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Simple program to print Hello Spring MVC

 
Greenhorn
Posts: 2
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Hello friends,
I am new to springs, tried to execute a simple web application in eclipse.
But unfortunately even after trying as directed in the tutorial, I am unable to execute the code

On running the application i get HTTP Status 404 -
and
eclipse console says:

Nov 19, 2013 2:55:31 PM 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\jre7\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre7/bin/client;C:/Program Files/Java/jre7/bin;C:/Program Files/Java/jre7/lib/i386;C:\Program Files\PC Connectivity Solution\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Java\jdk1.7.0_01\bin;\;C:\Program Files\MySQL\MySQL Server 5.5\bin;C:\Program Files\Microsoft SQL Server\80\Tools\BINN;C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\eclipse;;.
Nov 19, 2013 2:55:31 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:HelloWeb' did not find a matching property.
Nov 19, 2013 2:55:31 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Nov 19, 2013 2:55:31 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Nov 19, 2013 2:55:31 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 435 ms
Nov 19, 2013 2:55:31 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Nov 19, 2013 2:55:31 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.32
Nov 19, 2013 2:55:32 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(E:\New workspace after CORN\test workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\HelloWeb\WEB-INF\lib\servlet-api-2.3.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
log4j:WARN No appenders could be found for logger (org.springframework.web.servlet.DispatcherServlet).
log4j:WARN Please initialize the log4j system properly.
Nov 19, 2013 2:55:34 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'HelloWeb'
Nov 19, 2013 2:55:35 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Nov 19, 2013 2:55:35 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Nov 19, 2013 2:55:35 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 3157 ms

***********************************************************
Can anyone tell me what the problem is and how to get the application run properly.
Any kind of help is appreciated.


following is the listing of my code:

Web.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >

<servlet>
<servlet-name>HelloWeb</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloWeb</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
-----------------------------------------------------------------------------
HelloWeb-servlet:

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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.tutorialspoint" />

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
---------------------------------------------------------------------------------------------
HelloController.java:

package com.tutorialspoint;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.ui.ModelMap;

@Controller
@RequestMapping("/hello")
public class HelloController{

@RequestMapping(method = RequestMethod.GET)
public String printHello(ModelMap model) {
model.addAttribute("message", "Hello Spring MVC Framework!");

return "hello";
}

}
-------------------------------------------------------------------------------------
hello.jsp:

<%@ page contentType="text/html; charset=UTF-8" %>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>
 
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1. Delete servlet-api.jar in your WEB-INF/lib. Other than spring jars and common logging, delete all other jars.
serlvet-api JAR is provided by Tomcat and should never be included in webapp libs.

2. What is the URL you're using to verify? Since "/hello" is the only mapped path, only "http://localhost:8080/<webappname>/hello" will work, not "http://localhost:8080/<webappname>"
The 404 message will mention exactly which resource is not available; pay attention to that.

3. Verify that your hello.jsp is under /WEB-INF/jsp.

4. Verify that HelloWeb-servlet.xml and web.xml are directly under /WEB-INF/.
 
Don't get me started about those stupid light bulbs.
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