Maven 

Lombok项目是一个Java库，它会自动插入您的编辑器和构建工具中，从而为您的Java增光添彩。

永远不要再编写另一个getter或equals方法，带有一个注释的类将具有功能全面的生成器，自动执行日志记录变量等等。 

        org.projectlomboklomboktrue

源代码

package com.zstu.metrocity.dto;import lombok.Data;/*** @Author ShenTuZhiGang* @Version 1.0.0* @Date 2020-02-10 12:51*/
@Data
public class ResponseBean {private Integer status;private String msg;private Object data;public static ResponseBean build() {return new ResponseBean();}public static ResponseBean ok(String msg) {return new ResponseBean(200, msg, null);}public static ResponseBean ok(String msg, Object obj) {return new ResponseBean(200, msg, obj);}public static ResponseBean error(String msg) {return new ResponseBean(500, msg, null);}public static ResponseBean error(String msg, Object obj) {return new ResponseBean(500, msg, obj);}private ResponseBean() {}private ResponseBean(Integer status, String msg, Object obj) {this.status = status;this.msg = msg;this.data = obj;}
}

基于Builder模式

import com.*.web.common.ResponseBeanMessage;
import lombok.Builder;
import lombok.Data;import java.io.Serializable;/*** Response Bean* @author ShenTuZhiGang* @version 1.1.0* @date 2020-02-10 12:51*/
@Data
@Builder
public class ResponseBean implements Serializable {private Integer status;private String msg;private Object data;public static ResponseBean success(){return success(ResponseBeanMessage.SUCCESS);}public static ResponseBean success(String msg) {return success( msg, null);}public static ResponseBean success(Object obj){return success(ResponseBeanMessage.SUCCESS,obj);}public static ResponseBean success(String msg, Object obj) {return new ResponseBean(200, msg, obj);}public static ResponseBean ok(String msg) {return success(msg);}public static ResponseBean ok(String msg, Object obj){return success(msg,obj);}public static ResponseBean error(){return error(ResponseBeanMessage.ERROR);}public static ResponseBean error(String msg) {return error(msg, null);}public static ResponseBean error(Object obj) {return new ResponseBean(500,ResponseBeanMessage.ERROR, obj);}public static ResponseBean error(String msg, Object obj) {return new ResponseBean(500, msg, obj);}private ResponseBean() {}public ResponseBean(Integer status) {this.status = status;}public ResponseBean(Integer status, String msg) {this.status = status;this.msg = msg;}private ResponseBean(Integer status, String msg, Object obj) {this.status = status;this.msg = msg;this.data = obj;}
}

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