SpringMVC(八) RequestMapping HiddenHttpMethodFilter

SpringMVC隐藏方法：

使用PUT和DELETE方法。默认HTML支持GET和POST方法。通过HiddenHttpMethodFilter将POST转成PUT和DELETE方法。

1、将HiddenHttpMethodFilter配置到web.xml中

    <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>
    

2、控制器代码

package com.tiekui.springmvc.handlers;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
public class HiddenHttpMethodFilterTest {
    @RequestMapping(value="testHiddenHttpMethod/{id}",method=RequestMethod.DELETE)
    public String testHiddenHttpMethodDelete(@PathVariable("id") Integer id){
        System.out.println("Delete" + id);
        return "success";
    }
    
    @RequestMapping(value="testHiddenHttpMethod/{id}",method=RequestMethod.PUT)
    public String testHiddenHttpMethodPut(@PathVariable("id") Integer id){
        System.out.println("PUT" + id);
        return "success";
    }
    
}

3、视图代码

    <form action="testHiddenHttpMethod/1" method="post">
        <input type="hidden"  name="_method" value="PUT">
        <input type="submit" value="testHiddenHttpMethodPUT">
    </form>
    <br>
    <form action="testHiddenHttpMethod/1" method="post">
        <input type="hidden"  name="_method" value="DELETE">
        <input type="submit" value="testHiddenHttpMethodDelete">
    </form>