SpringMVC学习笔记（二）使用IntelliJ IDEA开发Spring MVC HelloWorld(基于Maven)

2019-11-11 04:30:35

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参考

（1）SPRingMVC框架入门配置 IDEA下搭建Maven项目（2）使用IntelliJ IDEA 配置Maven（入门）（3）《Spring入门经典》(基于本书第三章)

Hello World Spring MVC应用程序

步骤

（1）根据原型maven-archetype-webapp创建一个空的Maven Web应用程序项目。

这里写图片描述不会？点击这里参考

（2）导入Spring框架支持的包，我的Spring版本是4.1.7

①我的Spring框架压缩包：spring-framework-4.1.7.RELEASE-dist.zip ② 这里写图片描述 ③把所有Spring相关的jar包添加进来 ④更新Update本地仓库，然后写依赖项时就能智能导入了，参考： intellij idea maven dependency自动补全

（3）在pom.xml文件中分别添加spring-webmvc、spring-core、spring-beans、spring-context、spring-web依赖项。

<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.zqx</groupId> <artifactId>SpringMVCBasic4</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>SpringMVCBasic4 Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.7.RELEASE</version> </dependency> </dependencies> <build> <finalName>SpringMVCBasic4</finalName> </build></project>

（4）在web.xml中使用URL映射定义Dispatcher Servlet

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" ><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"> <display-name>Archetype Created Web Application</display-name> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping></web-app>

（5）为应用程序上下文配置而定义springmvc-servlet.xml文件

<?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.xsd"> <context:component-scan base-package="com.wiley.beginningspring.ch3" /> <context:annotation-config /> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/" /> <property name="suffix" value=".jsp" /> </bean></beans>

（6）创建一个简单的控制器，该控制器向模型数据添加一条欢迎信息，并返回UI页面的名称(helloReader.jsp)，以便显示该信息

package com.wiley.beginningspring.ch3.controller;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;import static org.springframework.web.bind.annotation.RequestMethod.GET;@Controller@RequestMapping(value="/hello", method = GET)public class HelloReaderController { @RequestMapping(value = "/hello", method = GET) public ModelAndView sayHello() { ModelAndView mv = new ModelAndView(); mv.addObject("message", "Hello Reader!"); mv.setViewName("helloReader"); return mv; }}