暂时只是跑起来了，不知道是否正确，困了，睡觉了，改天再弄。搜索那块是分页的，也没仔细弄。。。
参考着 http://blog.csdn.net/kingskyleader/article/details/8444739
在data下放了三个txt...
S:\lucene\data\永生.txt
S:\lucene\data\1.txt
S:\lucene\data\2.txt
永生是本小说，汉语的应该没有英文。
1.txt 内容: hello
2.txt 内容: hi hello 哈哈
程序运行之后控制台打印的信息：
adding [Ljava.io.File;@3f611531 adding [Ljava.io.File;@3f611531 adding [Ljava.io.File;@3f611531 S:\lucene\data\1.txt 1407857427736 S:\lucene\data\2.txt 1407857444245
具体改天再研究。
下面是代码：
pom:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>LuceneTest</groupId>
<artifactId>lucene</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>lucene</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- lucene -->
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-core</artifactId>
<version>4.9.0</version>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-queryparser</artifactId>
<version>4.9.0</version>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-analyzers-common</artifactId>
<version>4.9.0</version>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-highlighter</artifactId>
<version>4.9.0</version>
</dependency>
</dependencies>
</project>
建立索引：
package lucene;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.LongField;
import org.apache.lucene.document.StringField;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.IndexWriterConfig.OpenMode;
import org.apache.lucene.index.Term;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
public class InitIndex {
public void creatIndex() throws IOException {
boolean create = true;
File data = new File("S:\\lucene\\data");
File index = new File("S:\\lucene\\index");
Directory dir = FSDirectory.open(index);
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_9);
IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_4_9,
analyzer);
if (create) {
// Create a new index in the directory, removing any
// previously indexed documents:
iwc.setOpenMode(OpenMode.CREATE);
} else {
// Add new documents to an existing index:
iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
}
IndexWriter iw = new IndexWriter(dir, iwc);
File[] file = data.listFiles();
FileInputStream fis = null;
for (File f : file) {
fis = new FileInputStream(f);
Document doc = new Document();
Field pathField = new StringField("path", f.getPath(),
Field.Store.YES);
doc.add(pathField);
doc.add(new LongField("modified", f.lastModified(), Field.Store.YES));
doc.add(new TextField("contents", new BufferedReader(
new InputStreamReader(fis, "GBK"))));
if (iw.getConfig().getOpenMode() == OpenMode.CREATE) {
// New index, so we just add the document (no old document can
// be there):
System.out.println("adding " + file);
iw.addDocument(doc);
} else {
// Existing index (an old copy of this document may have been
// indexed) so
// we use updateDocument instead to replace the old one matching
// the exact
// path, if present:
System.out.println("updating " + file);
iw.updateDocument(new Term("path", f.getPath()), doc);
}
}
iw.close();
fis.close();
}
}
搜索：
package lucene;
import java.io.File;
import java.io.IOException;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.queryparser.classic.ParseException;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
public class Search {
public void query() throws IOException, ParseException {
String queries = "hello";
int hitsPerPage = 10;
File index = new File("S:\\lucene\\index");
IndexReader reader = DirectoryReader.open(FSDirectory.open(index));
IndexSearcher searcher = new IndexSearcher(reader);
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_9);
QueryParser parser = new QueryParser(Version.LUCENE_4_9, "contents", analyzer);
Query query = parser.parse(queries);
TopDocs results = searcher.search(query, 5 * hitsPerPage);
ScoreDoc[] hits = results.scoreDocs;
int numTotalHits = results.totalHits;
int start = 0;
int end = Math.min(numTotalHits, hitsPerPage);
for (int i = start; i < end; i++) {
Document doc = searcher.doc(hits[i].doc);
String path = doc.get("path");
System.out.println(path);
String modified=doc.get("modified");
System.out.println(modified);
}
}
}
主函数：
package lucene;
import java.io.IOException;
import org.apache.lucene.queryparser.classic.ParseException;
public class Main {
public static void main(String args[]) throws IOException, ParseException{
InitIndex id=new InitIndex();
id.creatIndex();
Search se=new Search();
se.query();
}
}
Lucene 4.9索引txt文件,布布扣,bubuko.com
时间： 2024-08-09 06:33:28