restApi

package com.example.springboot2.controller;

import com.example.springboot2.pojo.Student;
import com.example.springboot2.util.JSONResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.util.Map;

@RestController
@RequestMapping("stu")
@Slf4j
public class StuController {
    @GetMapping("{stuId}/get")
    public String getStu(@PathVariable("stuId") String stuId,
                         @RequestParam Integer id,
                         @RequestParam String name){
        log.info("stuId="+stuId);
        log.info("id="+id);
        log.info("name="+name);
        return "查询stuId";
    }

    @PostMapping("create")
    public String createStu(@RequestBody Map<String, Object> map,
                            @RequestHeader("token") String token,
                            @CookieValue("clientId") String clientId,
                            HttpServletRequest request) {
        log.info("token=" + token);
        log.info("clientId=" + clientId);
        log.info("map=" + map.toString());

        String headerToken = request.getHeader("token");
        log.info("token=" + headerToken);
        return "新增Stu";
    }

    @PutMapping("update")
    public String updateStu(){
        return "修改Stu";
    }

    @DeleteMapping("delete")
    public String deleteStu(){
        return "删除Stu";
    }
}

接收参数

• @PathVariable: path上的参数
• @RequestParam: query的参数

• @RequestBody: 接收请求体参数
• @RequestHeader: 接收请求头参数
• @CookieValue： 接收cookie
• HttpServletRequest:

响应数据

增加pojo

package com.example.springboot2.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;

@Data
@ToString
@NoArgsConstructor
@AllArgsConstructor
public class Student {
    public String name;
    public Integer age;
}

增加JSONResult工具类

package com.example.springboot2.util;

public class JSONResult {

    // 响应业务状态
    private Integer status;

    // 响应消息
    private String msg;

    // 响应中的数据
    private Object data;

    private String ok;    // 不使用

    public static JSONResult build(Integer status, String msg, Object data) {
        return new JSONResult(status, msg, data);
    }

    public static JSONResult build(Integer status, String msg, Object data, String ok) {
        return new JSONResult(status, msg, data, ok);
    }

    public static JSONResult ok(Object data) {
        return new JSONResult(data);
    }

    public static JSONResult ok() {
        return new JSONResult(null);
    }

    public static JSONResult errorMsg(String msg) {
        return new JSONResult(500, msg, null);
    }

    public static JSONResult errorUserTicket(String msg) {
        return new JSONResult(557, msg, null);
    }

    public static JSONResult errorMap(Object data) {
        return new JSONResult(501, "error", data);
    }

    public static JSONResult errorTokenMsg(String msg) {
        return new JSONResult(502, msg, null);
    }

    public static JSONResult errorException(String msg) {
        return new JSONResult(555, msg, null);
    }

    public static JSONResult errorUserQQ(String msg) {
        return new JSONResult(556, msg, null);
    }

    public JSONResult() {

    }

    public JSONResult(Integer status, String msg, Object data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    public JSONResult(Integer status, String msg, Object data, String ok) {
        this.status = status;
        this.msg = msg;
        this.data = data;
        this.ok = ok;
    }

    public JSONResult(Object data) {
        this.status = 200;
        this.msg = "OK";
        this.data = data;
    }

    public Boolean isOK() {
        return this.status == 200;
    }

    public Integer getStatus() {
        return status;
    }

    public void setStatus(Integer status) {
        this.status = status;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

    public String getOk() {
        return ok;
    }

    public void setOk(String ok) {
        this.ok = ok;
    }
}

测试

controller

    @GetMapping("getStudent")
    public JSONResult getStudent(){
       Student stu =  new Student();
       stu.setName("bbb");
       stu.setAge(10);

       Student stu2 = new Student("ccc",30);
       log.debug(stu.toString());
        log.debug(stu.toString());
        log.debug(stu.toString());
        log.debug(stu.toString());
        return JSONResult.ok(stu);
//        return JSONResult.errorMsg("调用接口错误");
    }

响应的数据