📄 dosearch.java
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//import org.mira.lucene.analysis.IK_CAnalyzer;
import jeasy.analysis.MMAnalyzer;
import org.apache.lucene.analysis.*;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.document.*;
import org.apache.lucene.queryParser.*;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Searcher;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.BooleanQuery;
//import org.apache.lucene.analysis.cn.ChineseAnalyzer;
//import org.apache.lucene.search.highlight.Scorer;
//import org.apache.lucene.search.highlight.QueryScorer;
//import org.apache.lucene.search.highlight.Highlighter;
import org.apache.lucene.search.Query;
import java.io.*;
import java.util.*;
//import java.text.*;
public class doSearch
{
public static void main(String args[])
{
int begin=0;
int end=0;
PrintWriter out=null;
IndexSearcher searcher=null;
Query query=null;
Hits hits=null;
String indexDir=null;
String lookstring=null;
String usage="usage: java doSearch <index filename> <query string> <begin index> <end index>";
PrintWriter fileOut=null;
if(args.length==2)
{
indexDir=args[0];
lookstring=args[1];
begin=0;
end=10;
}
else if(args.length==3)
{
indexDir=args[0];
lookstring=args[1];
begin=0;
try{
end=Integer.parseInt(args[2]);
}catch(Exception e){ System.out.println(usage); System.exit(1);}
end=end>begin?end: begin+10;
}
else if(args.length==4)
{
indexDir=args[0];
lookstring=args[1];
try{
begin=Integer.parseInt(args[2]);
end=Integer.parseInt(args[3]);
}catch(Exception e){System.out.println(usage);System.exit(1);}
begin=begin>=0 ?begin :0;
end=end>begin? begin+10: end;
}
else
{
System.out.println(usage);System.exit(1);
}
File f=new File(indexDir);
IndexReader reader=null;
out=null;
searcher=null;
query=null;
hits=null;
try{
reader=IndexReader.open(f);
}
catch(IOException e)
{
System.out.println("error occurred in open index-file");
System.exit(0);
}
QueryParser parser=new QueryParser("desc",new MMAnalyzer());
/*BooleanQuery boquery=new BooleanQuery();
for(int i=0;i<args.length;i++)
{
Query query=parser.parse(args[i]);System.out.println(query);
boquery.add(query,BooleanClause.Occur.SHOULD);
}
//Scorer scorer=new QueryScorer(boquery);
//Highlighter highlighter=new Highlighter(scorer);
*/
try{
query=parser.parse(args[1]);
}catch(ParseException e)
{
System.out.println("parse error!");
System.exit(1);
}
System.out.println("the query is: "+query);
//try{
searcher=new IndexSearcher(reader);
//}catch(IOException e){System.out.println("search error!");System.exit(2);}
long starts=new Date().getTime();
try{
hits=searcher.search(query);
}catch(IOException e){System.out.print("error in search: "+e);System.exit(0);}
long ends=new Date().getTime();
int len=hits.length();
begin=begin<len?begin:0;
end=end<len?end:len;
try{
fileOut=new PrintWriter(new FileOutputStream("result.html"));
}catch(FileNotFoundException e)
{
System.out.println("file not found error!");
System.exit(4);
}
fileOut.print("<html><body>");
fileOut.print("took "+(ends-starts)+" milliseconds");
//out.println();
if(hits.length()==0)
{
fileOut.print("no file matched "+args);
}
try{
for(int i=begin;i<end;i++)
{
String sb=hits.doc(i).get("title");
//TokenStream stream=new IK_CAnalyzer().tokenStream("content",new StringReader(sb));
//String fragment=highlighter.getBestFragment(stream,sb);
//out.print(fragment);
fileOut.println("<p><a href=\""+hits.doc(i).get("url")+"\" target=\"_blank\">");
fileOut.print((i+1)+"、 title: "+sb+"</a> ");
fileOut.println("<i>score: "+hits.score(i)+"</i><br>");
}
}catch(Exception e)
{
System.out.println("error in get details: "+e);
fileOut.println("</body></html>");
fileOut.close();
System.exit(0);
}
fileOut.print("</body></html>");
fileOut.close();
//}catch(Exception e){System.err.println(e.getMessage());System.exit(0);}
}
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