java - dateTimeFormat 的有效掩码模式

Question

我得到了使用 dateTimeFormat 函数的代码。最初的开发者使用了“MM-HH-YY-dd-NN”的掩码。此代码可在他的机器上运行。它适用于我们的测试服务器。但它在我的本地机器上不起作用。我只有将掩码更改为“MM-HH-yy-dd-NN”才能使其工作；

注意这里的区别是大写的“YY”和小写的“yy”

在 https://wikidocs.adobe.com/wiki/display/coldfusionen/DateTimeFormat 查看文档看起来小写的 yy 是官方支持的做事方式。

有谁知道为什么 YY 在某些情况下会得到支持，而在其他情况下却不会？我怀疑它可能是某处的一些本地化代码，但我没有发现我的 CF 管理员和测试服务器上的管理员有任何区别。我可以在我的机器上做些什么来让 YY 工作吗？

我的机器是在 Mac 上运行的 Windows 7 虚拟机，而服务器是 Windows Server 2008。

我的 JVM 是 1.6.0_29 而服务器运行的是 1.7.0

这些差异是否足以解释问题？

下面是一些简单的测试代码:

<cfscript>
    testTime=now();
    lowermask= "MM-HH-yy-dd-NN";
    uppermask= "MM-HH-YY-dd-NN";
    result = {
        lower=dateTimeFormat(testTime, lowermask)
        ,upper=dateTimeFormat(testTime, uppermask)
    };
    writedump(result);
</cfscript>

看起来问题出在底层 Java 版本中。我得到的错误是:

java.lang.IllegalArgumentException: Illegal pattern character 'Y'
    at java.text.SimpleDateFormat.compile(SimpleDateFormat.java:768)
    at java.text.SimpleDateFormat.initialize(SimpleDateFormat.java:575)
    at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:500)
    at coldfusion.util.DateUtils.getCFDateTimeFormat(DateUtils.java:673)
    at coldfusion.util.DateUtils.formatDateTime(DateUtils.java:942)
    at coldfusion.runtime.CFPage.LSDateTimeFormat(CFPage.java:1750)
    at coldfusion.runtime.CFPage.LSDateTimeFormat(CFPage.java:1742)
    at coldfusion.runtime.CFPage.DateTimeFormat(CFPage.java:1722)
    at cftemp2ecfm333879290.runPage(C:\inetpub\wwwroot\temp.cfm:7)
    at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:244)
    at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:444)
    at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
    at coldfusion.filter.IpFilter.invoke(IpFilter.java:64)
    at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:449)
    at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
    at coldfusion.filter.PathFilter.invoke(PathFilter.java:112)
    at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:94)
    at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:79)
    at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
    at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
    at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:58)
    at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
    at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
    at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)
    at coldfusion.CfmServlet.service(CfmServlet.java:219)
    at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
    at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:414)
    at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:204)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:298)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)

Answer 1

Java 已经改变了。 ColdFusion 不在乎。它直接传递掩码参数。

• Java 6 docs说它只支持y

• Java 7 docs说它同时支持 y 和 Y

Java 7 文档中的一些亮点

Capital Y is a "week year"

A week year is in sync with a WEEK_OF_YEAR cycle. All weeks between the first and last weeks (inclusive) have the same week year value. Therefore, the first and last days of a week year may have different calendar year values.

If week year 'Y' is specified and the calendar doesn't support any week years, the calendar year ('y') is used instead.