基于源码搭建solr搜索服务器

基于源码搭建的好处的就是，我们在开发过程中可以方便地进行调试跟踪，这样也能够便于更深入地了解Solr框架的执行机制。Solr是基于Lucene这个开源搜索引擎库开发的框架，通过了解Solr的源代码，你可以更深入地熟悉如何在Lucene之上构建适合自己的搜索应用，甚至你完全可以将Solr改造成自己需要的应用程序。一般来说，我们使用Solr搭建搜索服务器的时候，完全可以不需要熟悉Lucene是怎么样实现索引和全文检索的，但是在Solr上进行开发调试，如调试搜索的相关度时，就需要对Lucene有一定的了解，才能在调优的过程中事半功倍。

基于源码的搭建，我采用了一种Lucene和Solr的源代码都可以进行修改，即将Lucene和Solr的代码导入的开发环境中。具体如何导入，因为代码都是开源的，你可以使用任何方法实现，不再累述。这里，我们简单说一下，我将solr和Lucene分别导入到了两个工程中：Lucene Java Project、Solr Web Project。我把工程的.classpath文件粘贴一下，以供参考：

Lucene Java Project的.classpath文件内容如下：

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
	<classpathentry kind="src" path="src/lucene/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/analyzers/common/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/analyzers/common/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/analyzers/smartcn/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/analyzers/smartcn/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/analyzers/stempel/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/analyzers/stempel/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/benchmark/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/benchmark/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/demo/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/demo/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/facet/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/facet/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/facet/src/examples"/>
	<classpathentry kind="src" path="src/lucene/contrib/grouping/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/grouping/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/highlighter/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/highlighter/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/icu/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/icu/src/tools/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/icu/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/instantiated/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/instantiated/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/join/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/join/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/memory/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/memory/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/misc/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/misc/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/queries/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/queries/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/queryparser/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/queryparser/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/remote/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/remote/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/spatial/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/spatial/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/spellchecker/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/spellchecker/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/xml-query-parser/src/java"/>
	<classpathentry kind="src" path="src/lucene/contrib/xml-query-parser/src/test"/>
	<classpathentry kind="src" path="src/lucene/contrib/xml-query-parser/src/demo/java"/>
	<classpathentry kind="src" path="src/lucene/test-framework/src/java"/>
	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/Contributions Dependences"/>
	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/Lucene Contrib Dependences"/>
	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/JUnit 4.7"/>
	<classpathentry kind="output" path="bin"/>
</classpath>

Solr Web Project的.classpath文件内容如下：

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
	<classpathentry kind="src" path="src/solr/solrj/src/java"/>
	<classpathentry kind="src" path="src/solr/solrj/src/test"/>
	<classpathentry kind="src" path="src/solr/core/src/java"/>
	<classpathentry kind="src" path="src/solr/core/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/analysis-extras/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/analysis-extras/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/clustering/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/clustering/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/dataimporthandler/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/dataimporthandler/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/dataimporthandler-extras/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/dataimporthandler-extras/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/extraction/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/extraction/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/langid/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/langid/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/uima/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/uima/src/test"/>
	<classpathentry kind="src" path="src/solr/contrib/velocity/src/java"/>
	<classpathentry kind="src" path="src/solr/contrib/velocity/src/test"/>
	<classpathentry kind="src" path="src/solr/test-framework/src/java"/>
	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
	<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.j2eedt.core.MYECLIPSE_JAVAEE_5_CONTAINER"/>
	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/Solr Contrib Dependences"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/apache-solr-noggit-r1099557.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-codec-1.5.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-csv-1.0-SNAPSHOT-r966014.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-fileupload-1.2.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-httpclient-3.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-io-1.4.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-lang-2.4.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/easymock-2.2.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/geronimo-stax-api_1.0_spec-1.0.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/guava-r05.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/jcl-over-slf4j-1.6.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/junit-4.7.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/log4j-over-slf4j-1.6.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/servlet-api-2.4.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/slf4j-api-1.6.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/slf4j-jdk14-1.6.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/wstx-asl-3.2.7.jar"/>
	<classpathentry combineaccessrules="false" kind="src" path="/lucene35"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/core-3.1.1.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/jetty-6.1.26-patched-JETTY-1340.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/jetty-util-6.1.26-patched-JETTY-1340.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/jsp-2.1-glassfish-2.1.v20091210.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/jsp-2.1-jetty-6.1.26.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/jsp-api-2.1-glassfish-2.1.v20091210.jar"/>
	<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/servlet-api-2.5-20081211.jar"/>
	<classpathentry kind="output" path="WebRoot/WEB-INF/classes"/>
</classpath>

搭建起来开发环境，你可以更加深入的学习Solr了。