java后台通用返回消息工具類<記錄>

直接上代碼

package com.yikesong.favourablelife.utils;

import java.io.Serializable;

/**
 * 通用返回消息
 *
 * @Author 黃超
 * @Date 2019/5/5 17:44
 */
public class Result implements Serializable {
    // 結果標記(true:執行成功 false:執行失敗)
    private Boolean flag;
    // 消息狀態碼
    private Integer code;
    // 消息
    private String msg;
    // 返回數據
    private Object data;

    private Result(Boolean flag, Integer code, String msg, Object data) {
        this.flag = flag;
        this.code = code;
        this.msg = msg;
        this.data = data;
    }

    /**
     * 響應成功(帶返回數據)
     * @param data 返回數據
     * @return Result
     */
    public static Result success(Object data){
        return new Result(true,2000,"響應成功",data);
    }

    /**
     * 響應成功
     * @return Result
     */
    public static Result success(){
        return new Result(true,2000,"響應成功",null);
    }

    /**
     * 響應錯誤(不帶狀態碼,帶消息)
     * @return Result
     */
    public static Result error(String msg){
        return new Result(false,2400,msg,null);
    }

    /**
     * 響應錯誤(帶錯誤碼,消息提醒)
     * @return
     */
    public static Result errorMsg(Integer code,String msg){
        return new Result(false,code,msg,null);
    }

    public Boolean getFlag() {
        return flag;
    }

    public void setFlag(Boolean flag) {
        this.flag = flag;
    }

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

}

 使用如下Controller層:

    /**
     * 條件查詢輪播圖
     *
     * @param addBannerDto 輪播圖請求dto
     * @return Result
     */
    @RequiresPermissions(Role.AGENT)
    @PostMapping("/search")
    public Result searchBanner(String userId, @RequestBody AddBannerDto addBannerDto) {
        List<CityBanner> banners = bannerService.searchBanner(userId, addBannerDto);
        return Result.success(banners);
    }