maven+spring mvc环境搭建注解版（无web.xml，maven jetty插件运行）

环境：

Spring Framework 4.3.7.RELEASE

Servlet 3.1.0

JDK 1.8

创建maven webapp项目：maven-spring-webmvc  项目结构如下：

各文件代码如下：

pom.xml

<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.pp</groupId><artifactId>maven-spring-webmvc</artifactId><packaging>war</packaging><version>1.0.0</version><name>maven-spring-webmvc</name><url>http://maven.apache.org</url><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><maven.compiler.source>1.8</maven.compiler.source><maven.compiler.target>1.8</maven.compiler.target></properties><dependencies><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.1.0</version><scope>provided</scope></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>4.3.7.RELEASE</version></dependency></dependencies><build><plugins><!--     jetty的maven插件，配置这个插件之后，就可以直接在项目的跟目录执行mvn jetty:run来运行项目。而无需把项目打成war扔到web容器中 --><plugin><groupId>org.eclipse.jetty</groupId><artifactId>jetty-maven-plugin</artifactId><version>9.4.2.v20170220</version><configuration><stopKey>foo</stopKey><stopPort>9999</stopPort><httpConnector><!-- jetty端口 --><port>9090</port></httpConnector><webApp><contextPath>/</contextPath></webApp></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-war-plugin</artifactId><version>3.0.0</version><configuration><!--             因为本例子没有用到web.xml，也没有创建web.xml，所以这里必须配置这个插件。 否则使用maven打包的时候会有问题 --><failOnMissingWebXml>false</failOnMissingWebXml></configuration></plugin></plugins></build></project>

package com.pp.web;import org.springframework.context.annotation.ComponentScan;import org.springframework.web.servlet.config.annotation.EnableWebMvc;/** * 启用mvc */@EnableWebMvc/** * 设置componen的扫描包路径  */@ComponentScan("com.pp.web")public class AppConfig {}

package com.pp.web;import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;/** * 系统初始化入口 */public class AppDispatcherServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {/** * 设置spring容器启动的入口 */@Overrideprotected Class<?>[] getRootConfigClasses() {return new Class<?>[]{AppConfig.class};}@Overrideprotected Class<?>[] getServletConfigClasses() {return null;}/** * 设置DispatcherServlet的拦截路径 */@Overrideprotected String[] getServletMappings() {return new String[]{"/"};}}

package com.pp.web;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;/** *  定制mvc */@Configurationpublic class AppWebMvcConfigurer extends WebMvcConfigurerAdapter {/** * 配置静态资源的映射 */public void addResourceHandlers(ResourceHandlerRegistry registry) {    registry.addResourceHandler("/static/**").addResourceLocations("/static/");}}

package com.pp.web.controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class IndexController {@GetMapping("/index")public String index(){return "hello index";}}

最后，在项目的跟目录执行mvn clean jetty:run 运行项目

访问

http://127.0.0.1:9090/index  访问controller

http://127.0.0.1:9090/static/list.html  访问静态资源