Spring Web Application Issue (MVC) Status 404 - java

I know this is a lot of code to throw out there but I'd appreciate it if someone can help me figure out the problem. It's just a basic MVC, there's only one link on the main page, "Login", and when clicked it should take you to login.jsp. However, it fails to do so. I believe the problem is with the controller because the annotations in the controller file are light grey (using intellij idea) as if they're not being used. "/login" does show up in the url.
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_3_1.xsd"
version="3.1">
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/config/spring-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
spring-servlet.xml (config):
<?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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.nusuth.controllers"></context:component-scan>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
loginController.java:
package com.nusuth.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class loginController {
#RequestMapping(value="/login" , method=RequestMethod.GET)
public ModelAndView loadLoginPage() {
ModelAndView mav = new ModelAndView("login");
return mav;
}
}


I think you can also write "login" controller as:
#Controller
public class loginController {
#RequestMapping(value="/login" , method=RequestMethod.GET)
public String loadLoginPage(Model model) {
model.addAttribute(new LoginForm()); // empty login form
return "login"; //jsp page name
}
}


#Muninn9,
I did notice your web.xml, it is missing ContextLoaderListener configuration, which eventually loads and initialize your bean container.
Add your log4j.xml/log4j.properties to web.xml and use this listener (Log4jConfigListener) which will enable your console logs.
Ensure you have a valid log4j.xml/log4j.properties in your project classpath settings.


From your log message I can see that catalina didn't found required class SpringServlet.
Which means required libraries wasn't included with the web project. All the required libraries of a web application should be in WEB-INF/lib directory.
if you use a build tool such as MAVEN or gradle it will they will handle it automatically.
Else you can
Create a folder WEB-INF/libs
Put all the required libraries there.
IntelliJ idea creates a directory named libs in your home directory and put all the libraries there if choose the option to download the libraries automatically. You can copy that directory to WEB-INF also


Fix you schema configuration to :
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"
otherwise <mvc:annotation-driven /> won't be registered correctly.
Here I fixed everything for you :
spring-servlet.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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.nusuth.controllers"></context:component-scan>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
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_3_1.xsd"
version="3.1">
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/config/spring-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
login.jsp
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>login Page</title>
</head>
<body>
<h1>Hello This is login page!</h1>
</body>
</html>
loginController.java
package com.nusuth.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class loginController {
#RequestMapping(value="/login" , method=RequestMethod.GET)
public ModelAndView loadLoginPage() {
ModelAndView mav = new ModelAndView("login");
return mav;
}
}
Now request the login.jsp with :
http://localhost:8080/LoginDemo/login

Related

Spring MVC: No mapping found for HTTP request with URI [/hello.jsp]

I am trying to get started with Spring MVC & Tomcat, however I don't seem to be able to create single handler to render a minimalistic page.
The following files have been created:
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="springapp" 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
http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>springapp</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/springapp-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springapp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<display-name>Spring MVC Framework Test</display-name>
</web-app>
springapp-servlet.xml
<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" xmlns:mvc="http://www.springframework.org/schema/cache"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:cache="http://www.springframework.org/schema/c"
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 http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">
<!--<mvc:annotation-driven />-->
<context:component-scan base-package="springapp.web.*"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/"/>
<property name="suffix" value=".jsp"/>
</bean>
<bean name="/hello.jsp" class="springapp.web.HelloController"/>
</beans>
hello.jsp
<%# page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>JSP Title</title>
</head>
<body>
${message}
</body>
</html>
HelloController.java
package springapp.web;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
#Controller
public class HelloController {
#RequestMapping(value="/hello", method=RequestMethod.GET)
public String printHello(ModelMap model) {
model.addAttribute("message", "Hello Spring MVC Framework!");
return "hello";
}
}
Folder structure:
My attempts at finding the handler:
16-Aug-2016 16:31:18.867 WARNING [http-nio-8080-exec-8] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/springapp/hello.jsp] in DispatcherServlet with name 'springapp'
16-Aug-2016 16:31:22.991 WARNING [http-nio-8080-exec-9] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/springapp/web/hello.jsp] in DispatcherServlet with name 'springapp'
16-Aug-2016 16:31:23.023 WARNING [http-nio-8080-exec-10] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/springapp/web/hello.jsp] in DispatcherServlet with name 'springapp'
Can someone please tell me what I am doing wrong?

Your code should be like this :
Also you should run it using /springapp/hello instead of /springapp/hello.jsp
Controller :
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";
}
}
web.xml
<web-app id="WebApp_ID" 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">
<display-name>Spring MVC Application</display-name>
<servlet>
<servlet-name>springapp</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springapp</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
HelloWeb-servlet.xml
<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="springapp.web" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
your jsp
<%# page contentType="text/html; charset=UTF-8" %>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>

As I can see your folder structure and the springapp-servlet.xml, I think you have to put hello.jsp file inside of WEB-INF folder because it could be the reason why can't find the page (Maybe show this type of error 404). According with springapp-servlet.xml you are indicating your jsp file should be inside WEB-INF folder.

Spring MVC shows HTTP status 404

This is the error message:-
This is my project structure:-
Following is my code:-
HelloController.java
package com.home.pack;
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";
}
}
web.xml
<web-app id="WebApp_ID" 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">
<display-name>Spring MVC Application</display-name>
<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.xml
<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.home.pack" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
hello.jsp
<%# page contentType="text/html; charset=UTF-8" %>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>
I am following this tutorial -> http://www.tutorialspoint.com/spring/spring_mvc_hello_world_example.htm but I am not able to get it to work. It seems that I am missing something here and would really appreciate if anybody points that out. Thanks.

You are trying to show the page "hello"? Spring probably see it as the controller since you did #RequestMapping("/hello")... So I guess here you're trying to show the controller as a page, that will surely show 404 error.
Try to change your method as fallow:
#RequestMapping(value = "/hello", method = RequestMethod.GET)
public String printHello(ModelMap model) {
model.addAttribute("message", "Hello Spring MVC Framework!");
return "hello";
}
And remove the request mapping on the controller
I guess it would work better...
Or let the request mapping on your controller and change your request mapping of the method for something else and acces it by adding .../hello/yourMethodValue

Spring MVC views don't seem to be working

I am having a bit of trouble to map the views in a simple Spring MVC beginner tutorial, and I keep getting the same error which is:
22:18:30.700 [http-nio-8080-exec-6] WARN o.s.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/web_spring/Candidate-module/getCandidate] in DispatcherServlet with name 'webmvc-dispatcher'
I have messed around with the names trying to get them to work but that wasn't the problem. I will post the code and any help would be greatly appreciated!
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<display-name>web_spring</display-name>
<servlet>
<servlet-name>webmvc-dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>webmvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/webmvc-dispatcher-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
webmvc-dispatcher-servlet.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.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<context:component-scan base-package="ie.cit.oossp" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
CandidateController.java
package web_spring.controller;
import java.util.List;
import java.util.Map;
import web_spring.beans.Candidate;
import web_spring.service.CandidateService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
#Controller
#RequestMapping("/Candidate-module")
public class CandidateController {
#Autowired
private CandidateService service;
#RequestMapping(value = "/getCandidate", method = RequestMethod.GET)
public String index(ModelMap model){
model.addAttribute("msg", "Hello Spring Web App");
return "vote";
}
}
vote.jsp
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%# page session="false" %>
<html>
<head>
<title>Vote here</title>
</head>
<body>
<h2>Vote : ${msg}</h2>
</body>
</html>

Enable annotation driven MVC by adding following config to the webmvc-dispatcher-servlet.xml:
<mvc:annotation-driven />
This registers a RequestMappingHandlerMapping, a RequestMappingHandlerAdapter, and an ExceptionHandlerExceptionResolver (among others) in support of processing requests with annotated controller methods using annotations such as #RequestMapping, #ExceptionHandler, and others.
So your config file would be like this:
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<mvc:annotation-driven />
// same as before
</beans>

Getting HTTP-404 error while running spring MVC application in Eclipse - Tutorials point hello world example

I am a beginner to Spring i am learning from tutorials point , Below code is exactly as it is in the Tutorials point but when i try to run it i am getting 404 error, the code is hello world program when i run on eclipse using tomcat server i am getting error like this
The url i am using on browser is http://localhost:8080/HelloWeb/hello
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";
}
}
HelloWeb-servlet.xml:
<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>
web.xml:
<web-app id="WebApp_ID" 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">
<display-name>Spring MVC Application</display-name>
<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>
hello.jsp:
<%# page contentType="text/html; charset=UTF-8" %>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>
and this is my directory structure
HelloWeb Project:
|--HelloController.java
|-- WebContent
`-- WEB-INF
|-- jsp
|-- web.xml

http://howtodoinjava.com/2015/02/05/spring-mvc-hello-world-example/#hello_world
Follow the above URL , it works completely I have tried and make sure you have added dependencies for spring in pom.xml.
Also in your webapp folder HelloWeb-servlet.xml should also be present.

Getting 404 error when making a request from Spring MVC

i have created a war file and kept it inside webapps directory in tomcat and starting the tomcat but when i am hitting http://localhost:8181/HelloWeb/hello i am getting 404 error. i am new to spring mvc any help will be appreciated. Below are my files (doing the example given in http://www.tutorialspoint.com/spring/spring_mvc_hello_world_example.htm.
HelloController.java
package dummyPackageOne;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
#Controller
#RequestMapping("/hello")
public class HelloController {
#RequestMapping(method=RequestMethod.GET)
public String printHello(ModelMap modelMap){
modelMap.addAttribute("message", "this is the message");
return "hello";
}
}
this is my hello.jsp
<%# page contentType="text/html; charset=UTF-8" %>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>
HelloWeb-Servlet.xml
<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="dummyPackageOne" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>springTest</display-name>
<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>

Try adding <mvc:annotation-driven> after your <context:component-scan base-package="dummyPackageOne" />. This is required to register HandlerMapping and HandlerAdapter.
Also make sure your war/exploded war name matches your web context.

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