Lucene分页功能

package it.heima.luceneInde;

import org.apache.lucene.document.Document;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.FSDirectory;
import org.junit.Test;

import java.io.File;
import java.io.IOException;

public class Limit {

    @Test
    public void  limit() throws IOException {
        //分页用两个参数
        int page=2;     //第2页
        int pagenum=2; //每页显示2条
        //获取查询对象
        IndexSearcher indexSearcher = new IndexSearcher(DirectoryReader.open(FSDirectory.open(new File("f:\\test"))));
        //执行查询,此处用此处用词条查询
        TermQuery termQuery = new TermQuery(new Term("content","格力"));
        TopDocs topDocs = indexSearcher.search(termQuery, page*pagenum); //第一页显示2条,第二页显示2条+第一页2条=4条
        int totalHits = topDocs.totalHits;//查询总数
        ScoreDoc[] scoreDocs = topDocs.scoreDocs;//查询分数的数组
        for(int i=(page-1)*pagenum;i< page*pagenum;i++){ //选择读取pagenum
            ScoreDoc scoreDoc = scoreDocs[i];
            float score = scoreDoc.score;//获取分数
            int id = scoreDoc.doc;//获取该分数对应的id
            Document doc = indexSearcher.doc(id);//根据id查询文档
            String content = doc.get("content");
            String pid = doc.get("pid");
            System.out.println("序号:"+pid+"-----content="+content);
        }

    }
}
结果:
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