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问答 MVC的Param中遇到自定义时间格式问题
发布于 2738天前 作者 elkan1788 2244 次浏览 复制 上一个帖子 下一个帖子
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尝试集成百度的webuploader，发现上传文件是时它会把图片最后修改时间带过来，不过问题是这个时间格式不是标准的，示例如下：

hu May 25 2017 07:16:32 GMT+0800 (CST)

详细的堆栈信息如下：

org.nutz.castor.FailToCastObjectException: 'Thu May 25 2017 07:16:32 GMT+0800 (CST)' to java.util.Date
	at org.nutz.castor.castor.DateTimeCastor.toDate(DateTimeCastor.java:17)
	at org.nutz.castor.castor.String2Datetime.cast(String2Datetime.java:12)
	at org.nutz.castor.castor.String2Datetime.cast(String2Datetime.java:5)
	at org.nutz.castor.Castors.cast(Castors.java:252)
	at org.nutz.mvc.adaptor.convertor.DateParamConvertor.convert(DateParamConvertor.java:39)
	at org.nutz.mvc.adaptor.injector.ObjectPairInjector.get(ObjectPairInjector.java:62)
	at org.nutz.mvc.adaptor.AbstractAdaptor.adapt(AbstractAdaptor.java:257)
	at org.nutz.mvc.upload.UploadAdaptor.adapt(UploadAdaptor.java:117)
	at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:28)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ActionFiltersProcessor.process(ActionFiltersProcessor.java:58)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ModuleProcessor.process(ModuleProcessor.java:123)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.EncodingProcessor.process(EncodingProcessor.java:27)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.UpdateRequestAttributesProcessor.process(UpdateRequestAttributesProcessor.java:15)
	at org.nutz.mvc.impl.NutActionChain.doChain(NutActionChain.java:44)
	at org.nutz.mvc.impl.ActionInvoker.invoke(ActionInvoker.java:67)
	at org.nutz.mvc.ActionHandler.handle(ActionHandler.java:31)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:202)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1613)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:541)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1584)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1228)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:481)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1130)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:118)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:564)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:318)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:112)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:122)
	at org.eclipse.jetty.util.thread.strategy.ExecutingExecutionStrategy.invoke(ExecutingExecutionStrategy.java:58)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:201)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:133)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: Unexpect date format 'Thu May 25 2017 07:16:32 GMT+0800 (CST)'
	at org.nutz.lang.Lang.makeThrow(Lang.java:132)
	at org.nutz.lang.Times.ams(Times.java:204)
	at org.nutz.lang.Times.ams(Times.java:118)
	at org.nutz.lang.Times.D(Times.java:321)
	at org.nutz.castor.castor.DateTimeCastor.toDate(DateTimeCastor.java:11)
	... 51 common frames omitted

如果这个@Param("..") Model要设计成自定义时间格式解析的话，应该在哪里修改默认的配置呢？

11 回复

在Model类的对应属性上标注 @Param

@Parma真是强大呀，不过加上了下面的注解，也还是一样出错，直接用SimpleDateFormat是可以正常解析出结果的。

@Param(value = "lastModifiedDate", dfmt = "EEE MMM dd yyyy hh:mm:ss 'GMT'Z (z)")

堆栈信息：

java.lang.RuntimeException: java.text.ParseException: Unparseable date: "Thu May 25 2017 07:16:32 GMT+0800 (CST)"
	at org.nutz.lang.Lang.wrapThrow(Lang.java:184)
	at org.nutz.lang.Times.parseq(Times.java:696)
	at org.nutz.mvc.adaptor.convertor.DateParamConvertor.convert(DateParamConvertor.java:35)
	at org.nutz.mvc.adaptor.injector.ObjectPairInjector.get(ObjectPairInjector.java:62)
	at org.nutz.mvc.adaptor.AbstractAdaptor.adapt(AbstractAdaptor.java:257)
	at org.nutz.mvc.upload.UploadAdaptor.adapt(UploadAdaptor.java:117)
	at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:28)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ActionFiltersProcessor.process(ActionFiltersProcessor.java:58)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ModuleProcessor.process(ModuleProcessor.java:123)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.EncodingProcessor.process(EncodingProcessor.java:27)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.UpdateRequestAttributesProcessor.process(UpdateRequestAttributesProcessor.java:15)
	at org.nutz.mvc.impl.NutActionChain.doChain(NutActionChain.java:44)
	at org.nutz.mvc.impl.ActionInvoker.invoke(ActionInvoker.java:67)
	at org.nutz.mvc.ActionHandler.handle(ActionHandler.java:31)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:202)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1613)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:541)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1584)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1228)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:481)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1130)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:118)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:564)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:318)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:112)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.text.ParseException: Unparseable date: "Thu May 25 2017 07:16:32 GMT+0800 (CST)"
	at java.text.DateFormat.parse(DateFormat.java:366)
	at org.nutz.lang.Times.parse(Times.java:728)
	at org.nutz.lang.Times.parseq(Times.java:693)
	... 44 common frames omitted

我写个testcase, SimpleDateFormat也解析不了吧?

    @Test
    public void long_long_time() throws ParseException {
        String fmt = "EEE MMM dd yyyy hh:mm:ss 'GMT'Z (z)";
        String time = "Thu May 25 2017 07:16:32 GMT+0800 (CST)";
        new SimpleDateFormat(fmt).parse(time); // 也是报错的
        //Times.parse(new SimpleDateFormat(fmt), time);
    }

不好意思，忘记贴上测试代码了，我加了个Timezone是可以正常解析的。

       String tmp = "Thu May 25 2017 07:16:32 GMT+0800 (CST)";
        SimpleDateFormat format = new SimpleDateFormat("EEE MMM dd yyyy hh:mm:ss 'GMT'Z (z)", Locale.ENGLISH);
        System.out.println(format.parse(tmp).toString());

哦, 需要指定时区, 那现有Param注解搞不定

不对.是地区

好吧，那就直接用String字符串，后端再转换一下吧， 谢谢。

报个issue呗, 然后就看看怎么扩展一下Param了

嗯嗯，已经提交issues1267

done, 提交了

看到了， Thanks.

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