<filter>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <servlet-name>DispatcherServlet</servlet-name>
  </filter-mapping>

  <servlet>
    <servlet-name>DispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath*:spring-mvc.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>DispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

<form action="/rest/rest/100" method="post">
    <input type="hidden" name="_method" value="put">
    <input type="submit">
</form>

package com.xysf.controller;

import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestMapping;

//@Controller
//@ResponseBody
@org.springframework.web.bind.annotation.RestController
@RequestMapping("rest")
public class RestController {
    @RequestMapping("rest1")
    public String  rest1(){
        return "save.jsp";
    }
    @RequestMapping("{id}")
    public String  rest1(@PathVariable Integer id){
        System.out.println("变量:"+id);
        return "save.jsp";
    }
    @PutMapping("{id}")
    public String  rest2(@PathVariable Integer id){
        System.out.println("变量:"+id);
        System.out.println("put");
        return "save.jsp";
    }
}