我正在使用Java通过在我的代码中动态生成查询来从elastic search中获取一些记录。该查询接受一个字符串

import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;

public class ElasticsearchExample {
    public static void main(String[] args) {
        // 创建Elasticsearch客户端
        RestHighLevelClient client = new RestHighLevelClient();

        // 创建查询请求
        SearchRequest searchRequest = new SearchRequest("index_name");
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        
        // 动态生成查询
        String queryString = "your_query_string";
        searchSourceBuilder.query(QueryBuilders.matchQuery("field_name", queryString));
        
        searchRequest.source(searchSourceBuilder);

        try {
            // 执行查询
            SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
            
            // 处理查询结果
            // ...
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 关闭Elasticsearch客户端
            try {
                client.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}