首先需要做的是下载相关的jar包,下载地址是:http://lucene.apache.org/core/downloads.html
其次,在正式介绍下面的内容之前,至少需要导入以下三个jar包:
lucene-analyzers-common-6.2.1.jar
lucene-core-6.2.1.jar
lucene-queryparser-6.2.1.jar
基于内存的全文索引示例代码如下:
package cn.zifangsky.lucene;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
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.StringField;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
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.store.Directory;
import org.apache.lucene.store.RAMDirectory;
public class Demo1 {
/**
* 创建索引
*
* @param sourceMap
* 待索引的内容
* @return
*/