Java日期对象自我转换为UTC错误

Question

这是我的代码：

此方法是数据的第一个入口

    private void parseAppAnalytics(JSONObject messageBody, String md5, String messageId) throws JSONException {
    String key = "Events";
    JSONArray appAnalyticsJsonArray = messageBody.getJSONArray(DataSetsConstants.APPANALYTICS);
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < appAnalyticsJsonArray.length(); i++) {
        JSONObject appAnalyticsJson = appAnalyticsJsonArray.getJSONObject(i);
        builder.append(messageId).append(COMMA);
        builder.append(md5).append(COMMA);
        builder.append(appAnalyticsJson.optString(DataSetsConstants.APPANALYTICS_GAID, "")).append(COMMA);
        builder.append(appAnalyticsJson.optString(DataSetsConstants.APPANALYTICS_APP_NAME, "")).append(COMMA);
        builder.append(appAnalyticsJson.optString(DataSetsConstants.APPANALYTICS_APP_VERSION, "")).append(COMMA);
        builder.append(appAnalyticsJson.optString(DataSetsConstants.APPANALYTICS_EVENT_NAME, "")).append(COMMA);
        builder.append(getDateFormatter(appAnalyticsJson.optString(DataSetsConstants.APPANALYTICS_EVENT_TIME, ""))).append(COMMA);
        builder.append(messageReceivedTS).append(COMMA);
        logger.debug("***In Parser: parse App Analytics: value: " + builder.toString());
        writeInFile(key, builder.toString());
        builder=new StringBuilder();
    }

}

它来到这里：

public final String getDateFormatter(String timeinms) {
    try {
        Long l = Long.parseLong(timeinms);
        Date date = new Date(l);
        DateFormat format = new SimpleDateFormat("YYYY-MM-dd HH:mm:ss.SSS");
        String date_time = format.format(date);
        return date_time;

当我使用日期对象转换为迄今为止的长毫秒（在当地时间）时，它会将时间零件转换为UTC，这在我的情况下是不可预见的。我需要停止此转换。与SimpleDateFormat有什么关系，我是否缺少某些内容？

Answer 1

您可以直接将长时间的米数字传递给格式（）方法

public final String getDateFormatter(String timeinms) {
try {
    Long l = Long.parseLong(timeinms);
    SimpleDateFormat format = new SimpleDateFormat("YYYY-MM-dd HH:mm:ss.SSS");
    sdf.setTimeZone(TimeZone.getTimeZone("GMT+0.00"));//put your timezone here otherwise use "GMT+0.00" for default GMT timezone
    String date_time = format.format(l);
    return date_time;
  }catch(Exception e){
  }
return "";
}