统一返回封装数据类

import cn.hutool.core.date.DateUtil;


public class R {

    private boolean success = true;//成功还是失败
    private Integer code = 200;//状态码
    private String message = "";//信息
    private Object resultObj = null;//数据
    private String timestamp = DateUtil.now();//时间戳 yyyy-MM-dd HH:mm:ss
    //实例对象
    public static R INSTANCE = new R();

    //成功返回
    public R ok(){
        return this;
    }

    public R ok(Object resultObj){
        this.resultObj = resultObj;
        return this;
    }

    //失败返回
    public R error(String message){
        this.success = false;
        this.code = 500;//默认错误码500
        this.message = message;
        return this;
    }

    public R error(Integer code,String message){
        this.success = false;
        this.code = code;
        this.message = message;
        return this;
    }

    
    public boolean isSuccess() {
        return success;
    }

    public R setSuccess(boolean success) {
        this.success = success;
        return this;
    }

    public Integer getCode() {
        return code;
    }

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

    public String getMessage() {
        return message;
    }

    public R setMessage(String message) {
        this.message = message;
        return this;
    }

    public Object getResultObj() {
        return resultObj;
    }

    public R setResultObj(Object resultObj) {
        this.resultObj = resultObj;
        return this;
    }

    @Override
    public String toString() {
        return "R{" +
                "success=" + success +
                ", code=" + code +
                ", message='" + message + ''' +
                ", resultObj=" + resultObj +
                ", timestamp='" + timestamp + ''' +
                '}';
    }
}

注：
日期字段默认系统当前时间yyyy-MM-dd HH:mm:ss格式，依赖于hutool工具包，也可以使用自己的写法