solr配置搜索引擎
１.下载apache-solr-3.5.0.zip包,解压２.修改example/solr/conf/schema.xml文件，增加fieldtype节点：
<fieldType name="text_cn" class="solr.TextField">
<analyzer type="index">
<tokenizer class="solr.SmartChineseSentenceTokenizerFactory"/>
<filter class="solr.SmartChineseWordTokenFilterFactory"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="stopwords_cn.txt"
enablePositionIncrements="true"
/>
<filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.SmartChineseSentenceTokenizerFactory"/>
<filter class="solr.PositionFilterFactory" />
<filter class="solr.SynonymFilterFactory" synonyms="synonyms_cn.txt" ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="stopwords_cn.txt"
enablePositionIncrements="true"
/>
<filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt" />
</analyzer>
</fieldType>
３.增加field节点：
<field name="text_cn" type="text_cn" indexed="true" stored="true" multiValued="true" />
４.修改为defaultSearchField：
<defaultSearchField>text_cn</defaultSearchField>
５.修改example/solr/conf/solrconfig.xml,增加lib包：
<lib dir="../../contrib/analysis-extras/lucene-libs" />
<lib dir="../../contrib/analysis-extras/lib" />
<lib dir="../../dist/" regex="apache-solr-analysis-extras-\d.*\.jar" />
６.到example下执行命令启动jetty: java -jar start.jar
7.在spring中配置定时任务执行索引：
@Service
public class IndexTask {
private Constant constant = new Constant();
@Scheduled(cron = "20 13 20 ? * *")
public void createIndex() {
String appPath = IndexTask.class.getResource("/").toString();
appPath = StringUtils.substringAfter(
StringUtils.substringBefore(appPath, "WEB-INF"), "/");
String docPath = appPath + "upload/";
try {
File file = new File(docPath);
String urlString = constant.getUrl();
StreamingUpdateSolrServer solr = new StreamingUpdateSolrServer(
urlString, 1, 1);
solr.deleteByQuery("*:*");
solr.blockUntilFinished();
indexFilesSolrCell(file.listFiles(), solr);
} catch (Exception e) {
e.printStackTrace();
}
}
private void indexFilesSolrCell(File[] fileList,
StreamingUpdateSolrServer solr) throws IOException,
SolrServerException, InterruptedException {
for (File file : fileList) {
if (file.isFile()) {
ContentStreamUpdateRequest up = new ContentStreamUpdateRequest(
"/update/extract");
up.addFile(file);
up.setParam("uprefix", "attr_");
up.setParam("fmap.content", "text_cn");
up.setParam("literal.id", file.getPath());
up.setAction(AbstractUpdateRequest.ACTION.COMMIT, false, false);
solr.request(up);
solr.blockUntilFinished();
System.out.println("Analysis file:" + file.getPath());
} else if (file.isDirectory()) {
indexFilesSolrCell(file.listFiles(), solr);
}
}
}
}
８.在struts的action中增加全文检索方法：
@Action(value = "/listSolrAction", results = { @Result(name = "list", location = "/lucene/listLucene.jsp") })
public String list() {
String urlString ="http://localhost:8983/solr";
System.out.println(urlString);
try {
StreamingUpdateSolrServer solr = new StreamingUpdateSolrServer(
urlString, 1, 1);
if (StringUtils.isNotBlank(search)) {
SolrQuery solrQuery = new SolrQuery();
solrQuery.set("q", "text_cn:" + search);
QueryResponse rsp = solr.query(solrQuery);
SolrDocumentList solrDocumentList = rsp.getResults();
for (SolrDocument solrDocument : solrDocumentList) {
SearchItem searchItem = new SearchItem();
searchItem.setHref(solrDocument.getFieldValue("id")
.toString());
String content = removeSpecial(solrDocument.getFieldValue(
"text_cn").toString());
content = StringUtils.left(content, 30);
searchItem.setContent(content);
String title = "";
Object titleO = solrDocument.getFieldValue("title");
if (titleO == null) {
title = StringUtils.left(content, 10);
} else {
title = removeSpecial(titleO.toString());
}
searchItem.setTitle(title);
searchItemList.add(searchItem);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return "list";
}
９.jsp页面内容：
<s:form action="listSolrAction">
<s:textfield name="search"></s:textfield>
<s:submit></s:submit>
</s:form>
<table>
<s:iterator var="searchItem" value="searchItemList">
<tr>
<td><a href='<s:property value="href"/>'><s:property
value="title" /> </a></td>
</tr>
<tr>
<td><s:property value="content"/></td>
</tr>
</s:iterator>
</table>
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