如何在Lucene6中对IntPont或LongPoint字段排序

import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.IntPoint;
import org.apache.lucene.document.LongPoint;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.Sort;
import org.apache.lucene.search.SortField;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;

import java.io.IOException;

public class LuceneSortExample {
    public static void main(String[] args) throws IOException {
        // 创建内存索引
        Directory directory = new RAMDirectory();
        IndexWriterConfig config = new IndexWriterConfig();
        IndexWriter writer = new IndexWriter(directory, config);

        // 添加测试文档
        Document doc1 = new Document();
        doc1.add(new IntPoint("id", 1));
        doc1.add(new LongPoint("timestamp", 1000L));
        writer.addDocument(doc1);

        Document doc2 = new Document();
        doc2.add(new IntPoint("id", 2));
        doc2.add(new LongPoint("timestamp", 2000L));
        writer.addDocument(doc2);

        writer.commit();
        writer.close();

        // 创建搜索器
        IndexSearcher searcher = new IndexSearcher(writer.getReader());

        // 创建查询
        Query query = new TermQuery(new Term("id", "1"));

        // 创建排序字段
        SortField idSortField = new SortField("id", SortField.Type.INT);
        SortField timestampSortField = new SortField("timestamp", SortField.Type.LONG);

        // 创建排序对象
        Sort sort = new Sort(idSortField, timestampSortField);

        // 执行搜索并按排序结果返回文档
        searcher.search(query, 10, sort);
    }
}