索引源代码：
package lUCene;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Company: </p>
* @author Shirley
* @version 1.0
*/
import org.apache.lucene.index.*;
import org.apache.lucene.analysis.*;
import Java.io.*;
import org.apache.lucene.document.*;
public class IndexFiles {
//使用方法：: IndexFiles [索引输出目录] [索引的文件列表] ...
public static void main(String[] arg) throws Exception {
String[] args = new String[2];
//索引后存放索引信息的路径
args[0] = System.getProperty("java.io.tmpdir", "tmp") + System.getProperty("file.separator") + "index-1";
//待索引文件
args[1] = "E:\\AppWork\\lucene\\rfc2047.txt";
args[2] = "E:\\AppWork\\cyberOffice\\CO\\Sheldon Java Mail.htm";
args[3] = "E:\\AppWork\\lucene\\englishtest.doc";
args[4] = "E:\\AppWork\\cyberoffice\\CO\\xls1.xls";
args[5] = "E:\\AppWork\\cyberoffice\\CO\\ppt1.ppt";
String indeXPath = args[0];
IndexWriter writer;
//用指定的语言分析器构造一个新的写索引器（第3个参数表示是否为追加索引）
writer = new IndexWriter(indexPath, new SimpleAnalyzer(), false);
for (int i=1; i<args.length; i++) {
System.out.println("Indexing file " + args[i]);
InputStream is = new FileInputStream(args[i]);
//构造包含2个字段Field的Document对象
//一个是路径path字段，不索引，只存储
//一个是内容body字段，进行全文索引，并存储
Document doc = new Document();
doc.add(Field.UnIndexed("path", args[i]));
doc.add(Field.Text("body", (Reader) new InputStreamReader(is)));
//将文档写入索引
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