utc时间转换工具_utc时间转换_utc时间转换工具(2)

2018-05-23T16:05:52.123Z时间格式

String utcTime = "2018-05-23T16:05:52.123Z";
String utcTimePatten = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";
String localTimePatten = "yyyy-MM-dd HH:mm:ss";
2018-05-23T16:05:52.123Z
2018-05-24 00:05:52
Thu May 24 00:05:52 CST 2018
默认为GMT时区，显示的时间会加上本地时区的偏移（8 小时）

完整代码

import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
public class Test {
    public static void main(String[] arg) {
        String utcTime = "2018-05-23T16:05:52.123+08:00";
        String utcTimePatten = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
        String localTimePatten = "yyyy-MM-dd HH:mm:ss.SSS";
        System.out.println(utcTime);
        System.out.println(utc2Local(utcTime,utcTimePatten, localTimePatten));
        System.out.println(str2DateLong(utc2Local(utcTime,utcTimePatten, localTimePatten)));
    }
    public static Date str2DateLong(String strDate) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        ParsePosition pos = new ParsePosition(0);
        Date strtodate = formatter.parse(strDate, pos);
        return strtodate;
    }
    /**
     * 函数功能描述:UTC时间转本地时间格式
     * @param utcTime UTC时间
     * @param utcTimePatten UTC时间格式
     * @param localTimePatten   本地时间格式
     * @return 本地时间格式的时间
     * eg:utc2Local("2017-06-14T09:37:50.788+08:00", "yyyy-MM-dd'T'HH:mm:ss.SSSXXX", "yyyy-MM-dd HH:mm:ss.SSS")
     */
    public static String utc2Local(String utcTime, String utcTimePatten, String localTimePatten) {
        SimpleDateFormat utcFormater = new SimpleDateFormat(utcTimePatten);
        utcFormater.setTimeZone(TimeZone.getTimeZone("UTC"));//时区定义并进行时间获取
        Date gpsUTCDate = null;
        try {
            gpsUTCDate = utcFormater.parse(utcTime);
        } catch (ParseException e) {
            e.printStackTrace();
            return utcTime;
        }
        SimpleDateFormat localFormater = new SimpleDateFormat(localTimePatten);
        localFormater.setTimeZone(TimeZone.getDefault());
        String localTime = localFormater.format(gpsUTCDate.getTime());
        return localTime;
    }
}

参考：

https://segmentfault.com/a/1190000004292140

https://blog.csdn.net/angelasan/article/details/44917283。//http://blog.csdn.net/zmdsjtu/article/details/53454071。 * http://blog.csdn.net/fengshizty/article/details/53215196 。

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