This is continuation to my previous post. In my previous post, I explained how to handle exceptions at application level using @ControllerAdvice annotation.
@ControllerAdvice
public class GlobalExceptionHandler {
@ExceptionHandler(RuntimeException.class)
public String handleRuntimeException() {
return "runtimeException";
}
}
You can even achieve the same by adding below configurations in dispatcher servlet file.
class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
Find the below working application.
HelloWorldController.java
package com.sample.myApp.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class HelloWorldController {
@RequestMapping("/welcome")
public String getHelloMessage() {
boolean flag = true;
if (flag) {
throw new RuntimeException("Throwning blindly");
}
return "welcome";
}
}
Create welcome.jsp, runtimeException.jsp files under WEB-INF/jsp folder.
welcome.jsp
taglib uri="http://www.springframework.org/tags" prefix="spring"%>
page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
Hello, Good Morning
runtimeException.jsp
page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
Run time exception occured. Please contact the Administrator.
Create web.xml, HelloWorld-servlet.xml files under WEB-INF folder.
web.xml
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">Spring MVC Hello WorldApplication HelloWorld org.springframework.web.servlet.DispatcherServlet 1 HelloWorld /
HelloWorld-servlet.xml
xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">/>
base-package="com.sample.myApp" />
class="org.springframework.web.servlet.view.InternalResourceViewResolver">name="prefix" value="/WEB-INF/jsp/" /> name="suffix" value=".jsp" /> id="globalExcpetionHandlingResolver"
class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">name="exceptionMappings"> key="RuntimeException" value="runtimeException" /> name="defaultErrorView" value="Exception" /> name="warnLogCategory" value="MVCLogger" />
Create index.jsp file under webapp folder.
index.jsp
%@taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
Click on below button to get welcome page
Project structure looks like below.
Run the application on server.
Click on button ‘getWelcomeMessage’, you will be redirected to runtimeException.jsp
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This post first appeared on Java Tutorial : Blog To Learn Java Programming, please read the originial post: here
