Create Spring MVC Project
On the Eclipse, create a Spring MVC project
Enter Project Information:
- Name: LearnSpringMVCWithRealApps
- Group: com.demo
- Artifact: LearnSpringMVCWithRealApps
- Description: Learn Spring MVC with Real Apps
- Package: com.demo
Select the technologies and libraries to be used:
- Web
Click Next button to show Site Information for project
Click Finish button to finish create Spring MVC project
Configure pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo</groupId>
<artifactId>LearnSpringMVCWithRealApps</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>LearnSpringMVCWithRealApps</name>
<description>Learn Spring MVC with Real Apps</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!-- Spring MVC -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Tomcat for JSP rendering -->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Configure application.properties
spring.mvc.view.prefix = /WEB-INF/views/
spring.mvc.view.suffix = .jsp
spring.mvc.static-path-pattern=/resources/**
server.port=9596
Create Controllers
Create new package named com.demo.controllers. In this package, create controllers as below:
Demo1Controller
Create new java class, named Demo1Controller.java
package com.demo.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping("demo1")
public class Demo1Controller {
@RequestMapping(method = RequestMethod.GET)
public String index() {
return "demo1/index";
}
}
Demo2Controller
Create new java class, named Demo2Controller.java
package com.demo.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping("demo2")
public class Demo2Controller {
@RequestMapping(method = RequestMethod.GET)
public String index() {
return "demo2/index";
}
@RequestMapping(value = "index2", method = RequestMethod.GET)
public String index2() {
return "demo2/index";
}
@RequestMapping(value = "index3", method = RequestMethod.GET)
public String index3() {
return "demo2/index";
}
}
Create Views
Create new folders with path webapp\WEB-INF\views in src\main. In views folder, create views as below:
Demo1 View
Create new folder named demo1. Create new jsp file named index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Demo 1</title>
</head>
<body>
<h3>Demo 1</h3>
</body>
</html>
Demo2 View
Create new folder named demo2. Create new jsp file named index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Demo 2</title>
</head>
<body>
<h3>Demo 2</h3>
</body>
</html>
Create Interceptors
Create new package named com.demo.interceptors. In this package, create new interceptors as below:
Log1 Interceptor
Create new java class, named Log1Interceptor.java
package com.demo.interceptors;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
public class Log1Interceptor extends HandlerInterceptorAdapter {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
System.out.println("Log 1 - preHandle");
System.out.println("url: " + request.getRequestURL());
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
System.out.println("date: " + simpleDateFormat.format(new Date()));
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
System.out.println("Log 1 - postHandle");
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
System.out.println("Log 1 - afterCompletion");
}
}
Log2 Interceptor
Create new java class, named Log2Interceptor.java
package com.demo.interceptors;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
public class Log2Interceptor extends HandlerInterceptorAdapter {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
System.out.println("Log 2 - preHandle");
System.out.println("url: " + request.getRequestURL());
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
System.out.println("date: " + simpleDateFormat.format(new Date()));
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
System.out.println("Log 2 - postHandle");
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
System.out.println("Log 2 - afterCompletion");
}
}
Interceptor Configuration
Create new package named com.demo.configurations, In this package, create new java class named InterceptorConfiguration.java as below:
package com.demo.configurations;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import com.demo.interceptors.Log1Interceptor;
import com.demo.interceptors.Log2Interceptor;
@Configuration
public class InterceptorConfiguration implements WebMvcConfigurer {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new Log1Interceptor());
registry.addInterceptor(new Log2Interceptor())
.addPathPatterns("/demo2/*")
.excludePathPatterns("/demo2/index3");
}
}
Structure of Spring MVC Project
Run Application
Select LearnSpringMVCWithRealAppsApplication.java file in com.demo package, right click and select Run As/Spring Boot App menu
Access index method in demo1 controller with following url: http://localhost:9596/demo1
Output in Console
Log 1 - preHandle
url: http://localhost:9596/demo1
date: 11/13/2019 15:42:44
Log 1 - postHandle
Log 1 - afterCompletion
Access index method in demo2 controller with following url: http://localhost:9596/demo2
Output in Console
Log 1 - preHandle
url: http://localhost:9596/demo2
date: 11/13/2019 15:44:38
Log 1 - postHandle
Log 1 - afterCompletion
Access index2 method in demo2 controller with following url: http://localhost:9596/demo2/index2
Output in Console
Log 1 - preHandle
url: http://localhost:9596/demo2/index2
date: 11/13/2019 15:45:33
Log 2 - preHandle
url: http://localhost:9596/demo2/index2
date: 11/13/2019 15:45:33
Log 2 - postHandle
Log 1 - postHandle
Log 2 - afterCompletion
Log 1 - afterCompletion
Access index3 method in demo2 controller with following url: http://localhost:9596/demo2/index3
Output in Console
Log 1 - preHandle
url: http://localhost:9596/demo2/index3
date: 11/13/2019 15:46:09
Log 1 - postHandle
Log 1 - afterCompletion
