javax.servlet.ServletException: No adapter for handler

[vineet bindal]

Hi,


I am stuck with this error for 2 days now.

below are my dispatcher servlet mappings

<?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" 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-3.0.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/" /> <beans:bean name="viewResolver" class="org.springframework.web.servlet.view.velocity.VelocityViewResolver"> <beans:property name="prefix" value="" /> <beans:property name="suffix" value=".vm" /> <beans:property name="exposeSpringMacroHelpers" value="true"/> </beans:bean> <beans:bean name="velocityConfig" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer"> <beans:property name="resourceLoaderPath" value="/WEB-INF/velocity/" /> </beans:bean> <context:component-scan base-package="com.peanuts.blackboard" /> <!-- check what would be the default class here, in case we don't want common-dpcp --> <beans:bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <beans:property name="driverClassName" value="org.postgresql.Driver" /> <beans:property name="url" value="jdbc:postgresql:postgres://localhost:5432/blackboard" /> <beans:property name="username" value="postgres" /> <beans:property name="password" value="password" /> </beans:bean> <beans:bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <beans:property name="dataSource" ref="myDataSource" /> <beans:property name="mappingResources"> <beans:list> <beans:value>com/peanuts/support/database/user.hbm.xml</beans:value> </beans:list> </beans:property> <beans:property name="hibernateProperties"> <beans:props> <beans:prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect </beans:prop> <beans:prop key="hibernate.show_sql">true</beans:prop> <beans:prop key="hibernate.hbm2ddl.auto">create</beans:prop> </beans:props> </beans:property> </beans:bean> <beans:bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <beans:property name="sessionFactory" ref="sessionFactory" /> </beans:bean> <!-- <beans:bean id="hibernateTemplate" class="org.springframework.orm"> <beans:property name="sessionFactory" ref="sessionFactory" /> </beans:bean> --> <beans:bean id="applicationSecurityManager" class="com.peanuts.blackboard.util.ApplicationSecurityManager" /> <!-- Controllers --> <beans:bean id="loginController" class="com.peanuts.blackboard.web.controller.LoginController"> <beans:property name="userManager" ref="userManager" /> <beans:property name="formView" value="login" /> <beans:property name="successView" value="redirect:redirect.html" /> <beans:property name="applicationSecurityManager" ref="applicationSecurityManager" /> </beans:bean> <!-- Managers --> <beans:bean id="userManager" class="com.peanuts.blackboard.bus.svc.impl.UserManager"> <beans:property name="userDAO" ref="userDAO" /> </beans:bean> <!-- DAOs --> <beans:bean id="userDAO" class="com.peanuts.blackboard.database.dao.impl.UserDAO"> <beans:property name="sessionFactory" ref="sessionFactory" /> </beans:bean> <!-- <bean name="/user/*.htm" class="com.vaannila.web.UserController" > <property name="userDAO" ref="myUserDAO" /> </bean> --> <!-- URL Mapping --> <beans:bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <beans:property name="mappings"> <beans:props> <beans:prop key="login.html">loginController</beans:prop> <beans:prop key="home.html">loginController</beans:prop> <!-- <beans:prop key="loginAction">loginController</beans:prop> --> <!-- <beans:prop key="logout.html">logoutController</beans:prop> <beans:prop key="newUser.html">registerController</beans:prop> <beans:prop key="forgetPassword.html">forgetPasswordController </beans:prop> --> </beans:props> </beans:property> </beans:bean>



below is my web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app 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"> <!-- The definition of the Root Spring Container shared by all Servlets and Filters --> <context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/spring/root-context.xml </param-value> </context-param> <!-- <context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/spring/root-context.xml /WEB-INF/spring/appServlet/blackboard-data-servlet.xml /WEB-INF/spring/appServlet/blackboard-security-servlet.xml /WEB-INF/spring/appServlet/blackboard-service-servlet.xml </param-value> </context-param> --> <!-- Creates the Spring Container shared by all Servlets and Filters --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Processes application requests --> <servlet> <servlet-name>blackboard</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/appServlet/blackboard-servlet.xml</param-value> </init-param> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>*.htm</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>/home.htm</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>/velocity/home.html</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>/Blackboard/login.html</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>/home.html</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>blackboard</servlet-name> <url-pattern>/login.html</url-pattern> </servlet-mapping> </web-app>

below is my controller

 package com.peanuts.blackboard.web.controller;
import java.lang.annotation.Annotation;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import com.peanuts.blackboard.bus.svc.IUserManager;
import com.peanuts.blackboard.util.ApplicationSecurityManager;

/**
 * @version=1.0
 * @author vbinda
 * 
 */

public class LoginController implements Controller{
	private String commandClass;
	private String formView;
	private String successView;
	private IUserManager userManager;
	private ApplicationSecurityManager applicationSecurityManager;


	public ModelAndView handleRequest(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		String recentRants= "Hello USer";
			System.out.println("Its getting the request");
		return new ModelAndView("login",
				"rants", recentRants);
	}

	public String getCommandClass() {
		return commandClass;
	}

	public void setCommandClass(String commandClass) {
		this.commandClass = commandClass;
	}

	public String getFormView() {
		return formView;
	}

	public void setFormView(String formView) {
		this.formView = formView;
	}

	public String getSuccessView() {
		return successView;
	}

	public void setSuccessView(String successView) {
		this.successView = successView;
	}

	public IUserManager getUserManager() {
		return userManager;
	}

	public void setUserManager(IUserManager userManager) {
		this.userManager = userManager;
	}
	

	public ApplicationSecurityManager getApplicationSecurityManager() {
		return applicationSecurityManager;
	}

	public void setApplicationSecurityManager(
			ApplicationSecurityManager applicationSecurityManager) {
		this.applicationSecurityManager = applicationSecurityManager;
	}



}

please suggest what could be causing the error and how to resolve it?

[vineet bindal]

here is the stack trace


SEVERE: Servlet.service() for servlet [blackboard] in context with path [/Blackboard] threw exception [No adapter for handler [com.peanuts.blackboard.web.controller.LoginController@3778cf]: Does your handler implement a supported interface like Controller?] with root cause
javax.servlet.ServletException: No adapter for handler [com.peanuts.blackboard.web.controller.LoginController@3778cf]: Does your handler implement a supported interface like Controller?
at org.springframework.web.servlet.DispatcherServlet.getHandlerAdapter(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:760)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at com.springsource.insight.collection.tcserver.request.HttpRequestOperationCollectionValve.invoke(HttpRequestOperationCollectionValve.java:84)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)