为什么当我尝试将 Date 对象设置为在 Rhino 中执行的 JS 脚本时出现"Invalid Date"错误?



我不太喜欢JavaScript,在Rhino中执行简单的JavaScript代码时遇到了巨大的问题(https://developer.mozilla.org/it/docs/Rhino)这是一种允许在Java应用程序中执行JS代码的JavaScript实现。在我的特定案例中,Rhino嵌入到WSO2ESB(一种用Java开发的ESB工具)中。

我可以在Java\WSO2-ESB应用程序中执行JS代码,但在创建JavaScriptDate对象时遇到了一些问题。在这种情况下,它不起作用。

如果在我的JS代码中我有这样的东西:

var dateCurrentOriginalForecast = new Date('2017-11-09 06:00:00');

如果我在浏览器中执行它,但在Rhino中执行它时,我会在Java控制台中获得以下错误消息:

TID: [-1234] [] [2017-11-09 15:55:43,610]  INFO {org.apache.synapse.mediators.bsf.ScriptMessageContext} -  dateCurrentOriginalForecast: Invalid Date {org.apache.synapse.mediators.bsf.ScriptMessageContext}
TID: [-1234] [] [2017-11-09 15:55:43,610] ERROR {org.apache.synapse.mediators.bsf.ScriptMediator} -  The script engine returned an error executing the inlined js script function mediate {org.apache.synapse.mediators.bsf.ScriptMediator}
com.sun.phobos.script.util.ExtendedScriptException: org.mozilla.javascript.EcmaError: RangeError: Date is invalid. (<Unknown Source>#139) in <Unknown Source> at line number 139
at com.sun.phobos.script.javascript.RhinoCompiledScript.eval(RhinoCompiledScript.java:68)
at javax.script.CompiledScript.eval(CompiledScript.java:92)
at org.apache.synapse.mediators.bsf.ScriptMediator.mediateForInlineScript(ScriptMediator.java:345)
at org.apache.synapse.mediators.bsf.ScriptMediator.invokeScript(ScriptMediator.java:265)
at org.apache.synapse.mediators.bsf.ScriptMediator.mediate(ScriptMediator.java:233)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:97)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:260)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.mediateFromContinuationStateStack(Axis2SynapseEnvironment.java:775)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:282)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:554)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:188)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:262)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.mozilla.javascript.EcmaError: RangeError: Date is invalid. (<Unknown Source>#139)
at org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3687)
at org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3665)
at org.mozilla.javascript.NativeDate.toISOString(NativeDate.java:398)
at org.mozilla.javascript.NativeDate.execIdCall(NativeDate.java:384)
at org.mozilla.javascript.IdFunctionObject.call(IdFunctionObject.java:97)
at org.mozilla.javascript.optimizer.OptRuntime.callProp0(OptRuntime.java:85)
at org.mozilla.javascript.gen._Unknown_Source__1177._c_script_0(<Unknown Source>:139)
at org.mozilla.javascript.gen._Unknown_Source__1177.call(<Unknown Source>)
at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:394)
at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3091)
at org.mozilla.javascript.gen._Unknown_Source__1177.call(<Unknown Source>)
at org.mozilla.javascript.gen._Unknown_Source__1177.exec(<Unknown Source>)
at com.sun.phobos.script.javascript.RhinoCompiledScript.eval(RhinoCompiledScript.java:55)
... 16 more

我也尝试过其他格式,例如:

var dateCurrentOriginalForecast = new Date('2017-11-09 06:00:00');
var dateCurrentOriginalForecast = new Date('2017-11-09T06:00:00.000Z');
var dateCurrentOriginalForecast = new Date('2017-11-09T06:00:00');
var dateCurrentOriginalForecast = new Date('2017-11-09T06:00:00T');

但我仍然得到了同样的错误。

为什么?问题出在哪里?我错过了什么?Rhino适用的正确日期格式是什么?

与Date对象和Rhino类似的东西在这里,但没有解决方案:iOS/Android 2.2 中的Javascript无效日期

实际上这很奇怪。。。。

尝试使用明确的日期部分:

new Date(year, month, day [, hour, minute, second, millisecond ])
new Date('2017','11','09','06','00','00')

它有一个不同的Date实现。如果字符串的Date.parse返回NaN,则该字符串不被解释为有效日期,并且对new Date(string)的调用将返回date而不是InvalidDate

将字符串日期拆分并单独设置,或者生成符合Date要求的字符串日期。

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