找不到 Solr DataImportHandler [英] Solr DataImportHandler not found

问题描述

我在 Tomcat 6.0 中使用 Solr 3.3.0.26.我能够成功安装 Solr，我什至能够使用 http://localhost:8084/solr/admin 访问其 Web 界面.

I am using Solr 3.3.0 with Tomcat 6.0.26. I was able to successfully install Solr and i was even able to access its web interface using http:/localhost:8084/solr/admin.

现在我想使用它的 dataimporthandler 来索引我的数据库中的数据.我在我的 solrconfig 中添加了以下内容:

Now i want to use its dataimporthandler to index data from my database.I have added following to my solrconfig:

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

我还在同一目录中创建了一个 data-config.xml.

I have also created a data-config.xml in same directory.

我的 solrconfig 文件有以下数据导入位置

My solrconfig file has following location for dataimport

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

并且我已经检查了 dataimporthandler.jar 文件存在于以下路径 C:websolrexamplelibapache-solr-3.3.0dist 的 dist 文件夹中

And i have checked that dataimporthandler.jar file exist in the dist folder at following path C:websolrexamplelibapache-solr-3.3.0dist

但是每当我输入 http:/localhost:8084/solr/dataimport 或 http:/localhost:8084/solr/admin/dataimport 时，它都会说资源不可用.我认为这是 Tomcat 设置的一些问题，所以我停止了 tomcat 并尝试使用 java -jar start.jar 从 cmd 启动 Solr.我收到以下错误

But whenever I type http:/localhost:8084/solr/dataimport or http:/localhost:8084/solr/admin/dataimport it says resource unavailable. I thought it was dur to some problem with Tomcat setting so i stopped tomcat and tried to start Solr from cmd using java -jar start.jar. And i get the following error

HTTP ERROR 500
Problem accessing /solr/. Reason:
Severe errors in solr configuration.
Check your log files for more detailed information on what may be wrong.
If you want solr to continue after configuration errors, change: 

<abortOnConfigurationError>false</abortOnConfigurationError>

in solr.xml

-------------------------------------------------------------
org.apache.solr.common.SolrException: Error loading class    
    'org.apache.solr.handler.dataimport.DataImportHandler'
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:389)
at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:423)
at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:459)
at  
  org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:157)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:563)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:463)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:316)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:207)
at 
   org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:130)
at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:94)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at 
 org.mortbay.jetty.handler.ContextHandlerCollection.doStart
 (ContextHandlerCollection.java:156)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.mortbay.start.Main.invokeMain(Main.java:194)
at org.mortbay.start.Main.start(Main.java:534)
at org.mortbay.start.Main.start(Main.java:441)
at org.mortbay.start.Main.main(Main.java:119)
  Caused by: java.lang.ClassNotFoundException:   
  org.apache.solr.handler.dataimport.DataImportHandler
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.net.FactoryURLClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:373)
... 34 more

推荐答案

我自己一直在研究这个问题，使用 solr 4.1 和 tomcat.我无法包含我需要的库 <lib dir="../../dist/" regex="solr-dataimporthandler-.*.jar"/>-->，我认为这必须是正确的，因为从我包含 solrconfig.xml 的目录来看，它是两个向上的目录，一个向下到 dist.直到我临时替换了直接路径(对我来说，/opt/solr/dist)，我才意识到问题是我从错误的目录开始.事实证明，我需要的是:

I've been looking at this problem for a bit on my own, using solr 4.1 and tomcat. I wasn't able to include the library I needed with <lib dir="../../dist/" regex="solr-dataimporthandler-.*.jar" /> -->, which I figured had to be correct because from the directory that I had the solrconfig.xml in, it was two directories up and one down to dist. It wasn't until I temporarily subbed in the direct path (for me, /opt/solr/dist) that I realized that the problem was that I was starting from the wrong directory. It turns out that what I needed was:

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

因此，如果您在包含此内容时遇到问题，请检查您是否从包含 conf 目录的目录开始，而不是从 conf 目录本身开始.

So, if you're having trouble with including this, check that you're starting from the directory that contains your conf directory, and not the conf directory itself.

这篇关于找不到 Solr DataImportHandler的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！