SpringMVC-RESTFul

RESTFul

一、基础概念

二、增删改查

配置web.xml，使可以使用PUT，DELETE

<!--    配置请求方法--><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>

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 </input type=“hidden” name=“_method” value=“PUT”>,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 </input type=“hidden” name=“_method” value=“DELETE”>,这样请求方法才变成DELETE