Java :在elasticsearch中搜索索引中的多个字段

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

public class ElasticsearchSearchExample {
    public static void main(String[] args) {
        try {
            RestHighLevelClient client = new RestHighLevelClient(
                    RestClient.builder(new HttpHost("localhost", 9200, "http")));

            SearchRequest searchRequest = new SearchRequest("your_index_name");
            SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
            searchSourceBuilder.query(QueryBuilders.matchQuery("field1", "keyword1"));
            searchSourceBuilder.query(QueryBuilders.matchQuery("field2", "keyword2"));
            searchRequest.source(searchSourceBuilder);

            SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);

            // 处理搜索结果
            // ...

            client.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}