Question

我的data-config.xml如下所示，我和solrconfig.xml一起保存在Conf文件夹中： -

<dataConfig>
    <dataSource name="Sample" driver="org.postgresql.Driver" url="jdbc:postgresql://localhost:5432/Sample" user="postgres" password="P@ssword">
        <document name="oneDocs">
            <entity dataSource="Sample" name="entity1" query="select FirstName from Employee">
                <field column="EmpId" name="EmpId" />
                <field column="FirstName" name="FirstName" />
                <field column="LastName" name="LastName" />
            </entity>
        </document>
    </dataSource>
</dataConfig>

我的solrconfig.xml如下： -

<requestHandler name="/dataimport"
    class="org.apache.solr.handler.dataimport.DataImportHandler">
    <lst name="defaults">
    <str name="config">data-config.xml</str>
    </lst>
    </requestHandler>

我还试图通过以下方式添加库： -

<lib dir="../../../contrib/extraction/lib" regex=".*\.jar" />
  <lib dir="../../../dist/" regex="solr-cell-\d.*\.jar" />

  <lib dir="../../../contrib/clustering/lib/" regex=".*\.jar" />
  <lib dir="../../../dist/" regex="solr-clustering-\d.*\.jar" />

  <lib dir="../../../contrib/dataimporthandler/lib/" regex=".*\.jar" />
  <lib dir="../../dist/" regex="solr-dataimporthandler-\d.*\.jar" />


  <lib dir="../../dist/" regex="postgresql-9.2-1002.jdbc3-\d.*\.jar" />

  <lib dir="../../../contrib/langid/lib/" regex=".*\.jar" />
  <lib dir="../../../dist/" regex="solr-langid-\d.*\.jar" />

  <lib dir="../../../contrib/velocity/lib" regex=".*\.jar" />
  <lib dir="../../../dist/" regex="solr-velocity-\d.*\.jar" />

  <!-- If a 'dir' option (with or without a regex) is used and nothing
       is found that matches, it will be ignored
    -->
  <lib dir="/total/crap/dir/ignored" />

我经常遇到同样的错误： -

org.apache.solr.handler.dataimport.DataImportHandlerException: Data Config problem: DataImportHandler configuration file must have one <document> node.
    at org.apache.solr.handler.dataimport.DataImporter.loadDataConfig(DataImporter.java:226)
    at org.apache.solr.handler.dataimport.DataImporter.maybeReloadConfiguration(DataImporter.java:124)
    at org.apache.solr.handler.dataimport.DataImportHandler.handleRequestBody(DataImportHandler.java:168)
    at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
    at org.apache.solr.core.SolrCore.execute(SolrCore.java:1797)
    at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:637)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:343)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:141)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
    at org.eclipse.jetty.server.Server.handle(Server.java:365)
    at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
    at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
    at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
    at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
    at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
    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)
Caused by: org.apache.solr.handler.dataimport.DataImportHandlerException: DataImportHandler configuration file must have one <document> node.
    at org.apache.solr.handler.dataimport.DataImporter.readFromXml(DataImporter.java:250)
    at org.apache.solr.handler.dataimport.DataImporter.loadDataConfig(DataImporter.java:223)
    ... 32 more

请帮助解决这个问题。这大部分时间都在吃掉。感谢

注意：我使用的是Postgres和Apache Tomcat 7以及Java 7.

Answer 1

您的 data-config.xml 存在缺陷。您已将文档元素包装到数据源元素中。两者都需要与dataConfig元素的直接子级处于同一级别。

这就是您发布的例外情况的原因：

Data Config问题：DataImportHandler配置文件必须具有一个节点。

XML解析器未将document元素作为dataConfig的子节点。

试试这样：

<dataConfig>
    <dataSource name="Sample" driver="org.postgresql.Driver" url="jdbc:postgresql://localhost:5432/Sample" user="postgres" password="P@ssword" />
    <document name="oneDocs">
       <entity dataSource="Sample" name="entity1" query="select FirstName from Employee">
            <field column="EmpId" name="EmpId" />
            <field column="FirstName" name="FirstName" />
            <field column="LastName" name="LastName" />
        </entity>
    </document>
</dataConfig>

Answer 2

在data-config.xml中，document元素应该是dataSource元素的兄弟，而不是孩子。

即它看起来应该是这样的;

<dataConfig>
  <dataSource>
    ..
  </dataSource>
  <document>
    ..
  </document>
</dataConfig>

Solr 4.2中的数据导入不起作用？

2 个答案: