simpledateformat

Java SimpleDateFormat throwing ParseException: Unparseable date on Windows but not on Mac [duplicate]

由 岁酱吖の 提交于 2020-01-01 18:58:37
问题 This question already has answers here : Java - Unparseable date (2 answers) java.text.ParseException: Unparseable date: “01:19 PM” (6 answers) Closed 4 months ago . I have the following method: public static Date convertFromWowInterface(String wowinterfaceFormat){ Date date = null; try { SimpleDateFormat dateFormat = new SimpleDateFormat("MM-dd-yy hh:mm a"); date = dateFormat.parse(wowinterfaceFormat); } catch (ParseException e) { e.printStackTrace(); } return date; } The string being passed

简谈Java中常用的四种线程池

由 蓝咒 提交于 2019-12-31 23:13:15
newFixedThreadPool 首先，看一下这种线程池的创建方法： public static ExecutorService newFixedThreadPool(int nThreads) { return new ThreadPoolExecutor(nThreads, nThreads, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>()); } 从构造方法可以看出，它创建了一个固定大小的线程池，每次提交一个任务就创建一个线程，直到线程达到线程池的最大值 nThreads 。线程池的大小一旦达到最大值后，再有新的任务提交时则放入***阻塞队列中，等到有线程空闲时，再从队列中取出任务继续执行。 那么，如何使用 newFixedThreadPool 呢？我们来举个例子： public class OneMoreStudy { public static void main(String[] args) { ExecutorService fixedThreadPool = Executors.newFixedThreadPool(3); for (int i = 0; i < 5; i++) { final int index = i; fixedThreadPool.execute(new

Gson: java.text.ParseException: Unparseable date: “2018-04-09T09:00:00+02:00”

由 China☆狼群 提交于 2019-12-31 05:22:07
问题 How can I parse a string date in the format: "2018-04-09T09:00:00+02:00" Gson uses: new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US) But it gives the following exception: com.google.gson.JsonSyntaxException: 2018-04-09T09:00:00+02:00 at com.google.gson.DefaultDateTypeAdapter.deserializeToDate(DefaultDateTypeAdapter.java:107) at com.google.gson.DefaultDateTypeAdapter.deserialize(DefaultDateTypeAdapter.java:82) at com.google.gson.DefaultDateTypeAdapter.deserialize

nginx集群tomcat，session共享问题

由 心已入冬 提交于 2019-12-31 04:27:06
tomcat-redis-session-manager 版本： apache-tomcat-8.0.32、nginx-1.13.12、redis_3.2.1 github地址： https://github.com/mzd123/session_manager 读者可以直接下载体验一下。 实现： 1、下载：https://github.com/ran-jit/tomcat-cluster-redis-session-manager/wiki 2、解压之后。将jar包放入tomcat的lib中（注意是tomcat/lib中，不是我们自己项目的lib） 3、配置解压之后的redis-data-cache.properties（根据你的redis配置吧）。配置完将这个文件放入tomcat/conf文件夹中。 4、配置tomcat/cong/context.xml,增加如下两行。 <WatchedResource>WEB-INF/web.xml</WatchedResource> <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource> 5、注意：因为tomcat-redis-session-manager这个版本的不同，classname会随着变化，2.0.4的版本是叫这两个。其实可以打开你下载的tomcat

SimpleDateFormat时间格式

由 若如初见. 提交于 2019-12-31 02:09:54
注：代码执行当天时间为2019-12-30 24小时和12小时时间格式 //24小时和12小时时间格式 SimpleDateFormat sdfH = new SimpleDateFormat ( "yyyy-MM-dd HH:mm:ss" ) ; SimpleDateFormat sdfh = new SimpleDateFormat ( "yyyy-MM-dd hh:mm:ss" ) ; System . out . println ( "yyyy-MM-dd HH:mm:ss格式显示的时间为::" + sdfH . format ( new Date ( ) ) ) ; System . out . println ( "yyyy-MM-dd hh:mm:ss格式显示的时间为::" + sdfh . format ( new Date ( ) ) ) ; 运行结果： yyyy与YYYY //yyyy vs YYYY SimpleDateFormat sdfy = new SimpleDateFormat ( "yyyy-MM-dd" ) ; SimpleDateFormat sdfY = new SimpleDateFormat ( "YYYY-MM-dd" ) ; System . out . println ( "yyyy-MM-dd格式显示的时间为:" + sdfy .

how to add number of days to the date given in a jtextfield with string data type

由 天大地大妈咪最大 提交于 2019-12-31 01:41:21
问题 Good Day . I just wanna ask about adding days in a given date. I have a jtexfield (txtStart) and another jtexfield(txtExpiry). I need to display in txtExpiry the date after 102 days from the date in txtStart. I am using KEYRELEASED event. after i input in txtStart, the date with additional 102 days shall appear in txtExpiry. here's my code but it's still erroneous. private void txtStartKeyReleased(java.awt.event.KeyEvent evt) { // TODO add your handling code here: // set calendar to 1 Jan

how to add number of days to the date given in a jtextfield with string data type

由 故事扮演 提交于 2019-12-31 01:41:08
问题 Good Day . I just wanna ask about adding days in a given date. I have a jtexfield (txtStart) and another jtexfield(txtExpiry). I need to display in txtExpiry the date after 102 days from the date in txtStart. I am using KEYRELEASED event. after i input in txtStart, the date with additional 102 days shall appear in txtExpiry. here's my code but it's still erroneous. private void txtStartKeyReleased(java.awt.event.KeyEvent evt) { // TODO add your handling code here: // set calendar to 1 Jan

Android : Error SimpleDateFormat Unknown pattern character 'u'

由 我们两清 提交于 2019-12-30 11:16:15
问题 I use java 1.7.25 but found this error. what should I do? FATAL EXCEPTION: main java.lang.IllegalArgumentException: Unknown pattern character 'u' at java.text.SimpleDateFormat.validateFormat(SimpleDateFormat.java:264) at java.text.SimpleDateFormat.validatePattern(SimpleDateFormat.java:319) at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:365) at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:249) Here is my code public static int getDayNumberOfWeek(int day, String

Is it possible to get java.util.Date object with specific format?

由 别等时光非礼了梦想. 提交于 2019-12-30 11:12:07
问题 I would like to ask about the usage of java.util.Date. Here is my sample class public class DateConverter { public static void main(String[] args) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd/MM/yyyy"); Date today = new Date(); String dateAsString_format = simpleDateFormat.format(today); System.out.println("Formatted Date String (String datatype): " + dateAsString_format); Date parsedDate = null; try { parsedDate = simpleDateFormat.parse(dateAsString_format); } catch

Why am I getting a ParseException when using SimpleDateFormat to format a date and then parse it?

由 牧云@^-^@ 提交于 2019-12-30 08:22:49
问题 I have been debugging some existing code for which unit tests are failing on my system, but not on colleagues' systems. The root cause is that SimpleDateFormat is throwing ParseExceptions when parsing dates that should be parseable. I created a unit test that demonstrates the code that is failing on my system: import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.TimeZone; import junit.framework.TestCase;
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