joda time将10位或者13位时间戳转为标准日期格式: yyyy-MM-dd HH:mm:ss

<dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.9.9</version>
    </dependency>

public static String timestampToDate(@Comment("目标值")String timeString) {
        if( StringUtils.isBlank(timeString) ) {return "";}
        //10位时间戳需要补 "000"
        if(timeString.length() == 10){ timeString = timeString+"000"; }
        DateTime dateTime = new DateTime(Long.valueOf(timeString));
        return dateTime.toString("yyyy-MM-dd HH:mm:ss");
    }