maven+springMVC(二)
【目录】
【步骤】
①修改pop.xml(<dependencies>标签)
1 <dependency>
2 <groupId>javax.servlet</groupId>
3 <artifactId>servlet-api</artifactId>
4 <version>2.5</version>
5 <scope>provided</scope>
6 </dependency>
7
8 <dependency>
9 <groupId>org.springframework</groupId>
10 <artifactId>spring-web</artifactId>
11 <version>4.1.2.RELEASE</version>
12 <scope>compile</scope>
13 </dependency>
14 <dependency>
15 <groupId>org.springframework</groupId>
16 <artifactId>spring-webmvc</artifactId>
17 <version>4.1.2.RELEASE</version>
18 <scope>compile</scope>
19 </dependency>
②修改web.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
5
6 <servlet>
7 <servlet-name>spring</servlet-name> <!-- 属性随意，只要上下一致即可 -->
8 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
9 </servlet>
10
11 <servlet-mapping>
12 <servlet-name>spring</servlet-name> <!-- 与上方一致 -->
13 <url-pattern>/</url-pattern><!-- 拦截所有请求 -->
14 </servlet-mapping>
15
16 </web-app>
🌂以上配置会直接在WEB-INF中查找对应 “服务名-servlet.xml”，此处即，spring-servlet.xml（没有则创建）
1 <?xml version="1.0" encoding="UTF-8"?>
2 <beans xmlns="http://www.springframework.org/schema/beans"
3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
4 xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
5 xsi:schemaLocation="http://www.springframework.org/schema/beans
6 http://www.springframework.org/schema/beans/spring-beans.xsd
7 http://www.springframework.org/schema/context
8 http://www.springframework.org/schema/context/spring-context.xsd
9 http://www.springframework.org/schema/tx
10 http://www.springframework.org/schema/tx/spring-tx.xsd
11 http://www.springframework.org/schema/mvc
12 http://www.springframework.org/schema/mvc/spring-mvc.xsd">
13
14 <!-- 配置扫描的包（此配置会自动扫描com.springdemo下的所有包中的含有注解的类（如@Controller, @Service等）） -->
15 <context:component-scan base-package="com.springdemo.*" />
16
17 <!-- 注册HandlerMapper、HandlerAdapter两个映射类 ，负责将请求映射到类和方法中-->
18 <mvc:annotation-driven />
19
20 <!-- 访问静态资源 ，因为配置的spring是拦截所有请求，需如下配置来让静态资源通过（如js, css文件等） -->
21 <mvc:default-servlet-handler />
22
23 <!-- 视图解析器 ：是将Controller类返回的视图名加上配置的前后缀进行展示-->
24 <bean
25 class="org.springframework.web.servlet.view.InternalResourceViewResolver">
26 <property name="prefix" value="/WEB-INF/view/"></property>
27 <property name="suffix" value=".jsp"></property>
28 </bean>
29
30 </beans>
④创建视图（在WEB-INF下创建view文件夹，view文件夹下创建demo.jsp）
1 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
2 pageEncoding="utf-8"%>
3 <!DOCTYPE html>
4 <html>
5 <head>
6 <meta charset="utf-8">
7 <title>DomePage</title>
8 </head>
9 <body>
10
11 <h1>This is springMVC Demo Page</h1>
12 </body>
13 </html>
😭创建controller（创建com.springdemo.controller包，包下创建DemoController.java文件）
1 package com.springdemo.controller;
2
3 import org.springframework.stereotype.Controller;
4 import org.springframework.web.bind.annotation.RequestMapping;
5
6 @Controller
7 @RequestMapping("/demo")
8 public class DemoController {
9
10 @RequestMapping("/index")
11 public String index(){
12 return "demo";
13 }
14 }
⑥Tomcat部署访问地址（http://localhost:8080/demo/demo/index）
