Spring MVC 基础教程

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1. 创建一个简单的maven项目

2. 修改pom.xml文件

<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.spring</groupId>    <artifactId>WebMvc</artifactId>    <version>0.0.1-SNAPSHOT</version>    <packaging>war</packaging>    <properties>        <!-- 基本属性 -->        <java.version>1.8</java.version>        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>    </properties>    <dependencies>        <!-- spring mvc -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>4.3.9.RELEASE</version>        </dependency>        <!-- 其他web依赖 -->        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>jstl</artifactId>            <version>1.2</version>        </dependency>        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>javax.servlet-api</artifactId>            <version>3.1.0</version>            <scope>provided</scope>        </dependency>        <dependency>            <groupId>javax.servlet.jsp</groupId>            <artifactId>javax.servlet.jsp-api</artifactId>            <version>2.3.1</version>            <scope>provided</scope>        </dependency>        <!-- spring事务 -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-tx</artifactId>            <version>4.3.9.RELEASE</version>        </dependency>    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-compiler-plugin</artifactId>                <version>3.6.2</version>                <configuration>                    <source>1.8</source>                    <target>1.8</target>                </configuration>            </plugin>            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-war-plugin</artifactId>                <version>3.1.0</version>                <configuration>                    <failOnMissingWebXml>false</failOnMissingWebXml>                </configuration>            </plugin>            <plugin>                <groupId>org.eclipse.jetty</groupId>                <artifactId>jetty-maven-plugin</artifactId>                <version>9.4.6.v20170531</version>            </plugin>        </plugins>    </build></project>

3. 在src/main/resources/views 下创建index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body>    <pre>Welcome to spring mvc world</pre></body></html>

4. spring mvc 配置

package com.amgji.config;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.EnableWebMvc;import org.springframework.web.servlet.view.InternalResourceViewResolver;@Configuration@EnableWebMvc@ComponentScan("com.amgji")public class MyMvcConfig {    @Bean    public InternalResourceViewResolver viewResolver(){        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();        viewResolver.setPrefix("/WEB-INF/classes/views/");        viewResolver.setSuffix(".jsp");        return viewResolver;    }}

5. Web配置

package com.amgji.config;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.ServletRegistration.Dynamic;import org.springframework.web.WebApplicationInitializer;import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;import org.springframework.web.servlet.DispatcherServlet;public class WebInitializer implements WebApplicationInitializer {    @Override    public void onStartup(ServletContext servletContext) throws ServletException {        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();        ctx.register(MyMvcConfig.class);        ctx.setServletContext(servletContext);        Dynamic servlet = servletContext.addServlet("dispatcher", new DispatcherServlet(ctx));        servlet.addMapping("/");        servlet.setLoadOnStartup(1);    }}

6. 简单控制器

package com.amgji.web;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class HelloController {    @RequestMapping("/index")    public String hello(){        return "index";    }}

7. 测试

执行maven命令：

mvn jetty:run

在浏览器中输入http://localhost:8080/index 进行测试

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