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);
    }

}