Spring webMVC - org.springframework.web.servlet.DispatcherServlet noHandlerFound

[Karnati Sudhakar]

Hi All,

I am using the following example:


web.xml

   <!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
	<display-name>Archetype Created Web Application</display-name>
	

	<servlet>
		<servlet-name>example</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
		<param-name>contextConfigLocation</param-name>
	<param-value>/WEB-INF/application-config.xml</param-value>
	</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>example</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

</web-app>
 

application-config.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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-3.0.xsd">



	<context:component-scan base-package="com.mvcdemoapp"></context:component-scan>

</beans>   

WelcomeController.java

  package com.mvcdemoapp;

import org.springframework.stereotype.Controller;

@Controller
public class WelcomeController {
	
	@RequestMapping("/helloWorld")
	public String SayHello(){
		
		return "redirect:http://www.bing.com";
		
	}

}
  

when i am typing this url in browser http://localhost:8080/mvcdemoapp/helloWorld

i am getting the below error:

Mar 4, 2010 3:08:21 PM org.springframework.web.servlet.DispatcherServlet noHandlerFound

WARNING: No mapping found for HTTP request with URI [/mvcdemoapp/helloWorld] in DispatcherServlet with name 'example'

Please some body guide me what is wrong with the above code.

[Mark Spritzler]

Is that a correct URL pattern? Do you need an "*"?

<servlet-mapping>
<servlet-name>example</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

Mark

[Craig Walls]

I think Mark's right...the path should probably be "/*"

[Karnati Sudhakar]

Craig Walls wrote:I think Mark's right...the path should probably be "/*"

I changed it and still not working..

Here is the tomcat log:

Mar 5, 2010 10:53:22 AM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.5.0_15\bin;.;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\IBM\WebSphere MQ\Java\lib;D:\oracle\product\10.2.0\client_1\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Microsoft SQL Server\80\Tools\BINN;C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;C:\Program Files\IBM\Trace Facility;C:\Program Files\Personal Communications;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\Microsoft SQL Server\90\DTS\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies\;C:\Program Files\Windows Imaging\;C:\Program Files\IBM\WebSphere MQ\bin;C:\Program Files\IBM\WebSphere MQ\tools\c\samples\bin;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files\Java\jdk1.6.0_12\bin;C:\Program Files\jakarta-tomcat-5.0.28\common\lib\servlet-api.jar;C:\Program Files\jakarta-tomcat-5.0.28\common\lib\jsp-api.jar;.;C:\ANT\apache-ant-1.7.1\bin;C:\Program Files\CollabNet Subversion Client;C:\Program Files\glassfish-v2ur2\javadb\bin;C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322;C:\Program Files\Apache Software Foundation\apache-maven-2.2.1\apache-maven-2.2.1\bin;C:\Documents and Settings\149955\Desktop\gwt-windows-1.7.0\gwt-windows-1.7.0
Mar 5, 2010 10:53:22 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:mvcdemoapp' did not find a matching property.
Mar 5, 2010 10:53:23 AM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Mar 5, 2010 10:53:23 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2021 ms
Mar 5, 2010 10:53:23 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Mar 5, 2010 10:53:23 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.24
Mar 5, 2010 10:53:24 AM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'example'
Mar 5, 2010 10:53:24 AM org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'example': initialization started
Mar 5, 2010 10:53:24 AM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing WebApplicationContext for namespace 'example-servlet': startup date [Fri Mar 05 10:53:24 GMT+05:30 2010]; root of context hierarchy
Mar 5, 2010 10:53:24 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/application-config.xml]
Mar 5, 2010 10:53:25 AM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@149d886: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor]; root of factory hierarchy
Mar 5, 2010 10:53:27 AM org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'example': initialization completed in 3406 ms
Mar 5, 2010 10:53:27 AM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Mar 5, 2010 10:53:27 AM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Mar 5, 2010 10:53:27 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/47 config=null
Mar 5, 2010 10:53:27 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 4862 ms
Mar 5, 2010 10:54:13 AM org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/mvcdemoapp/helloWorld] in DispatcherServlet with name 'example'

and it is my POM.xml

   <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.mvcdemoapp</groupId>
	<artifactId>mvcdemoapp</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>mvcdemoapp Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>3.0.1.RELEASE</version>
		</dependency>
	</dependencies>
	<build>
		<finalName>mvcdemoapp</finalName>
	</build>
</project>
 

What might be the problem?

[Kuladip Yadav]

Hi,

INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@149d886: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor];

above log suggest bean for WelcomeController is not created.

Also logs for registering handler are missing.

May be your WelcomeController class package and component-scan base-package in application-context.xml are different.

<context:component-scan base-package="com.mvcdemoapp"></context:component-scan>

Both should be exactly same.

Thanks.

[Karnati Sudhakar]

Kuldeep Yadav wrote:Hi,

INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@149d886: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,
org.springframework.context.annotation.internalAutowiredAnnotationProcessor,
org.springframework.context.annotation.internalRequiredAnnotationProcessor,
org.springframework.context.annotation.internalCommonAnnotationProcessor];

above log suggest bean for WelcomeController is not created.

Also logs for registering handler are missing.

May be your WelcomeController class package and component-scan base-package in application-context.xml are different.

<context:component-scan base-package="com.mvcdemoapp"></context:component-scan>

Both should be exactly same.

Thanks.

Kuldeep, Thanks for your reply..

the package of WelcomeController.java and base-package value in application-config.xml is same.

I have spent whole day to find out the problem but no success..I am really going mad...Any help guys....

[Karnati Sudhakar]

I found out that after i deployed the application in tomcat, The C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\mvcdemoapp\WEB-INF\classes\com\mvcdemoapp is empty...

I think it is supposed to have class file of WelcomeController.java..

what i am doing wrong?

I am using maven plugin for eclipse.

I am exporting the war file of the project to webapps folder of tomcat and running tomcat again.


Some body help me

[Kuladip Yadav]

Hi Sudhakar,

If it is originally maven project then first convert it into eclipse WTP project
using :

mvn -Dwtpversion=2.0 compile eclipse:eclipse 

And then import project in eclipse and try again.

Hopefully, it will work for you.

Thanks.

[Karnati Sudhakar]

Guys,

I found out the problem..the war file i am deploying in tomcat does not have class file of welcomecontroller.java

This happened because i am running maven commands in one location and my eclipse changes happening in one location..

at last i resolved this..

thanks guys..