SpringMVC-RESTFul

文章目录

  • RESTFul
    • 一、基础概念
    • 二、增删改查
      • 1.查询全部用户信息 (GET)
      • 2.根据id查询用户信息
      • 3.添加用户(POST)
      • 4.修改用户 (PUT)
      • 5.删除用户 (DELETE)

RESTFul

一、基础概念

SpringMVC-RESTFul_第1张图片

SpringMVC-RESTFul_第2张图片

二、增删改查

1.查询全部用户信息 (GET)

@RequestMapping(value = "/user",method = RequestMethod.GET)
    public String getAllUser()
    {
        System.out.println("获取全部用户信息");
        return "target";
    }

2.根据id查询用户信息

@RequestMapping(value = "/user/{id}",method = RequestMethod.GET)
    public String getUserById()
    {
        System.out.println("根据ID获取用户信息");
        return "target";
    }

3.添加用户(POST)

@RequestMapping(value = "/user",method = RequestMethod.POST)
    public String addUser(String username,String password)
    {
        System.out.println(username+","+password);
        return "target";
    }

4.修改用户 (PUT)

@RequestMapping(value = "/user",method = RequestMethod.PUT)
    public String updateUser(String username,String password)
    {
        System.out.println("修改信息");
        return "target";
    }
<form th:action="@{/user}" method="post">
    <input type="hidden" name="_method" value="PUT">
    用户名<input name="username" type="text"><br>
    密码<input type="password" name="password"> <br>
    <input type="submit" value="修改">
form>

注意添加这个后 ,这样请求方法才变成PUT

5.删除用户 (DELETE)

 @RequestMapping(value = "/user/{id}",method = RequestMethod.DELETE)
    public String deleteUser()
    {
        System.out.println("删除信息");
        return "target";
    }
<form th:action="@{/user/1}" method="post">
    <input type="hidden" name="_method" value="DELETE">
    用户名<input name="username" type="text"><br>
    密码<input type="password" name="password"> <br>
    <input type="submit" value="删除">
form>

注意 ,这样请求方法才变成DELETE

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