Java设计RestfulApi接口，实现统一格式返回

package com.sunny.tool.api.enums;
/**
* @Author sunt
* @Description 响应枚举状态码
* @Date 2019/10/31
**/
public enum ResultCode {
// 成功
SUCCESS(200),
// 失败
FAIL(400),
// 未认证（签名错误）
UNAUTHORIZED(401),
// 接口不存在
NOT_FOUND(404),
// 服务器内部错误
INTERNAL_SERVER_ERROR(500);
public int code;
ResultCode(int code) {
this.code = code;
}
}

package com.sunny.tool.api.entity;
import com.sunny.tool.api.enums.ResultCode;
/**
* @ClassName: ResponseResult
* @Description: 返回结果集封装
* @Author: sunt
* @Date: 2019/10/31 16:11
* @Version 1.0
**/
public class ResponseResult {
public int code; //返回状态码200成功
private String msg; //返回描述信息
private T data; //返回内容体
public ResponseResult setCode(ResultCode retCode) {
this.code = retCode.code;
return this;
}
public int getCode() {
return code;
}
public ResponseResult setCode(int code) {
this.code = code;
return this;
}
public String getMsg() {
return msg;
}
public ResponseResult setMsg(String msg) {
this.msg = msg;
return this;
}
public T getData() {
return data;
}
public ResponseResult setData(T data) {
this.data = data;
return this;
}
}

package com.sunny.tool.api.entity;
import com.sunny.tool.api.enums.ResultCode;
/**
* @ClassName: Response
* @Description:将结果转换为封装后的对象
* @Author: sunt
* @Date: 2019/10/31 16:11
* @Version 1.0
**/
public class Response {
private final static String SUCCESS = "success";
private final static String FAIL = "fail";
public static ResponseResult makeOKRsp() {
return new ResponseResult().setCode(ResultCode.SUCCESS).setMsg(SUCCESS);
}
public static ResponseResult makeOKRsp(String message) {
return new ResponseResult().setCode(ResultCode.SUCCESS).setMsg(message);
}
public static ResponseResult makeOKRsp(T data) {
return new ResponseResult().setCode(ResultCode.SUCCESS).setMsg(SUCCESS).setData(data);
}
public static ResponseResult makeErrRsp(String message) {
return new ResponseResult().setCode(ResultCode.INTERNAL_SERVER_ERROR).setMsg(message);
}
public static ResponseResult makeRsp(int code, String msg) {
return new ResponseResult().setCode(code).setMsg(msg);
}
public static ResponseResult makeRsp(int code, String msg, T data) {
return new ResponseResult().setCode(code).setMsg(msg).setData(data);
}
}