使用 SolrJ 进行索引时出错

【问题标题】：Error when indexing with SolrJ使用 SolrJ 进行索引时出错
【发布时间】：2018-08-27 13:24:24
【问题描述】：

我正在尝试使用 SolrJ 为 Solr 索引一些数据。但是我有这个我无法解决的错误。 

Exception in thread "main" org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://localhost:8983/solr/#/corename: Expected mime type application/octet-stream but got text/html. <html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<title>Error 405  HTTP POST method is not supported by this URL</title>
</head>
<body><h2>HTTP ERROR 405</h2>
<p>Problem accessing /solr/index.html. Reason:
<pre>    Error 405  HTTP POST method is not supported by this URL</pre></p>
</body>
</html>

	at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:558)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:259)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:248)
	at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:149)
	at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:106)
	at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:71)
	at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:85)
	at indexsolr.index(indexsolr.java:33)
	at LoadData.toIndex(LoadData.java:102)
	at LoadData.loadDocuments(LoadData.java:72)
	at IndexLaunch.main(IndexLaunch.java:12)

这就是我的连接方式（我在本地）

SolrClient client = new HttpSolrClient.Builder("http://localhost:8983/solr/#/corename").build();
当我删除“#”时，它会引发 NullPointerException。我真的能明白为什么我有这些错误。请找出以下错误： 

Exception in thread "main" org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://localhost:8983/solr/corename: java.lang.NullPointerException
	at org.apache.solr.update.processor.AddSchemaFieldsUpdateProcessorFactory$AddSchemaFieldsUpdateProcessor.mapValueClassesToFieldType(AddSchemaFieldsUpdateProcessorFactory.java:509)
	at org.apache.solr.update.processor.AddSchemaFieldsUpdateProcessorFactory$AddSchemaFieldsUpdateProcessor.processAdd(AddSchemaFieldsUpdateProcessorFactory.java:396)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
	at org.apache.solr.update.processor.FieldMutatingUpdateProcessor.processAdd(FieldMutatingUpdateProcessor.java:118)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
	at org.apache.solr.update.processor.FieldMutatingUpdateProcessor.processAdd(FieldMutatingUpdateProcessor.java:118)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
	at org.apache.solr.update.processor.FieldMutatingUpdateProcessor.processAdd(FieldMutatingUpdateProcessor.java:118)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
	at org.apache.solr.update.processor.FieldMutatingUpdateProcessor.processAdd(FieldMutatingUpdateProcessor.java:118)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
	at org.apache.solr.update.processor.FieldNameMutatingUpdateProcessorFactory$1.processAdd(FieldNameMutatingUpdateProcessorFactory.java:75)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
	at org.apache.solr.update.processor.FieldMutatingUpdateProcessor.processAdd(FieldMutatingUpdateProcessor.java:118)
	at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:55)
	at org.apache.solr.update.processor.AbstractDefaultValueUpdateProcessorFactory$DefaultValueUpdateProcessor.processAdd(AbstractDefaultValueUpdateProcessorFactory.java:92)
	at org.apache.solr.handler.loader.JavabinLoader$1.update(JavabinLoader.java:98)
	at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readOuterMostDocIterator(JavaBinUpdateRequestCodec.java:188)
	at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readIterator(JavaBinUpdateRequestCodec.java:144)
	at org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:311)
	at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:256)
	at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readNamedList(JavaBinUpdateRequestCodec.java:130)
	at org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:276)
	at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:256)
	at org.apache.solr.common.util.JavaBinCodec.unmarshal(JavaBinCodec.java:178)
	at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec.unmarshal(JavaBinUpdateRequestCodec.java:195)
	at org.apache.solr.handler.loader.JavabinLoader.parseAndLoadDocs(JavabinLoader.java:108)
	at org.apache.solr.handler.loader.JavabinLoader.load(JavabinLoader.java:55)
	at org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:97)
	at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:177)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:2503)
	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:710)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:516)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:382)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:326)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1751)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
	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.session.SessionHandler.doHandle(SessionHandler.java:226)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
	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:119)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
	at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
	at org.eclipse.jetty.server.Server.handle(Server.java:534)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
	at java.lang.Thread.run(Thread.java:748)

	at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:590)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:259)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:248)
	at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:149)
	at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:106)
	at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:71)
	at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:85)
	at indexsolr.index(indexsolr.java:33)
	at LoadData.toIndex(LoadData.java:102)
	at LoadData.loadDocuments(LoadData.java:72)
	at IndexLaunch.main(IndexLaunch.java:12)

我已经为这个索引苦苦挣扎了一周......

【问题讨论】：

  • # 不应该在那里。是什么导致了 NPE？
  • 按照此说明操作：lucene.apache.org/solr/guide/7_2/…
  • @CliffWillsher 这是我删除 # 时遇到的错误（请查看帖子，我已编辑）
  • @HolgerThurow 好的，我会检查
  • 它显然在尝试更新。检查 SolrJ 的版本是否与 Solr 服务器的版本相同或非常接近。 SolrJ 使用二进制格式来交换数据，格式有时会因版本而异。

标签： apache indexing solr solrj


【解决方案1】：

正如 Cliff 所暗示的，URL 的 # 部分是本地锚点（仅由浏览器解释），不应成为 URL 的一部分。该 URL 仅供用于通过常规浏览器访问 Solr 的 Web 界面使用。

核心/集合的直接 URL 是：

http://localhost:8983/solr/corename

.. 但是 SolrJ 使用（并且在您链接的示例中显示）没有核心/集合名称的 URL：

final String solrUrl = "http://localhost:8983/solr";
return new HttpSolrClient.Builder(solrUrl)
    .withConnectionTimeout(10000)
    .withSocketTimeout(60000)
    .build();

.. 然后在添加时给出核心/集合名称：

final UpdateResponse updateResponse = client.add("techproducts", doc);

【讨论】：

  • 谢谢，但我不想查询而是索引。那么我该如何调整您的解决方案呢？
  • 您使用.add 而不是.query。这实际上是您所说的教程中显示的第一件事:-)
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