index.jsp文件：
<%@ 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> <form action="springmvc/testRest/1" method="post"> <input type="hidden" name="_method" value="PUT"/> <input type="submit" value="TestRest PUT"/> </form> <br><br> <form action="springmvc/testRest/1" method="post"> <input type="hidden" name="_method" value="DELETE"/> <input type="submit" value="TestRest DELETE"/> </form> <br><br> <form action="springmvc/testRest" method="post"> <input type="submit" value="TestRest POST"/> </form> <br><br> <a href="springmvc/testRest/1">Test Rest Get</a> </body> </html>
web.xml文件：
<?xml version="1.0" encoding="UTF-8"?> <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"> <!-- 配置 org.springframework.web.filter.HiddenHttpMethodFilter: 可以把 POST 请求转为 DELETE 或 PUT 请求 --> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置 DispatcherServlet --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 配置 DispatcherServlet 的一个初始化参数: 配置 SpringMVC 配置文件的位置和名称 --> <!-- 实际上也可以不通过 contextConfigLocation 来配置 SpringMVC 的配置文件, 而使用默认的. 默认的配置文件为: /WEB-INF/<servlet-name>-servlet.xml --> <!-- <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
controller类：
@RequestMapping("/springmvc")
@Controller
public class SpringMVCTest {
/**
Rest 风格的 URL:
以 CRUD 为例：
新增：/order POST
修改：/order/1 PUT
获取：/order/1 GET
删除：/order/1 DELETE
如何发送 PUT 请求和 DELETE 请求呢？
1.需要配置 HiddenHttpMethodFilter
2.需要发送 POST 请求
3.需要在发送 POST 请求时携带一个 name="_method" 的隐藏域，值为 DELETE 或 PUT
在 SpringMVC 的目标方法中如何得到 id 呢?
使用 @PathVariabl
*/
@RequestMapping(value = "/testRest/{id}", method = RequestMethod.PUT) public String testRestPut(@PathVariable Integer id) { System.out.println("testRest Put: " + id); return SUCCESS; } @RequestMapping(value = "/testRest/{id}", method = RequestMethod.DELETE) public String testRestDelete(@PathVariable Integer id) { System.out.println("testRest Delete: " + id); return SUCCESS; } @RequestMapping(value = "/testRest", method = RequestMethod.POST) public String testRest() { System.out.println("testRest POST"); return SUCCESS; } @RequestMapping(value = "/testRest/{id}", method = RequestMethod.GET) public String testRest(@PathVariable Integer id) { System.out.println("testRest GET: " + id); return SUCCESS; } }