在Java中解析大量日期时,我偶尔会遇到这个奇怪的错误:
java.lang.NumberFormatException: For input string: ".201144E4.201144E4"
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1250)
at java.lang.Double.parseDouble(Double.java:540)
at java.text.DigitList.getDouble(DigitList.java:168)
at java.text.DecimalFormat.parse(DecimalFormat.java:1321)
at java.text.SimpleDateFormat.subParse(SimpleDateFormat.java:1793)
at java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1455)
at java.text.DateFormat.parse(DateFormat.java:355)
at gameloop.tf2tradebot.user.UserManager.getUser(UserManager.java:102)
at gameloop.tradebot2.bot.weaponbot1.Weaponbot1.onMessageReceived(Weaponbot1.java:269)
at gameloop.api.steam.chat.ChatEvent.run(ChatEvent.java:49)
at java.lang.Thread.run(Thread.java:745)
在这种情况下,日期是:
2014-12-13 06:56:27
日期格式为:
private static final DateFormat STANDARD_DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.ENGLISH);
我的代码:
Date firstSeenDate = null;
try
{
firstSeenDate = STANDARD_DATE_FORMAT.parse(firstSeen);
}
catch(Exception pe)
{
pe.printStackTrace();
logger.outputError(4001, "Error parsing first seen date. Shutting down...");
logger.outputError(4001, "First seen date : \'" + firstSeen + "\'");
CH405BotServer.shutdown(logger.getCallerName(), "an error in parsing first seen date");
}
user.setFirstSeen(firstSeenDate);
源数据:
isadmin = false
firstseen = 2014-12-13 06:56:27
lastseen = 2014-12-13 06:56:27
numtrades = 0
编辑: 错误日志中的字符串看起来完全正常:
(ERROR 4001) Error parsing first seen date. Shutting down...
(ERROR 4001) Last seen date : '2014-12-13 06:56:27'
我需要帮助解决这个问题。
".201144E45.201144E4"
的数据,这显然不是yyyy-MM-dd HH:mm:ss
格式的日期/时间。不幸的是,你没有告诉我们数据从哪里来。 - Jon SkeetDateFormat
移到局部变量,然后再试一次。 - jmj