spring boot get和post请求,以及requestbody为json串时候的处理

GET、POST方式提时， 根据request header Content-Type的值来判断:

•     application/x-www-form-urlencoded， 可选（即非必须，因为这种情况的数据@RequestParam, @ModelAttribute也可以处理，当然@RequestBody也能处理）；
•     multipart/form-data, 不能处理（即使用@RequestBody不能处理这种格式的数据）；
•     其他格式， 必须（其他格式包括application/json, application/xml等。这些格式的数据，必须使用@RequestBody来处理）；
  

代码:

package com.example.controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController;import com.example.bean.RequestLoginBean;import com.example.response.BaseResponse;import com.google.gson.Gson;@RestController@RequestMapping(value = "/index")public class Login {/** * index home *  * @return */@RequestMapping(value = "/home")public String home() {return "index home";}/** * 得到1个参数 *  * @param name *            用户名 * @return 返回结果 */@GetMapping(value = "/{name}")public String index(@PathVariable String name) {return "oh you are " + name + "<br> nice to meet you";// \n不起作用了,那就直接用html中的标签吧}/** * 简单post请求 *  * @param name * @param pwd * @return */@RequestMapping(value = "/testpost", method = RequestMethod.POST)public String testpost() {System.out.println("hello  test post");return "ok";}/** * 同时得到两个参数 *  * @param name *            用户名 * @param pwd *            密码 * @return 返回结果 */@GetMapping(value = "/login/{name}&{pwd}")public String login(@PathVariable String name, @PathVariable String pwd) {if (name.equals("admin") && pwd.equals("admin")) {return "hello welcome admin";} else {return "oh sorry user name or password is wrong";}}/** * 通过get请求去登陆 *  * @param name * @param pwd * @return */@RequestMapping(value = "/loginbyget", method = RequestMethod.GET)public String loginByGet(@RequestParam(value = "name", required = true) String name,@RequestParam(value = "pwd", required = true) String pwd) {return login4Return(name, pwd);}/** * 通过post请求去登陆 *  * @param name * @param pwd * @return */@RequestMapping(value = "/loginbypost", method = RequestMethod.POST)public String loginByPost(@RequestParam(value = "name", required = true) String name,@RequestParam(value = "pwd", required = true) String pwd) {System.out.println("hello post");return login4Return(name, pwd);}/** * 参数为一个bean对象.spring会自动为我们关联映射 * @param loginBean * @return */@RequestMapping(value = "/loginbypost1", method = { RequestMethod.POST, RequestMethod.GET })public String loginByPost1(RequestLoginBean loginBean) {if (null != loginBean) {return login4Return(loginBean.getName(), loginBean.getPwd());} else {return "error";}}/** * 请求内容是一个json串,spring会自动把他和我们的参数bean对应起来,不过要加@RequestBody注解 *  * @param name * @param pwd * @return */@RequestMapping(value = "/loginbypost2", method = { RequestMethod.POST, RequestMethod.GET })public String loginByPost2(@RequestBody RequestLoginBean loginBean) {if (null != loginBean) {return login4Return(loginBean.getName(), loginBean.getPwd());} else {return "error";}}/** * 对登录做出响应处理的方法 *  * @param name *            用户名 * @param pwd *            密码 * @return 返回处理结果 */private String login4Return(String name, String pwd) {String result;BaseResponse response = new BaseResponse();if (name.equals("admin") && pwd.equals("admin")) {result = "hello welcome admin";response.setState(true);} else {result = "oh sorry user name or password is wrong";response.setState(false);}System.out.println("收到请求,请求结果:" + result);return new Gson().toJson(response);}}