.WindowsFileSystemProvider.implDelete(WindowsFileSystemProvider.java:275)
at java.base/sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:105)
at java.base/java.nio.file.Files.delete(Files.java:1152)
at com.heroku.sdk.deploy.DeleteDirectoryRunnable$1.visitFile(DeleteDirectoryRunnable.java:21)
at com.heroku.sdk.deploy.DeleteDirectoryRunnable$1.visitFile(DeleteDirectoryRunnable.java:16)
at java.base/java.nio.file.Files.walkFileTree(Files.java:2812)
at java.base/java.nio.file.Files.walkFileTree(Files.java:2883)
at com.heroku.sdk.deploy.DeleteDirectoryRunnable.run(DeleteDirectoryRunnable.java:44)
... 1 more
Is this the reason of the error I get or something else?
Thank you guys, Im so new for this.
Related
I looked through the few other questions related to the error but could not find any advice about this. When running a war file in TomEE and triggering a Filter, the following error occurs:
org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [default] in context with path [/dbdelta] threw exception [java.lang.IllegalStateException: Could not find beans for Type=interface ab.cde.fgh.base.fe.login.LoginService and qualifiers:[]] with root cause
java.lang.IllegalStateException: Could not find beans for Type=interface ab.cde.fgh.base.fe.login.LoginService and qualifiers:[]
at org.apache.deltaspike.core.api.provider.BeanProvider.getContextualReference(BeanProvider.java:154)
at org.apache.deltaspike.core.api.provider.BeanProvider.getContextualReference(BeanProvider.java:121)
at org.apache.deltaspike.core.api.provider.BeanProvider.getContextualReference(BeanProvider.java:100)
at ab.cde.fgh.base.fe.login.LoginFilter.getLoginService(LoginFilter.java:107)
at ab.cde.fgh.base.fe.login.LoginFilter.doFilter(LoginFilter.java:68)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at ab.cde.fgh.fe.log.LogFilter.doFilter(LogFilter.java:185)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:615)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:818)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1626)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:750)
The beans should be managed by DeltaSpike. The beans.xml file reads like this:
<?xml version="1.0" encoding="UTF-8"?>
<beans> xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
</beans>
The LoginFilter.class mentioned in the TomEE error is this:
package ab.cde.fgh.base.fe.login;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import org.apache.deltaspike.core.api.provider.BeanProvider;
public class LoginFilter implements Filter {
private List<String> dropUrls = null;
private volatile FilterConfig filterConfig;
private volatile LoginService _delegate;
public LoginFilter() {
}
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
String url = ((HttpServletRequest)servletRequest).getRequestURI();
if (this.isDroppedUrl(url)) {
filterChain.doFilter(servletRequest, servletResponse);
} else {
this.getLoginService().doFilter(servletRequest, servletResponse, filterChain);
}
}
public void init(FilterConfig filterConfig) throws ServletException {
this.dropUrls = new ArrayList();
String dropUrlParam;
for(int i = 0; (dropUrlParam = filterConfig.getInitParameter("dropurl." + i)) != null; ++i) {
this.dropUrls.add(dropUrlParam);
}
this.filterConfig = filterConfig;
}
public void destroy() {
if (this._delegate != null) {
this._delegate.destroy();
}
}
private boolean isDroppedUrl(String url) {
Iterator var2 = this.dropUrls.iterator();
String stopUrl;
do {
if (!var2.hasNext()) {
return false;
}
stopUrl = (String)var2.next();
} while(!url.contains(stopUrl));
return true;
}
private LoginService getLoginService() throws ServletException {
if (this._delegate == null) {
synchronized(this) {
if (this._delegate == null) {
this._delegate = (LoginService)BeanProvider.getContextualReference(LoginService.class, new Annotation[0]);
this._delegate.init(this.filterConfig);
this.filterConfig = null;
}
}
}
return this._delegate;
}
}
The LoginService mentioned is an interface which looks like that:
package ab.cde.fgh.base.fe.login;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public interface LoginService {
void init(FilterConfig var1) throws ServletException;
void doFilter(ServletRequest var1, ServletResponse var2, FilterChain var3) throws IOException, ServletException;
void destroy();
}
The LoginFilter and LoginService are part of an existing codebase and i expect them not to be the source of problem as they work well in other projects. Still given for the sake completeness...
Here is the web.xml, containing the filters:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>myapp</display-name>
<filter>
<filter-name>LogFilter</filter-name>
<filter-class>ab.cde.fgh.base.fe.log.LogFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>LogFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>LoginFilter</filter-name>
<filter-class>ab.cde.fgh.base.fe.login.LoginFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>LoginFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
I already spent several hours on working on this error and i am quite clueless as to what went wrong here. Any advice is appreciated!
Edits for grammar and clarity
It turned out the existing codebase required an implementation of the LoginService interface within the given project. The error was probably due to the fact that no implementation was found for the interface.
These are exceptions I'm facing
java.sql.SQLException: Cannot create PoolableConnectionFactory (Public Key Retrieval is not allowed)
Caused by: java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
Here is context.xml
<Context>
<Resource name="jdbc/project"
auth="Container" type="javax.sql.DataSource"
maxActive="25" maxIdle="5" maxWait="10000"
username="Shubham" password="1234abc"
driverClassName="com.mysql.cj.jdbc.Driver"
url="jdbc:mysql://127.0.0.1:3306/studyeasy_db?useSSL=false"/>
</Context>
This is servlet Demo2.java
package org.studyeasy;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.annotation.Resource;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;
/**
* Servlet implementation class Demo2
*/
#WebServlet("/Demo2")
public class Demo2 extends HttpServlet {
private static final long serialVersionUID = 1L;
#Resource(name="jdbc/project")
private DataSource dataSource;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();
Connection connect = null;
Statement stmt = null;
ResultSet rs = null;
try {
connect = dataSource.getConnection();
String query = "Select * from users";
stmt = connect.createStatement();
rs = stmt.executeQuery(query);
while(rs.next()) {
out.print(rs.getString("email"));
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
java.sql.SQLException: Cannot create PoolableConnectionFactory (Public Key Retrieval is not allowed)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:669)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:544)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:753)
at org.studyeasy.Demo.doGet(Demo.java:41)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:688)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1594)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
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)
Caused by: java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197)
at org.apache.tomcat.dbcp.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:55)
at org.apache.tomcat.dbcp.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:355)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:115)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:665)
... 27 more
I'm beginner please help me!
I'm glad that you joined stack overflow. This error has nothing to do with your Java code. The error code says:
java.sql.SQLException: Cannot create PoolableConnectionFactory (Public Key Retrieval is not allowed)
All you need to do is set up a username and password to connect to your database.
I have the following EJB implementing a simple ActiveMQ message enqueue. The ActiveMQ code itself works just fine. This is being deployed on a TomEE server.
SenderBean class:
package Beans;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
#LocalBean
#Stateless
public class SenderBean {
private ConnectionFactory factory = null;
private Connection connection = null;
private Session session = null;
private Destination destination = null;
private MessageProducer producer = null;
public SenderBean() {
}
public void sendMessage() {
try {
factory = new ActiveMQConnectionFactory(
ActiveMQConnection.DEFAULT_BROKER_URL);
connection = factory.createConnection();
connection.start();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
destination = session.createQueue("SAMPLEQUEUE");
producer = session.createProducer(destination);
TextMessage message = session.createTextMessage();
message.setText("Hello ...This is a sample message..sending from FirstClient");
producer.send(message);
System.out.println("Sent: " + message.getText());
connection.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
}
I also have the following class which tries to use the bean in a servlet. If I include the #EJB annotation, like in the following example, the servlet throws an exception upon receiving post. However, if i remove the annotation and instantiate the bean class with new SenderBean(), everything works as it should. What could be the cause of this?
SenderServlet class:
package Servlets;
import Beans.ReceiverBean;
import Beans.SenderBean;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
#WebServlet(name = "SenderServlet")
public class SenderServlet extends HttpServlet {
#EJB
SenderBean senderBean;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
senderBean.sendMessage();
}
}
The exception being received in the HttpServletResponse after a 500 error:
HTTP Status 500 - Error instantiating servlet class Servlets.SenderServlet</h1><div class="line"></div><p><b>type</b> Exception report</p><p><b>message</b> <u>Error instantiating servlet class Servlets.SenderServlet</u></p><p><b>description</b> <u>The server encountered an internal error that prevented it from fulfilling this request.</u></p><p><b>exception</b></p><pre>javax.servlet.ServletException: Error instantiating servlet class Servlets.SenderServlet
org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:784)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
root cause javax.naming.NameNotFoundException: Name [Servlets.SenderServlet/senderBean] is not bound in this Context. Unable to find [Servlets.SenderServlet].
org.apache.naming.NamingContext.lookup(NamingContext.java:816)
org.apache.naming.NamingContext.lookup(NamingContext.java:173)
org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:784)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
The exploded artifact:
don't you have a classpath clash with activemq or hibernate? are the provided library NOT in WEB-INF/lib?
I created a jsp file register.jsp in which I am getting the details of the user and trying to save it in the database
RegisterServlet.java
package com.controller;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.model.User;
import com.service.RegisterService;
public class RegisterServlet extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String firstName = request.getParameter("firstName");
String middleName = request.getParameter("middleName");
String lastName = request.getParameter("lastName");
String email = request.getParameter("email");
String userId = request.getParameter("userId");
String password = request.getParameter("password");
User user = new User(firstName,middleName,lastName, email,userId, password);
try {
RegisterService registerService = new RegisterService();
boolean result = registerService.register(user);
out.println("<html>");
out.println("<head>");
out.println("<title>Registration Successful</title>");
out.println("</head>");
out.println("<body>");
out.println("<center>");
if(result){
out.println("<h1>Thanks for Registering with us :</h1>");
out.println("To login with new UserId and Password<a href=login.jsp>Click here</a>");
}else{
out.println("<h1>Registration Failed</h1>");
out.println("To try again<a href=register.jsp>Click here</a>");
}
out.println("</center>");
out.println("</body>");
out.println("</html>");
} finally {
out.close();
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>MVCApplication</display-name>
<servlet>
<display-name>LoginServlet</display-name>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>com.controller.LoginServlet</servlet-class>
</servlet>
<servlet>
<display-name>RegisterServlet</display-name>
<servlet-name>RegisterServlet</servlet-name>
<servlet-class>com.controller.RegisterServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>InsertDataItem</servlet-name>
<servlet-class>com.controller.InsertDataItem</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/LoginServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>RegisterServlet</servlet-name>
<url-pattern>/RegisterServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>InsertDataItem</servlet-name>
<url-pattern>/InsertDataItem</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
</web-app>
Error
**exception**
javax.servlet.ServletException: Error instantiating servlet class com.controller.RegisterServlet
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
**root cause**
java.lang.ClassNotFoundException: com.controller.RegisterServlet
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
Whenever I submit my details to register in the database this error
pops up!. Can anyone please help me ??
You will need to ensure that the RegisterServlet class is actually available to the servlet container.
Typically, inside the WEB-INF directory, you will have the following directories:
lib
classes
You will need to make sure that the class is available inside the classes directory or the class is inside a JAR in the lib directory
I am trying simple login authentication using servlets and jdbc connection to MySQL database. After executing it on tomcat server I am getting following error:
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.leader.prog.Validate.checkUser(Validate.java:13)
at com.leader.servlet.Login1.doPost(Login1.java:42)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
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:503)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
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:421)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2466)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2455)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
I am sharing the content of all files:
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>login</servlet-name>
<servlet-class>com.leader.servlet.Login1</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>login</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>welcome</servlet-name>
<servlet-class>com.leader.servlet.Welcome</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>welcome</servlet-name>
<url-pattern>/welcome</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>Home.html</welcome-file>
</welcome-file-list>
</web-app>
Login1.java
package com.leader.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.leader.*;
import com.leader.prog.Validate;
#WebServlet("/Login1")
public class Login1 extends HttpServlet {
/**
* #see HttpServlet#HttpServlet()
*/
public Login1() {
super();
// TODO Auto-generated constructor stub
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String user = request.getParameter("userName");
String pass = request.getParameter("password");
if(Validate.checkUser(user.toString(),pass.toString()))
{
RequestDispatcher rs = request.getRequestDispatcher("Welcome");
rs.forward(request, response);
}
else
{
out.println("Username or Password incorrect");
RequestDispatcher rs = request.getRequestDispatcher("Home.html");
rs.include(request, response);
}
}
}
validate.java
package com.leader.prog;
import java.sql.*;
public class Validate
{
public static boolean checkUser(String user,String pass)
{
boolean st =false;
try{
//loading driver
Class.forName("com.mysql.jdbc.Driver");
//creating connection with the database
Connection con=DriverManager.getConnection
("jdbc:mysql://localhost:3306/person","root","password");
PreparedStatement ps =con.prepareStatement
("select * from person where pid=? and password=?");
ps.setString(1, user);
ps.setString(2, pass);
ResultSet rs =ps.executeQuery();
st = rs.next();
}catch(Exception e)
{
e.printStackTrace();
}
return st;
}
}
Please help me to get out of this issue.
Check the availability of mysql driver is in classpath. If you are using IDE(eclipse) try to add it to build path.
You should add Mysql connector library you your project buildpath
You can download library from
http://dev.mysql.com/downloads/connector/j/5.0.html
or
http://www.java2s.com/Code/Jar/c/Downloadcommysqljdbc515jar.htm