SpringBoot Controller接收参数的几种常用方式

    @RequestMapping("/userInfo/{id}")
    public String userInfo(@PathVariable String id) {
        System.out.println(id);
        return id;
    }

    @RequestMapping("/userInfo")
    public String userInfo(@RequestParam(name = "id") String id) {
        System.out.println(id);
        return id;
    }

package com.example.helloworld.model;
public class User {
    private String id;
    private String name;
    private Notebook notebook;
    User(String id, String name) {
        this.id  = id;
        this.name = name;
        this.notebook = new Notebook();
    }
    public String getName() {
        return name;
    }
}

@RequestMapping("/userInfo")
    public String userInfo(User user) {
        System.out.println(user.getName());
        return user.getName();
    }

@RequestMapping("/problemBook")
    public String problemBook(String id, @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") LocalDateTime time) {
        System.out.println(id);
        System.out.println(time);
        return "OK";
    }

@PostMapping("/finishProblem")
    public String finishProblem(@RequestBody User user) {
        System.out.println(user.getName());
        return "OK";
    }

    @PostMapping("/finishProblem")
    public String finishProblem(@RequestBody Map<String, String> params) {
        System.out.println(params.get("uid"));
        System.out.println(params.get("problemId"));
        return "OK";
    }

package com.example.helloworld.controller;
/**
 * code response状态码
 * obj 返回给前端的数据
 * message 附加信息,说明具体情况
 */
public class Result {
    public int code;
    public String message;
    public Object data;
    public Result(int code, String message, Object data) {
        this.code = code;
        this.message = message;
        this.data = data;
    }
    public static Result success(Object data) {
        return new Result(200, "success", data);
    }
    public static Result success() {
        return new Result(200, "success", null);
    }
    public static Result error(String message) {
        return new Result(404, message, null);
    }
}