1、web.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> 3 <display-name>springmvc1</display-name> 4 5 <filter> 6 <filter-name>characterEncoding</filter-name> 7 <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 8 <init-param> 9 <param-name>encoding</param-name> 10 <param-value>UTF-8</param-value> 11 </init-param> 12 </filter> 13 <filter-mapping> 14 <filter-name>characterEncoding</filter-name> 15 <url-pattern>/*</url-pattern> 16 </filter-mapping> 17 18 <servlet> 19 <servlet-name>springmvc</servlet-name> 20 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 21 <init-param> 22 <param-name>contextConfigLocation</param-name> 23 <param-value>classpath:springmvc.xml</param-value> 24 </init-param> 25 </servlet> 26 <servlet-mapping> 27 <servlet-name>springmvc</servlet-name> 28 <url-pattern>*.do</url-pattern> 29 </servlet-mapping> 30 <!-- <servlet-mapping> 31 <servlet-name>springmvc</servlet-name> 32 <url-pattern>/rest/*</url-pattern> 33 </servlet-mapping> --> 34 35 <welcome-file-list> 36 <welcome-file>index.html</welcome-file> 37 <welcome-file>index.htm</welcome-file> 38 <welcome-file>index.jsp</welcome-file> 39 <welcome-file>default.html</welcome-file> 40 <welcome-file>default.htm</welcome-file> 41 <welcome-file>default.jsp</welcome-file> 42 </welcome-file-list> 43 44 </web-app>
2、springmvc.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:mvc="http://www.springframework.org/schema/mvc" 4 xmlns:aop="http://www.springframework.org/schema/aop" 5 xmlns:tx="http://www.springframework.org/schema/tx" 6 xmlns:context="http://www.springframework.org/schema/context" 7 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 8 xsi:schemaLocation="http://www.springframework.org/schema/beans 9 http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 10 http://www.springframework.org/schema/mvc 11 http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 12 http://www.springframework.org/schema/context 13 http://www.springframework.org/schema/context/spring-context-3.2.xsd 14 http://www.springframework.org/schema/aop 15 http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 16 http://www.springframework.org/schema/tx 17 http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"> 18 19 <!-- 把Controller交给spring管理 --> 20 <context:component-scan base-package="com.xiaostudy"/> 21 22 <!-- <mvc:annotation-driven/> --><!-- 这个可以替代下面处理器映射器和处理器适配器，仅在注解情况下可用 --> 23 24 <!-- 配置注解处理器映射器 功能：寻找执行类Controller --> 25 <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/> 26 27 <!-- 配置注解处理器适配器 功能：调用controller方法，执行controller --> 28 <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/> 29 30 <!-- 配置sprigmvc视图解析器：解析逻辑试图 31 后台返回逻辑试图：index 32 视图解析器解析出真正物理视图：前缀+逻辑试图+后缀====/WEB-INF/index.jsp --> 33 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 34 <property name="prefix" value="/WEB-INF/"/> 35 <property name="suffix" value=".jsp"/> 36 </bean> 37 </beans>
3、domain类
1 package com.xiaostudy.domain; 2 3 public class User { 4 5 private int id; 6 private String username; 7 private String password; 8 private int age; 9 10 public int getId() { 11 return id; 12 } 13 14 public void setId(int id) { 15 this.id = id; 16 } 17 18 public String getUsername() { 19 return username; 20 } 21 22 public void setUsername(String username) { 23 this.username = username; 24 } 25 26 public String getPassword() { 27 return password; 28 } 29 30 public void setPassword(String password) { 31 this.password = password; 32 } 33 34 public int getAge() { 35 return age; 36 } 37 38 public void setAge(int age) { 39 this.age = age; 40 } 41 42 @Override 43 public String toString() { 44 return "User [id=" + id + ", username=" + username + ", password=" + password + ", age=" + age + "]"; 45 } 46 47 }
4、注解类
1 package com.xiaostudy.controller; 2 3 import org.springframework.stereotype.Controller; 4 import org.springframework.ui.Model; 5 import org.springframework.web.bind.annotation.PathVariable; 6 import org.springframework.web.bind.annotation.RequestMapping; 7 import org.springframework.web.bind.annotation.RequestMethod; 8 import org.springframework.web.bind.annotation.RequestParam; 9 10 import com.xiaostudy.domain.User; 11 12 @Controller//<bean class="com.xiaostudy.controller.MyController"/> 13 @RequestMapping(value="/myController")//访问该类的方法时，前面多这样一个路径 14 public class MyController { 15 16 // @RequestMapping("hello")//http://localhost:8080/demo2/hello.do 17 // @RequestMapping("/hello")//http://localhost:8080/demo2/hello.do 18 // @RequestMapping(value="/hello.do")//http://localhost:8080/demo2/hello.do 19 // @RequestMapping(value="/hello.do",method=RequestMethod.GET)//http://localhost:8080/demo2/hello.do 20 // @RequestMapping(value="/hello.do",method= {RequestMethod.GET,RequestMethod.POST})//http://localhost:8080/demo2/hello.do 21 public String print() { 22 return "index"; 23 } 24 25 @RequestMapping("hi")//http://localhost:8080/demo2/myController/hi.do 26 public String hello() { 27 return "index"; 28 } 29 30 @RequestMapping("requestint")//http://localhost:8080/demo2/myController/requestint.do 31 public String requestint(int id) { 32 System.out.println(id); 33 return "index"; 34 } 35 36 @RequestMapping("requestint_2")//http://localhost:8080/demo2/myController/requestint2.do 37 public String requestint_2(@RequestParam(value="id2",required=true)int id) {//value="id2"表示：更改参数别名，required=true表示：直接访问地址会报错，必须要转跳 38 System.out.println(id); 39 return "index"; 40 } 41 42 @RequestMapping("requestint2")//http://localhost:8080/demo2/myController/requestint2.do 43 public String requestint2(int id, int i) { 44 System.out.println(id + " " + i); 45 return "index"; 46 } 47 48 @RequestMapping("requestint3")//http://localhost:8080/demo2/myController/requestint3.do 49 public String requestint3(User user) { 50 System.out.println(user); 51 return "index"; 52 } 53 54 @RequestMapping("requestint4")//http://localhost:8080/demo2/myController/requestint4.do 55 public String requestint4(CustomUser customUser) { 56 System.out.println(customUser); 57 return "index"; 58 } 59 60 @RequestMapping("xiaostudy")//http://localhost:8080/demo2/myController/xiaostudy.do 61 public String add() { 62 return "xiaostudy"; 63 } 64 65 @RequestMapping("ok")//http://localhost:8080/demo2/myController/ok.do 66 public String ok(Model model) {//Model作用：用于回显数据 67 User user = new User(); 68 user.setId(2); 69 user.setUsername("xiaostudy"); 70 user.setPassword("123456"); 71 user.setAge(23); 72 model.addAttribute("user", user); 73 return "ok"; 74 } 75 76 @RequestMapping("id/{id}")//http://localhost:8080/demo2/myController/id/？.do 77 public String id(@PathVariable int id) {//@PathVariable：说明{id}是对参数的id 78 System.out.println(id); 79 return "index"; 80 } 81 82 @RequestMapping("test")//http://localhost:8080/demo2/myController/test.do 83 public String test() { 84 return "forward:index";//转发 85 } 86 87 @RequestMapping("test2")//http://localhost:8080/demo2/myController/test2.do 88 public String test2() { 89 return "redirect:index";//重定向 90 } 91 92 }
5、回显数据jsp
1 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> 2 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 3 "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>springMVC_demo</title> 8 </head> 9 <body> 10 ${user.id }||${user.username }||${user.password }||${user.age }<br/> 11 <a href="${pageContext.request.contextPath }/myController/id/${user.id}.do">id</a><br/> 12 <%-- <a href="${pageContext.request.contextPath }/rest/myController/id/${user.id}">id2</a><br/> --%> 13 </body> 14 </html>
项目文件结构
