【JavaWeb基础】统一响应结果

待我称王封你为后i 2023-10-12 21:02 42阅读 0赞

**一、需求描述**

用类Result将要查询的数据封装在data中

public class Result {
        private Integer code;//1:成功，0：失败
        private String msg;//提示信息
        private Object data;//数据
        }

**二、代码展示及运行结果**

1、创建两个类

![2cc8e3e2f22c4cb983e872efc8d8c329.png][]

1）Result

package com.example.pojo;
    
    public class Result {
        private Integer code;//1:成功，0：失败
        private String msg;//提示信息
        private Object data;//数据
        public Result(){
    
        }
        public Result(Integer code,String msg,Object data){
            this.code=code;
            this.msg=msg;
            this.data=data;
        }
        public Integer getCode(){return code;}
        public void setCode(Integer code){this.code=code;}
        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 static Result success(Object data){
            return new Result(1,"success",data);
        }
        public static Result success(){
            return new Result(0,"success",null);
        }
        public static Result error(String msg){
            return new Result(0,msg,null);
        }
    
        @Override
        public String toString(){
            return "Result{"+
                    "code="+code+
                    ",msg="+msg+'\''+
                    ",data="+data+
                    "}";
        }
    }

2）ResponseController

package com.example.controller;
    
    import com.example.pojo.Result;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import java.util.ArrayList;
    import java.util.List;
    @RestController
    public class ResponseController {
        
        @RequestMapping("/hello")
        public Result hello() {
            System.out.println("Hello");
            //return new Result(1,"success","hello~");
            //或直接调用静态方法
            return Result.success("hello~");
        }
    
        @RequestMapping("/getAddr")
        public Result getAddr() {
            Address addr = new Address();
            addr.setProvince("广东");
            addr.setCity("广西");
            return Result.success(addr);
        }
    
        @RequestMapping("/listAddr")
        public Result listAddr() {
            List<Address> list = new ArrayList<>();
            Address addr = new Address();
            addr.setProvince("广东");
            addr.setCity("广西");
            Address addr2 = new Address();
            addr2.setProvince("云南");
            addr2.setCity("海南");
            list.add(addr);
            list.add(addr2);
            return Result.success(list);
        }
    
        class Address {
            public String setprovince;
            public String setcity;
    
            public void setProvince(String setprovince) {
                this.setprovince = setprovince;
            }
    
            public void setCity(String setcity) {
                this.setcity = setcity;
            }
        }
    }

2、在浏览器中打开[localhost:8080/listAddr][localhost_8080_listAddr]得

![45f22ef70f7d4c3cb027501082be3017.png][]

3、在postman中打开得

![df2938373afe4968a1a87a019b440717.png][]

4、其他链接运行情况同理

**三、其他**

1、HTTP响应状态码

![a0e11b6bb1a24ed3bd42b1c7d1d5b068.png][]2、HTTP相应格式

![f01b10436fc542d3aef7ad0cccf9854a.png][]

**四、参考教程**

[https://www.bilibili.com/video/BV1m84y1w7Tb?p=73&vd\_source=841fee104972680a6cac4dbdbf144b50][https_www.bilibili.com_video_BV1m84y1w7Tb_p_73_vd_source_841fee104972680a6cac4dbdbf144b50]

[2cc8e3e2f22c4cb983e872efc8d8c329.png]: https://img-blog.csdnimg.cn/2cc8e3e2f22c4cb983e872efc8d8c329.png
[localhost_8080_listAddr]: http://localhost:8080/listAddr
[45f22ef70f7d4c3cb027501082be3017.png]: https://img-blog.csdnimg.cn/45f22ef70f7d4c3cb027501082be3017.png
[df2938373afe4968a1a87a019b440717.png]: https://img-blog.csdnimg.cn/df2938373afe4968a1a87a019b440717.png
[a0e11b6bb1a24ed3bd42b1c7d1d5b068.png]: https://img-blog.csdnimg.cn/a0e11b6bb1a24ed3bd42b1c7d1d5b068.png
[f01b10436fc542d3aef7ad0cccf9854a.png]: https://img-blog.csdnimg.cn/f01b10436fc542d3aef7ad0cccf9854a.png
[https_www.bilibili.com_video_BV1m84y1w7Tb_p_73_vd_source_841fee104972680a6cac4dbdbf144b50]: https://www.bilibili.com/video/BV1m84y1w7Tb?p=73&vd_source=841fee104972680a6cac4dbdbf144b50