我是 Solr 的新手。我成功地索引了一些数据，但是在将日期属性传递给适当的 solr 字段后，我收到了一个异常：
我正在传递字符串“15.06.2011 13:51:41”，这是德国等国家的常用日期格式。但是，经过一番谷歌搜索后，我发现 Solr 期望日期为 UTC 格式。
我的具体问题是：我可以在 Solr 的某个时间点将我的格式转换为 UTC 吗？这会是 DateFormatTransformer 的情况，还是必须最初以正确的格式传递它？
编辑：我没有使用 DataImportHandler。我通过将数据直接传递给 Solr 来使用 DirectUpdateHandler2。既然它被称为“直接更新”，那么我在那里转换任何东西的机会很糟糕吗？
对于记录，我得到的例外是：
ERROR - 2013-09-13 15:52:07.705; org.apache.solr.common.SolrException; org.apache.solr.common.SolrException: Invalid Date String:'15.06.2011 13:51:41'
at org.apache.solr.schema.DateField.parseMath(DateField.java:182)
at org.apache.solr.schema.TrieField.createField(TrieField.java:616)
at org.apache.solr.schema.TrieField.createFields(TrieField.java:655)
at org.apache.solr.schema.TrieDateField.createFields(TrieDateField.java:157)
at org.apache.solr.update.DocumentBuilder.addField(DocumentBuilder.java:47)
at org.apache.solr.update.DocumentBuilder.toDocument(DocumentBuilder.java:118)
at org.apache.solr.update.AddUpdateCommand.getLuceneDocument(AddUpdateCommand.java:73)
at org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:210)
at org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:69)
at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:51)
at org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalAdd(DistributedUpdateProcessor.java:556)
at org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:692)
at org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:435)
at org.apache.solr.update.processor.LogUpdateProcessor.processAdd(LogUpdateProcessorFactory.java:100)
at org.apache.solr.handler.extraction.ExtractingDocumentLoader.doAdd(ExtractingDocumentLoader.java:121)
at org.apache.solr.handler.extraction.ExtractingDocumentLoader.addDoc(ExtractingDocumentLoader.java:126)
at org.apache.solr.handler.extraction.ExtractingDocumentLoader.load(ExtractingDocumentLoader.java:228)
at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:74)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.handleRequest(RequestHandlers.java:241)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1904)
at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:659)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:362)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:158)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:368)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:942)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1004)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:636)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Unknown Source)