本文介绍了Android解析String to Date - 未知模式字符'X'的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有服务从网络获取日期字符串，然后我想将其削减到日期对象。但不知何故应用程序崩溃。
这是我正在解析的字符串： 2015-02-05T05：20：02 + 00:00
I have Service fetch date string from web and then I want to pare it to Date object. But somehow application crashes.This is my string that I'm parsing: 2015-02-05T05:20:02+00:00
onStartCommand（）
String datetime = "2015-02-05T05:20:02+00:00";
Date new_date = stringToDate(datetime);
stringToDate（）
private Date stringToDate(String s){
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
try{
return df.parse(s);
}catch(ParseException e){
e.printStackTrace();
}
return null;
}
LogCat：
02-06 20:37:02.008: E/AndroidRuntime(28565): FATAL EXCEPTION: main
02-06 20:37:02.008: E/AndroidRuntime(28565): Process: com.dotmav.runescapenotifier, PID: 28565
02-06 20:37:02.008: E/AndroidRuntime(28565): java.lang.RuntimeException: Unable to start service com.dotmav.runescapenotifier.GEService@384655b5 with Intent { cmp=com.dotmav.runescapenotifier/.GEService }: java.lang.IllegalArgumentException: Unknown pattern character 'X'
02-06 20:37:02.008: E/AndroidRuntime(28565): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2881)
02-06 20:37:02.008: E/AndroidRuntime(28565): at android.app.ActivityThread.access$2100(ActivityThread.java:144)
02-06 20:37:02.008: E/AndroidRuntime(28565): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1376)
02-06 20:37:02.008: E/AndroidRuntime(28565): at android.os.Handler.dispatchMessage(Handler.java:102)
02-06 20:37:02.008: E/AndroidRuntime(28565): at android.os.Looper.loop(Looper.java:135)
02-06 20:37:02.008: E/AndroidRuntime(28565): at android.app.ActivityThread.main(ActivityThread.java:5221)
02-06 20:37:02.008: E/AndroidRuntime(28565): at java.lang.reflect.Method.invoke(Native Method)
02-06 20:37:02.008: E/AndroidRuntime(28565): at java.lang.reflect.Method.invoke(Method.java:372)
02-06 20:37:02.008: E/AndroidRuntime(28565): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
02-06 20:37:02.008: E/AndroidRuntime(28565): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
02-06 20:37:02.008: E/AndroidRuntime(28565): Caused by: java.lang.IllegalArgumentException: Unknown pattern character 'X'
02-06 20:37:02.008: E/AndroidRuntime(28565): at java.text.SimpleDateFormat.validatePatternCharacter(SimpleDateFormat.java:314)
02-06 20:37:02.008: E/AndroidRuntime(28565): at java.text.SimpleDateFormat.validatePattern(SimpleDateFormat.java:303)
02-06 20:37:02.008: E/AndroidRuntime(28565): at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:356)
02-06 20:37:02.008: E/AndroidRuntime(28565): at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:249)
02-06 20:37:02.008: E/AndroidRuntime(28565): at com.dotmav.runescapenotifier.GEService.stringToDate(GEService.java:68)
02-06 20:37:02.008: E/AndroidRuntime(28565): at com.dotmav.runescapenotifier.GEService.onStartCommand(GEService.java:44)
02-06 20:37:02.008: E/AndroidRuntime(28565): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2864)
02-06 20:37:02.008: E/AndroidRuntime(28565): ... 9 more
编辑： onDestroy（）为定期更新设置闹钟...
onDestroy() set alarm for periodical update...
AlarmManager alarm = (AlarmManager)getSystemService(ALARM_SERVICE);
alarm.set(
AlarmManager.RTC_WAKEUP,
System.currentTimeMillis() + (1000 * 60),
PendingIntent.getService(this, 0, new Intent(this, GEService.class), 0)
);
推荐答案
从
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
一切正常。
浏览可在 SimpleDateFormat 构造函数中使用的符号列表。这是
Go through the list of symbols that can be used inside a SimpleDateFormat constructor. This is the documentation
可能你正在寻找yyyy-MM-dd'T'HH：mm：ss.SSSZ
将您的代码更改为
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS");
或
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ"); // if timezone is required
这篇关于Android解析String to Date - 未知模式字符'X'的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！