package newsserver;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.cn.ChineseAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
/**
* <p>Title: 新闻搜索引擎</p>
* <p>Description: 毕业设计</p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Company: </p>
* @author 计算机99630 沈晨
* @version 1.0
*/
public class Results
extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GBK";
//Initialize global variables
public void init() throws ServletException {
}
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
String QC = request.getParameter("QueryContent");
if (QC == null) {
QC = "";
}
else {
QC = input(QC);
}
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
try {
Search(QC, out);
}
catch (Exception ex) {
System.out.println(ex.getMessage());
}
}
public void Search(String qc, PrintWriter out) throws Exception {
// 从索引目录创建索引
IndexSearcher _searcher = new IndexSearcher("c:\\news\\index");
// 创建标准分析器
Analyzer analyzer = new ChineseAnalyzer();
// 查询条件
String line = qc;
// Query是一个抽象类
Query query = QueryParser.parse(line, "title", analyzer);
out.println("<html>");
out.println("<head><title>搜索结果</title></head>");
out.println("<body bgcolor=#ffffff>");
out.println("<center>" +
"<form action='/NewsServer/results' method='get'>" +
"<font face='华文中宋' color='#3399FF'>新闻搜索引擎</font>:" +
"<input type='text' name='QueryContent' size='20'>" +
"<input type='submit' name='submit' value='开始搜索'>" +
"</form></center>"
);
out.println("<p>搜索关键字：<font color=red>" + query.toString("title") +
"</font></p>");
Hits hits = _searcher.search(query);
out.println(" 总共找到<font color=red>" + hits.length() + "</font>条新闻<br>");
final int HITS_PER_PAGE = 10;
for (int start = 0; start < hits.length(); start += HITS_PER_PAGE) {
int end = Math.min(hits.length(), start + HITS_PER_PAGE);
for (int i = start; i < end; i++) {
Document doc = hits.doc(i);
String url = doc.get("url");
if (url != null) {
out.println( (i + 1) + " <a href='" + url + "'>" +
replace(doc.get("title"), qc) +
"</a><br>");
}
else {
System.out.println("没有找到！");
}
}
}
out.println("</body></html>");
_searcher.close();
};
public String input(String str) {
String temp = null;
if (str != null) {
try {
temp = new String(str.getBytes("ISO8859_1"));
}
catch (Exception e) {
}
}
return temp;
}
public String replace(String title, String keyword) {
return title.replaceAll(keyword, "<font color='red'>" + keyword + "</font>");
};
//Clean up resources
public void destroy() {
}
}
java 搜索引擎
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2008-01-05
16:06:13
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java 搜索引擎 （221个子文件） 
Results.class 4KB Results.class 4KB Results.class 4KB Results.class 4KB NewsSearcher_jsp.class 3KB NewsSearcher_jsp.class 3KB HTMLParse.class 2KB HTMLParse.class 2KB Searcher.class 2KB Searcher.class 2KB Index.class 1KB Index.class 1KB news.dep2 5KB news.dep2 5KB newsserver.dep2 3KB newsserver.dep2 3KB
SearchEngine.doc 330KB News.htm 11KB News.htm 11KB
results.html 442B results.html 442B results.html~1~ 429B results.html~1~ 429B results.html~2~ 407B results.html~2~ 407B results.html~3~ 342B results.html~3~ 342B results.html~4~ 382B results.html~4~ 382B results.html~5~ 369B results.html~5~ 369B results.html~6~ 371B results.html~6~ 371B
lucene_cn.jar 136KB lucene_cn.jar 136KB lucene-1.2.jar 133KB lucene-1.2.jar 133KB bot.jar 37KB bot.jar 37KB Results.java 4KB Results.java 4KB NewsSearcher_jsp.java 2KB NewsSearcher_jsp.java 2KB HTMLParse.java 1KB HTMLParse.java 1KB Searcher.java 1KB Searcher.java 1KB Index.java 1KB Index.java 1KB HTMLParse.java~11~ 1KB HTMLParse.java~11~ 1KB HTMLParse.java~12~ 1KB HTMLParse.java~12~ 1KB HTMLParse.java~13~ 1KB HTMLParse.java~13~ 1KB HTMLParse.java~14~ 1KB HTMLParse.java~14~ 1KB HTMLParse.java~15~ 1KB HTMLParse.java~15~ 1KB HTMLParse.java~16~ 1KB HTMLParse.java~16~ 1KB HTMLParse.java~17~ 1KB HTMLParse.java~17~ 1KB HTMLParse.java~18~ 1KB HTMLParse.java~18~ 1KB HTMLParse.java~19~ 1KB HTMLParse.java~19~ 1KB QueryNews.java~1~ 2KB QueryNews.java~1~ 2KB Searcher.java~1~ 215B Searcher.java~1~ 215B HTMLParse.java~20~ 1KB HTMLParse.java~20~ 1KB Results.java~27~ 3KB Results.java~27~ 3KB Results.java~28~ 3KB Results.java~28~ 3KB Results.java~29~ 3KB Results.java~29~ 3KB QueryNews.java~2~ 2KB QueryNews.java~2~ 2KB Searcher.java~2~ 1KB Searcher.java~2~ 1KB Results.java~30~ 3KB Results.java~30~ 3KB Results.java~31~ 3KB Results.java~31~ 3KB Results.java~32~ 4KB Results.java~32~ 4KB Index.java~32~ 1008B Index.java~32~ 1008B Results.java~33~ 4KB Results.java~33~ 4KB Index.java~33~ 1KB Index.java~33~ 1KB Results.java~34~ 3KB Results.java~34~ 3KB Index.java~34~ 1KB Index.java~34~ 1KB Results.java~35~ 4KB共 221 条
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