统一后端返回前端的json的数据格式

1. 定义enum类

enum类详解

package com.zhx.utils;

public enum ResultCode {

    SUCCESS(1,"成功"),
    /*参数错误*/
    PARAM_IS_INVALID(1001, "参数无效"),
    PARAM_IS_BLANK(1002,"参数为空"),
    PARAM_TYPE_BIND_ERROR(1003, "参数类型错误"),
    PARAM_NOT_COMPLETE(1004, "参数缺失"),
    /*用户错误: 2001-2999*/
    USER_NOT_LOGGED_IN(2001, "用户未登录,访问的路径需要验证，请登录") ,
    USER_LOGIN_ERROR(2002,"账号不存在或密码错误"),
    USER_ACCOUNT_FORBIDDEN(2003, "账号已被禁用"),
    USER_NOT_EXIST(2004, "用户不存在"),
    USER_HAS__EXISTED(2005, "用户已存在");


    private Integer code;
    private String msg;

    ResultCode(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    public Integer getCode() {
        return code;
    }

    public String getMsg() {
        return msg;
    }
}

2. 定义要返回的结果类

package com.zhx.utils;

public class ResponseResult {
    private Object data;
    private ResultCode resultCode;

    public ResponseResult(ResultCode resultCode, Object data) {
        this.resultCode = resultCode;
        this.data = data;
    }

    public ResponseResult() {

    }

    public static ResponseResult success(){
        ResponseResult responseResult = new ResponseResult();
        responseResult.setResultCode(ResultCode.SUCCESS);
        return responseResult;
    }

    public static ResponseResult success(Object data){
        ResponseResult responseResult = new ResponseResult();
        responseResult.setResultCode(ResultCode.SUCCESS);
        responseResult.setData(data);
        return responseResult;
    }

    public static ResponseResult failure(ResultCode resultCode){
        ResponseResult responseResult = new ResponseResult();
        responseResult.setResultCode(resultCode);
        return responseResult;
    }

    public static ResponseResult failure(ResultCode resultCode,Object data){
        ResponseResult responseResult = new ResponseResult();
        responseResult.setResultCode(resultCode);
        responseResult.setData(data);
        return responseResult;
    }

    public Object getData() {
        return data;
    }

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

    public ResultCode getResultCode() {
        return resultCode;
    }

    public void setResultCode(ResultCode resultCode) {
        this.resultCode = resultCode;
    }
}

3. 优化

 

posted @ 2021-10-08 23:55  木有呂朋友  阅读(288)  评论(0)  编辑  收藏  举报