hello,
Plz tell how to convert this jsp file into servlet.
builddict.jsp
<%@ page
contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"
import="javax.servlet.*,javax.servlet.http.*,java.io.*,java.util.*,java.net.*"
import="org.apache.nutch.html.Entities"
import="org.apache.nutch.searcher.*"
import="org.apache.nutch.plugin.*"
import="org.apache.nutch.clustering.*"
import="org.apache.nutch.util.NutchConf"
%>
<%!
private final static int HITS_TO_CLUSTER =
NutchConf.get().getInt("extension.clustering.hits-to-cluster", 100);
private static OnlineClusterer clusterer;
static {
try {
clusterer = OnlineClustererFactory.getOnlineClusterer();
} catch (PluginRuntimeException e) {
}
}
%>
<%
NutchBean bean = NutchBean.get(application);
// set the character encoding to use when interpreting request values
request.setCharacterEncoding("UTF-8");
bean.LOG.info("query request from " + request.getRemoteAddr());
// get query from request
// String queryString = "term";
BufferedReader buf=new BufferedReader(new FileReader("/usr/tomcat/webapps/dev2/demo.txt"));
FileOutputStream fout=new FileOutputStream("/usr/tomcat/webapps/dev2/finaldict2.txt");
String strmm;
while((strmm=buf.readLine())!=null)
{
String queryString = strmm;
// out.print("****"+queryString);
if (queryString == null)
queryString = "";
String htmlQueryString = Entities.encode(queryString);
// a flag to make the code cleaner a bit.
boolean clusteringAvailable = (clusterer != null);
String clustering = "";
if (clusteringAvailable && "yes".equals(request.getParameter("clustering")))
clustering = "yes";
int start = 0; // first hit to display
String startString = request.getParameter("start");
if (startString != null)
start = Integer.parseInt(startString);
int hitsPerPage = 10; // number of hits to display
String hitsString = request.getParameter("hitsPerPage");
if (hitsString != null)
hitsPerPage = Integer.parseInt(hitsString);
int hitsPerSite = 2; // max hits per site
String hitsPerSiteString = request.getParameter("hitsPerSite");
if (hitsPerSiteString != null)
hitsPerSite = Integer.parseInt(hitsPerSiteString);
String sort = request.getParameter("sort");
boolean reverse =
sort!=null && "true".equals(request.getParameter("reverse"));
String params = "&hitsPerPage="+hitsPerPage
+(sort==null ? "" : "&sort="+sort+(reverse?"&reverse=true":""));
int hitsToCluster = HITS_TO_CLUSTER; // number of hits to cluster
Query query = Query.parse(queryString);
bean.LOG.info("query: " + queryString);
String language =ResourceBundle.getBundle("org.nutch.jsp.search", request.getLocale())
.getLocale().getLanguage();
String requestURI = HttpUtils.getRequestURL(request).toString();
String base = requestURI.substring(0, requestURI.lastIndexOf('/'));
String rss = "../opensearch?query="+htmlQueryString+"&hitsPerSite="+hitsPerSite+params;
/* try{
//FileOutputStream fout=new FileOutputStream("/usr/tomcat/webapps/dev2/mm.txt");
//new PrintStream(fout).println("hi");
BufferedReader buf=new BufferedReader(new FileReader("/usr/tomcat/webapps/dev2/manualdict.txt"));
String str1;
while((str1=buf.readLine())!=null)
{
out.print(str1+"<br>");
}
}catch(Exception e){out.print(e);}*/
%>
<%
// how many hits to retrieve? if clustering is on and available,
// take "hitsToCluster", otherwise just get hitsPerPage
int hitsToRetrieve = (clusteringAvailable && clustering.equals("yes") ? hitsToCluster : hitsPerPage);
if (clusteringAvailable && clustering.equals("yes")) {
bean.LOG.info("Clustering is on, hits to retrieve: " + hitsToRetrieve);
}
// perform query
// NOTE by Dawid Weiss:
// The 'clustering' window actually moves with the start
// position.... this is good, bad?... ugly?....
Hits hits;
try{
hits = bean.search(query, start + hitsToRetrieve, hitsPerSite, "site",
sort, reverse);
} catch (IOException e){
hits = new Hits(0,new Hit[0]);
}
int end = (int)Math.min(hits.getLength(), start + hitsPerPage);
int length = end-start;
int realEnd = (int)Math.min(hits.getLength(), start + hitsToRetrieve);
Hit[] show = hits.getHits(start, realEnd-start);
HitDetails[] details = bean.getDetails(show);
String[] summaries = bean.getSummary(details, query);
bean.LOG.info("total hits: " + hits.getTotal());
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%@ taglib uri="http://jakarta.apache.org/taglibs/i18n" prefix="i18n" %>
<i18n:bundle baseName="org.nutch.jsp.search"/>
<html lang="<%= language %>">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<head>
<title>Nutch: <i18n:message key="title"/></title>
<link rel="icon" href="img/favicon.ico" type="image/x-icon"/>
<link rel="shortcut icon" href="img/favicon.ico" type="image/x-icon"/>
<link rel="alternate" type="application/rss+xml" title="RSS" href="<%=rss%>"/>
<jsp:include page="include/style.html"/>
<base href="<%= base + "/" + language %>/">
</head>
<body>
<%
if(end == 0){
}else{
new PrintStream(fout).println(queryString);
}
}
out.print("Dictionary Created Successfully!!!....");
%>
<br><br>
</body>
</html>
thanks in advance
regards
sram |
convert JSP to Servlet
