rest项目的基础返回类设计

package com.hmy.erp.api.vo;
 
import java.io.Serializable;
 
import lombok.Data;
 
/**
 * erp基本状态返回类
 *
 * @author WanHongLei
 * 2019年4月12日
 */
@Data
public class ErpBaseResult implements Serializable{
    private static final long serialVersionUID = -5669856511733166376L;
 
    public static final int SUCCESSCODE = ;
    public static final int FAILEDCODE = ;
 
    /**
     * 200 success
     * 999 failed
     */
    private Integer errCode;
 
    private String errMsg;
 
    private Object data;
 
    public static final ErpBaseResult SUCCESS = successWithData(null);
 
    public static final ErpBaseResult FAILED = failedWithData(null);
 
    public ErpBaseResult(){
        this.errCode = ;
        this.errMsg = "SUCCESS";
    }
 
    public ErpBaseResult(Integer errCode, String errMsg){
        this.errCode = errCode;
        this.errMsg = errMsg;
    }
 
    public ErpBaseResult(Integer errCode, String errMsg, Object obj){
        this.errCode = errCode;
        this.errMsg = errMsg;
        this.data = obj;
    }
 
    public static ErpBaseResult successWithData(Object obj){
        return new ErpBaseResult(,"SUCCESS", obj);
    }
 
    public static ErpBaseResult failedWithData(Object obj){
        return new ErpBaseResult(,"FAILED", obj);
    }
 
    public static ErpBaseResult failedWithMsg(String errMsg){
        return new ErpBaseResult(,errMsg);
    }
 
}