package com.kyk.imoocmall.common;
import com.kyk.imoocmall.exception.ImoocMallExceptionEnum;
import lombok.Data;
/**
* 统一响应对象
* @FileName imooc-mall
* @Author keyongkang
* @Create 2022-11-25-10:47
*/
@Data
public class R<T> {
// 状态码
private Integer status;
// 消息
private String msg;
// 数据
private T data;
// 定义两个常量
private static final int OK_CODE = 10000;
private static final String OK_MSG = "SUCCESS";
/**
* 全参构造方法
* @param status
* @param msg
* @param data
*/
public R(Integer status, String msg, T data) {
this.status = status;
this.msg = msg;
this.data = data;
}
/**
* 两参的构造方法
* @param status
* @param msg
*/
public R(Integer status, String msg) {
this.status = status;
this.msg = msg;
}
/**
* 无参构造方法:默认成功
*/
public R() {
this(OK_CODE, OK_MSG);
}
/**
* 默认的响应成功
* @param <T>
* @return
*/
public static <T> R<T> success() {
return new R<>();
}
/**
* 响应成功并返回数据
* @param data
* @param <T>
* @return
*/
public static <T> R<T> success(T data) {
R<T> response = new R<>();
response.setData(data);
return response;
}
/**
* 响应错误,自定义响应码和消息
* @param code
* @param msg
* @param <T>
* @return
*/
public static <T> R<T> error(Integer code, String msg) {
return new R<>(code, msg);
}
/**
* 响应错误,传进来的是枚举对象
* @param ex
* @param <T>
* @return
*/
public static <T> R<T> error(ImoocMallExceptionEnum ex) {
return new R<>(ex.getCode(), ex.getMsg());
}
}
标签:status,return,对象,param,响应,msg,data,public,统一
From: https://www.cnblogs.com/keyongkang/p/16925002.html