本来环境配置是没有问题的，但是只要是想索引二进制文件，在配置responseHandler的时候就会出现问题
<requestHandler name="/update/extract" class="org.apache.solr.handler.extraction.ExtractingRequestHandler">
<lst name="defaults">
<str name="lowernames">true</str>
<str name="uprefix">ignored_</str>
<str name="captureAttr">true</str>
</lst>
</requestHandler>
抛出的错误提示为：
HTTP Status 500 - {msg=SolrCore 'collection1' is not available due to init failure: RequestHandler init failure,trace=org.apache.solr.common.SolrException: SolrCore 'collection1' is not available due to init failure: RequestHandler init failure at org.apache.solr.core.CoreContainer.getCore(CoreContainer.java:827) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:305) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:205) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2508) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2497) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.solr.common.SolrException: RequestHandler init failure at org.apache.solr.core.SolrCore.(SolrCore.java:844) at org.apache.solr.core.SolrCore.(SolrCore.java:630) at org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:562) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:597) at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:258) at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:250) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ... 1 more Caused by: org.apache.solr.common.SolrException: RequestHandler init failure at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:167) at org.apache.solr.core.SolrCore.(SolrCore.java:774) ... 11 more Caused by: org.apache.solr.common.SolrException: Error loading class 'org.apache.solr.handler.extraction.ExtractingRequestHandler' at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:470) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:401) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:531) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:604) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:153) ... 12 more Caused by: java.lang.ClassNotFoundException: org.apache.solr.handler.extraction.ExtractingRequestHandler at java.net.URLClassLoader$1.run(URLClassLoader.java:372) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:360) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:798) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:340) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:454) ... 16 more ,code=500}
有帖子说要导入两个jar包，但是不知道导入到那个位置，所以tomcat 服务器、solrhome都导入了，但是还是会报错。
这个问题卡了好几天了，求大神解决下。
