lucene中创建索引库

package com.hope.lucene;

import org.apache.commons.io.FileUtils;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.junit.Test;

import java.io.File;


/**
 * @author newcityman
 * @date 2020/1/15 - 0:01
 */
public class LuceneFirst {
 @Test
 public void createIndex() throws Exception{
 //1、创建一个Director对象，指定索引库保存的位置
 //把索引库保存到磁盘
 Directory directory = FSDirectory.open(new File("G:\\workspace_idea3\\lucene\\temp\\index").toPath());
 //2、基于Directory对象，创建一个IndexWriter对象
 IndexWriter indexWriter = new IndexWriter(directory,new IndexWriterConfig());
 //3、读取磁盘上的文件，对应每个文件创建一个文档对象
 File file = new File("G:\\workspace_idea3\\lucene\\temp\\searchsource");
 File[] files = file.listFiles();
 for (File f : files) {
 //取文件名
 String fileName = f.getName();
 //取文件路径
 String filePath = f.getPath();
 //取文件内容
 String fileContent = FileUtils.readFileToString(f, "utf-8");
 //文件大小
 long fileSize = FileUtils.sizeOf(f);

 //创建Field
 TextField fieldName = new TextField("name", fileName, Field.Store.YES);
 TextField fieldPath = new TextField("path", filePath, Field.Store.YES);
 TextField fieldContent = new TextField("content", fileContent, Field.Store.YES);
 TextField fieldSize = new TextField("size", fileSize+"", Field.Store.YES);
 
 //4、向文档对象中添加Field
 //创建文档
 Document document = new Document();
 document.add(fieldName);
 document.add(fieldPath);
 document.add(fieldContent);
 document.add(fieldSize);
 //5、把文档对象写入到索引库中
 indexWriter.addDocument(document);
 }
 //6、关闭indexWriter对象
 indexWriter.close();
 }
}