Liferay 5.1.1 solr插件ClassCastException

我在端口8983上安装并运行了Solr 1.2，并使用liferay 5.1.1。问题是如何配置Solr以搜索liferay JournalArticle表我已经为liferay安装了Solr web插件，但它引发了此异常

[SolrIndexSearcherImpl:79] Error while sending request to Solr
java.lang.ClassCastException: com.liferay.portal.kernel.util.HttpUtil cannot be cast to com.liferay.portal.kernel.util.HttpUtil
        at com.liferay.portal.kernel.util.HttpUtil._getUtil(HttpUtil.java:317)
        at com.liferay.portal.kernel.util.HttpUtil.getHttp(HttpUtil.java:96)
        at com.liferay.portal.kernel.util.HttpUtil.addParameter(HttpUtil.java:68)
        at com.liferay.portal.search.solr.SolrIndexSearcherImpl.search(SolrIndexSearcherImpl.java:71)
        at com.liferay.portal.search.solr.SolrSearchEngineUtil.search(SolrSearchEngineUtil.java:78)
        at com.liferay.portal.search.solr.messaging.SolrReaderMessageListener.doCommandSearch(SolrReaderMessageListener.java:92)
        at com.liferay.portal.search.solr.messaging.SolrReaderMessageListener.doReceive(SolrReaderMessageListener.java:75)
        at com.liferay.portal.search.solr.messaging.SolrReaderMessageListener.receive(SolrReaderMessageListener.java:46)
        at com.liferay.portal.kernel.messaging.InvokerMessageListener.receive(InvokerMessageListener.java:69)
        at com.liferay.portal.kernel.messaging.ParallelDestination$1.run(ParallelDestination.java:59)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
16:08:16,174 ERROR [SolrReaderMessageListener:49] Unable to process message com.liferay.portal.kernel.messaging.Message@2c591d98
com.liferay.portal.kernel.search.SearchException: java.lang.ClassCastException: com.liferay.portal.kernel.util.HttpUtil cannot be cast to com.liferay.portal.kernel.util.HttpUtil
        at com.liferay.portal.search.solr.SolrIndexSearcherImpl.search(SolrIndexSearcherImpl.java:81)
        at com.liferay.portal.search.solr.SolrSearchEngineUtil.search(SolrSearchEngineUtil.java:78)
        at com.liferay.portal.search.solr.messaging.SolrReaderMessageListener.doCommandSearch(SolrReaderMessageListener.java:92)
        at com.liferay.portal.search.solr.messaging.SolrReaderMessageListener.doReceive(SolrReaderMessageListener.java:75)
        at com.liferay.portal.search.solr.messaging.SolrReaderMessageListener.receive(SolrReaderMessageListener.java:46)
        at com.liferay.portal.kernel.messaging.InvokerMessageListener.receive(InvokerMessageListener.java:69)
        at com.liferay.portal.kernel.messaging.ParallelDestination$1.run(ParallelDestination.java:59)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

顺便说一句，这是我的SolrWeb solr-spring.xml

<beans>
    <bean id="indexSearcher" class="com.liferay.portal.search.solr.SolrIndexSearcherImpl">
     <property name="serverURL" value="http://localhost:8983/solr/select" />
    </bean>
    <bean id="indexWriter" class="com.liferay.portal.search.solr.SolrIndexWriterImpl">
     <property name="serverURL" value="http://localhost:8983/solr/update" />
    </bean>
    <bean id="searchEngine" class="com.liferay.portal.search.solr.SolrSearchEngineImpl">
  <property name="name" value="Solr" />
     <property name="searcher" ref="indexSearcher" />
     <property name="writer" ref="indexWriter" />
     <property name="indexReadOnly" value="false" />
    </bean>

 <bean id="searchEngineUtil" class="com.liferay.portal.search.solr.SolrSearchEngineUtil" lazy-init="false">
     <constructor-arg ref="searchEngine" />
     <constructor-arg ref="searchReaderMessageListener" />
     <constructor-arg ref="searchWriterMessageListener" />
    </bean>

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在这种情况下schema.xml会是什么样的呢

似乎您的应用服务器中必须有多个portal-kernel.jar文件

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此jar不能在至少包含门户应用和应用服务器中插件的ear的上下文中复制，或者全局类路径，如果运行在像tomcat这样的servlet容器中。

HttpUtils类实际上被修改以满足需求，所以这个类的解决方案是用我们修改的内核类替换原始内核类。

不，问题不在jar中，我搜索了tomcat目录，只找到了portal-kernel.jar的一个副本，但问题只发生在我安装solr插件时。情况如下：我在端口8983安装了solr服务器，在8080安装了liferay服务器。当我安装solr插件时，我配置了更新并选择了solr的URL，然后我得到了异常凌驾