SpringBoot 中 get/post 请求处理方式,以及requestboy为Json时的处理

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);
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);  
    }  
}  

 

posted @ 2018-04-12 18:06  zacky31  阅读(3300)  评论(0编辑  收藏  举报