Java返回数据上传过了多长时间

    //返回上传时间
    static String timeString(Date createTime){
//    static String timeString(){

        //将传入的时间参数转成时间戳（秒）
        long timeLong = createTime.getTime() / 1000;
//        long timeLong = 1601088155;

        //查看传入的时间戳与当前时间的差值（秒）
        long timeDifference = ((new Date()).getTime() / 1000) - timeLong;

        //一小时之内的返回值
        if (timeDifference >= 0 && timeDifference < 60 * 60){
            Long returnTime = timeDifference / 60;
            if (returnTime == 0){
                return "刚刚上传";
            }
            return returnTime + "分钟前上传";
        }

        //一小时之后到一天之间
        if (timeDifference >= 60 * 60 && timeDifference < 60 * 60 * 24 ){
            long returnTime = timeDifference / (60 * 60);
            return returnTime + "小时前上传";
        }

        //一天到一周之间
        if (timeDifference >= 60 * 60 * 24 && timeDifference < 60 * 60 * 24 * 7){
            long returnTime = timeDifference / (60 * 60 * 24);
            return returnTime + "天前上传";
        }

        //一周到一个月之间
        if (timeDifference >= 60 * 60 * 24 * 7 && timeDifference < 60 * 60 * 24 * 30){
            long returnTime = timeDifference / (60 * 60 * 24 * 7);
            return returnTime + "周前上传";
        }

        //一个月到一年之间
        if (timeDifference >= 60 * 60 * 24 * 30 && timeDifference < 60 * 60 * 24 * 365){
            long returnTime = timeDifference / (60 * 60 * 24 * 30);
            //规范写的是一个模糊值 12进行判断为11月前
            if (returnTime == 12){
                return "11月前上传";
            }
            return returnTime + "月前上传";
        }

        //一年即一年之后
        if (timeDifference >= 60 * 60 * 24 * 365){
            long returnTime = timeDifference / (60 * 60 * 24 * 365);
            return returnTime + "年前上传";
        }

        return "";
    }