无法通过JAVA连接到Solr应用程序

import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.SolrQuery;
import import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocumentList;

public class SolrExample {
    public static void main(String[] args) {
        // 创建SolrClient对象
        SolrClient solrClient = new HttpSolrClient.Builder("http://localhost:8983/solr").build();

        // 创建Solr查询对象
        SolrQuery query = new SolrQuery();
        query.setQuery("keyword");

        try {
            // 执行查询
            QueryResponse response = solrClient.query(query);

            // 处理查询结果
            SolrDocumentList results = response.getResults();
            for (SolrDocument doc : results) {
                // 处理每个文档
                System.out.println(doc.getFieldValue("id"));
                System.out.println(doc.getFieldValue("title"));
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 关闭SolrClient连接
            solrClient.close();
        }
    }
}