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Simple Url Handler Mapping Example

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The following example shows how to use Simple URL Handler Mapping using the Spring Web MVC framework. The SimpleUrlHandlerMapping class helps to explicitly-map URLs with their controllers respectively.

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

   <bean class = "org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
      <property name = "mappings">
         <props>
            <prop key = "/welcome.htm">welcomeController</prop>		   
            <prop key = "/helloWorld.htm">helloController</prop>
         </props>
      </property>
   </bean>

   <bean id = "helloController" class = "com.tutorialspoint.HelloController" />

   <bean id = "welcomeController" class = "com.tutorialspoint.WelcomeController"/>  
</beans>

For example, using above configuration, if URI

  • /helloWorld.htm is requested, DispatcherServlet will forward the request to the HelloController.

  • /welcome.htm is requested, DispatcherServlet will forward the request to the WelcomeController.

To start with, let us have a working Eclipse IDE in place and consider the following steps to develop a Dynamic Form based Web Application using Spring Web Framework −

Step Description
1 Create a project with a name hello under a package com.tutorialspoint as explained in the Spring MVC - Hello World Example chapter.
2 Create Java class HelloController and WelcomeController under the com.tutorialspoint package.
3 Create view files hello.jsp and welcome.jsp under the jsp sub-folder in WEB-INF folder.
4 The final step is to create the content of the source and configuration files and export the application as explained below.

HelloController.java

package com.tutorialspoint;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

public class HelloController extends AbstractController{
  
   @Override
   protected ModelAndView handleRequestInternal(HttpServletRequest request,
      HttpServletResponse response) throws Exception {
      ModelAndView model = new ModelAndView("hello");
      model.addObject("message", "Hello World!");
      return model;
   }
}

WelcomeController.java

package com.tutorialspoint;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

public class WelcomeController extends AbstractController{
  
   @Override
   protected ModelAndView handleRequestInternal(HttpServletRequest request,
      HttpServletResponse response) throws Exception {
      ModelAndView model = new ModelAndView("welcome");
      model.addObject("message", "Welcome!");
      return model;
   }
}

hello-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>
 
   <bean id = "studentValidator" class = "com.tutorialspoint.StudentValidator" />
   <bean id = "multipartResolver"
      class = "org.springframework.web.multipart.support.StandardServletMultipartResolver" />
 
   <bean class = "org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
      <property name = "mappings">
         <props>
            <prop key = "/welcome.htm">welcomeController</prop>		   
            <prop key = "/helloWorld.htm">helloController</prop>
         </props>
      </property>
   </bean>

   <bean id = "helloController" class = "com.tutorialspoint.HelloController" />

   <bean id = "welcomeController" class = "com.tutorialspoint.WelcomeController"/>
</beans>

hello.jsp

<%@ page contentType = "text/html; charset = UTF-8" %>
<html>
   <head>
      <title>Hello World</title>
   </head>
   <body>
      <h2>${message}</h2>
   </body>
</html>

welcome.jsp

<%@ page contentType = "text/html; charset = UTF-8" %>
<html>
   <head>
      <title>Welcome</title>
   </head>
   <body>
      <h2>${message}</h2>
   </body>
</html>

Output

Once you are done with creating source and configuration files, export your application. Right click on your application, use Run As → Maven Install option and save your hello.war file in Tomcat's webapps folder.

Now, start your Tomcat server and make sure you are able to access other webpages from the webapps folder by using a standard browser. Try a URL − http://localhost:8080/hello/helloWorld.htm and we will see the following screen, if everything is fine with the Spring Web Application.

Spring Controller Class Name Handler Mapping 1

Try a URL http://localhost:8080/TestWeb/welcome.htm and you should see the following result if everything is fine with your Spring Web Application.

Spring Controller Class Name Handler Mapping 2
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