大漠驼铃

置身浩瀚的沙漠,方向最为重要,希望此blog能向大漠驼铃一样,给我方向和指引。
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数据加载中……

Lucene索引查询分页实例

一、输入关键字的lucene.html
<html>
<body>
<form name="form1" method="post" action="search.jsp">
   请输入关键字:<input type="text" name="keyword">
  <input type="submit" name="Submit" value="提交">
</form>
</body>
</html>

 二、进行搜索和显示结果的search.jsp <%@ page contentType="text/html; charset=gb2312" %>
<%@ page import="java.util.*" %>
<%@ page import="java.text.SimpleDateFormat" %>
<%@ page import = "org.apache.lucene.analysis.standard.StandardAnalyzer" %>
<%@ page import="org.apache.lucene.index.IndexReader" %>
<%@ page import="org.apache.lucene.document.Document" %>
<%@ page import="org.apache.lucene.search.IndexSearcher" %>
<%@ page import="org.apache.lucene.search.Hits" %>
<%@ page import="org.apache.lucene.search.Query" %>
<%@ page import="page.Pagination" %> <%@ page import="org.apache.lucene.queryParser.QueryParser" %>
<%@ page import ="org.apache.lucene.analysis.Analyzer" %>
<%

  String queryString = request.getParameter("keyword");  

if (queryString == null||queryString.length()==0){
out.println("搜索关键字不能为空");

}else{
queryString=new String(queryString.getBytes("ISO8859_1"));
String indexPath=getServletContext().getRealPath("/")+"index";
boolean error = false;
Document doc;

IndexSearcher searcher = null;
Query query = null;
Hits hits = null;

try {
searcher = new IndexSearcher(IndexReader.open(indexPath));
} catch (Exception e) {
out.print("没有找到索引文件!");
out.print(e.getMessage());
error = true;
}
if (error == false) {
Analyzer analyzer = new StandardAnalyzer();
try {
query = QueryParser.parse(queryString, "Article_name", analyzer);
} catch (Exception e) {
out.print(e.getMessage());
error = true;

}
}
if (error == false && searcher != null) {

hits = searcher.search(query);
if (hits.length() == 0) {
out.print("对不起!没有找到你所需要的资源. ");
error = true;
}
}
if (error == false && searcher != null) {
out.print("搜索关键字:"+ queryString+ "");
//Pagination类是网上下载的,需要传递一个向量,你可以改,这样就不用做二遍事
Vector list=new Vector();
for(int i=0;i< hits.length();i++){
doc = hits.doc(i);
list.add(doc);
}

out.print("找到的资源");
Pagination pagination = null;
String pageNumber = request.getParameter("pageNumber");

int showItemNumber = 10;
if (pageNumber == null) {
pageNumber = "1";
}
String HTML = "";
if (list != null && list.size() > 0) {
pagination = new Pagination();
pagination.setPageNumber(Integer.parseInt(pageNumber));
pagination.setShowItemNumber(showItemNumber);
pagination.setVisitPageURL("search.jsp?keyword="+queryString);
list =(Vector) pagination.interceptListByStarItemNumber(list);
for(int i=0;i< list.size();i++)
{
doc =(Document) list.get(i);
String A_id=doc.get("Article_id");
String doctitle = doc.get("Article_name");
String url = doc.get("File_name")+"?id="+A_id;

out.print("< a href='http://127.0.0.1:8080/cwbwebhome/"+url+"'>(★) "+doctitle+"");
}
HTML = pagination.buildHTML("600");
out.print(HTML);
}
}

}

posted on 2009-03-03 15:56 草原上的骆驼 阅读(1099) 评论(0)  编辑  收藏 所属分类: 搜索服务


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