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：

３.增加field节点：

４.修改为defaultSearchField：

５.修改example/solr/conf/solrconfig.xml,增加lib包：

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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