本项目旨在提供一个基于Apache Lucene的全文搜索引擎实现方案,并集成IKAnalyzer中文分词器以支持高效精准的中文搜索功能。
一、Lucene全文检索的Java代码:
```java
package com.zcm.lucene;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.queryParser.MultiFieldQueryParser;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import java.io.File;
public class LuceneUtil {
public static String LucenePath = D:/LuceneIndex; // 设置索引路径
/**
* 创建全文检索的索引
*/
public void createIndex(List list) {
IndexWriter writer = new IndexWriter(LucenePath, new StandardAnalyzer(), true);
for (int i=0; i getWords(String word){
StandardAnalyzer analyzer = new StandardAnalyzer();
TokenStream stream = analyzer.tokenStream(word,word);
CharTermAttribute attr = stream.addAttribute(CharTermAttribute.class);
try {
stream.reset(); // 重置流
while (stream.incrementToken()) {
String termStr = attr.toString();
if (!termStr.trim().equals()) {
System.out.println(termStr); // 输出词语
}
}
stream.end();
} catch (IOException e) {
e.printStackTrace();
}
return null; // 返回null,此处仅为示例代码
}
/**
* 获取全文检索索引数量(条目)
*/
public int getIndexCount() throws IOException{
IndexReader reader = IndexReader.open(new File(LucenePath));
int count = reader.numDocs();
return count;
}
}
```
二、Lucene用到的JavaBean代码:
```java
package com.zcm.lucene;
/**
* Apache Lucene全文检索用到的Bean
*/
public class LuceneVO {
private Integer aid; // 文章ID
private String title; // 文章标题
private String remark; // 文章摘要
public Integer getAid() {
return aid;
}
public void setAid(Integer aid) {
this.aid = aid;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getRemark() {
return remark;
}
public void setRemark(String remark) {
this.remark = remark;
}
}
```
以上代码实现了Apache Lucene全文检索的基本功能,包括创建索引、获取词语列表以及查询和管理文档。