solrj设置查询字段

import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.impl.HttpSolrClient;

public class SolrJExample {
    public static void main(String[] args) throws Exception {
        // 创建SolrClient实例
        String solrUrl = "http://localhost:8983/solr/mycollection";
        SolrClient solrClient = new HttpSolrClient.Builder(solrUrl).build();

        // 创建SolrQuery实例
        SolrQuery query = new SolrQuery();
        query.setQuery("keyword");
        
        // 设置查询字段
        query.setFields("field1, field2, field3");

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

        // 处理查询结果
        SolrDocumentList results = response.getResults();
        for (SolrDocument doc : results) {
            // 处理每个文档的字段值
            String field1Value = (String) doc.getFieldValue("field1");
            String field2Value = (String) doc.getFieldValue("field2");
            String field3Value = (String) doc.getFieldValue("field3");
            
            // 进行后续处理
        }

        // 关闭SolrClient连接
        solrClient.close();
    }
}