Springboot2.x 统一json返回格式，并设置http响应码

参考

1. springboot 统一json返回格式

代码

1. 自定义响应类

@Data
public class ResponseBody<T> {
    public static final Integer SUCCESS = 0;
    public static final Integer ERROR = 1;
    protected Integer code      = 0;
    protected String  msg       = "";
    protected T  data;
    public ResponseBody(T data){
        this.setData(data);
    }
    public ResponseBody(Integer code){
        this.setCode(code);
    }
    public ResponseBody(Integer code, String msg){
        this.setCode(code);
        this.setMsg(msg);
    }

    public ResponseBody(T data, Integer code, String msg){
        this.setData(data);
        this.setCode(code);
        this.setMsg(msg);
    }
}

2. 测试

@RestController
@RequestMapping("v1/test")
public class Test {

    @Autowired
    StudentService studentService;

    @RequestMapping(value = "index", method = RequestMethod.GET)
    public ResponseEntity<ResponseBody<Student>> index(){
        return ResponseEntity.ok( new ResponseBody( studentService.findById(1)));
    }
//    public ResponseBody<Student> index(){
//        return new ResponseBody( studentService.findById(1));
//    }
}