资料:http://levi.bloghome.cn/posts/121531.html
代码如下:
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?//生成索引:
packagecom.lucene.index;
importjava.io.File;
importjava.io.FileReader;
importjava.io.IOException;
importorg.apache.lucene.analysis.standard.StandardAnalyzer;
importorg.apache.lucene.document.Document;
importorg.apache.lucene.document.Field;
importorg.apache.lucene.index.IndexWriter;
public
Indexer{
public
void
(String
args)throwsIOException{
FileindexDir=
File("C: estindex");
FiledataDir =File("C: estdata");
numIndexed=index(indexDir,dataDir);
.out.prln(numIndexed);
}
publicindex(FileindexDir,FiledataDir)throwsIOException{
(!indexDir.exists
||!dataDir.isDirectory){
throwIOException;
}
IndexWriterwriter=IndexWriter(indexDir,StandardAnalyzer,true);
writer.
UseCompoundFile(false);
indexDirectory(writer,dataDir);
numIndexed=writer.docCount;
writer.optimize;
writer.close;
numIndexed;
}
privatevoidindexDirectory(IndexWriterwriter,Filedir)throwsIOException{
Filefiles=dir.listFiles;
for(i=0;i<files.length;i
){
Filef=files[i];
(f.isDirectory){
indexDirectory(writer,f);
}
(f.getName.toLowerCase.endsWith(".txt")){
indexFile(writer,f);
}
}
}
publicvoidindexFile(IndexWriterwriter,Filef)throwsIOException{
(f.isHidden||!f.exists||!f.canRead){
;
}
.out.prln("Indexing"+f.getCanonicalPath);
Documentdoc=Document;
doc.add(Field("filename",f.getCanonicalPath,Field.Store.YES,Field.Index.UN_TOKENIZED));
doc.add(Field("contents",FileReader(f)));
writer.addDocument(doc);
}
}
//查询代码:
packagecom.lucene.search;
importjava.io.File;
importjava.io.IOException;
importorg.apache.lucene.analysis.standard.StandardAnalyzer;
importorg.apache.lucene.queryParser.QueryParser;
importorg.apache.lucene.search.Hits;
importorg.apache.lucene.search.IndexSearcher;
importorg.apache.lucene.search.Query;
importorg.apache.lucene.store.Directory;
importorg.apache.lucene.store.FSDirectory;
publicSearcher{
publicvoid(Stringargs)throwsException{
FileindexDir=File("C: estindex");
Stringq="ERROR";
(!indexDir.exists||!indexDir.isDirectory){
throwIOException;
}
search(indexDir,q);
}
publicvoidsearch(FileindexDir,Stringq)throwsException{
DirectoryfsDir=FSDirectory.getDirectory(indexDir);
IndexSearchersearcher=IndexSearcher(fsDir);
QueryParserparser=QueryParser("contents",StandardAnalyzer);
Queryquery=parser.parse(q);
Hitshits=searcher.search(query);
.out.prln("共有"+searcher.maxDoc+"条索引
命中"+hits.length+"条");
for(i=0;i<hits.length;i){
DocId=hits.id(i);
StringDocPath=hits.doc(i).get("filename");
.out.prln(DocId+":"+DocPath);
}
}
} 
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