es模糊查询用java实现

可以使用Java中的Elasticsearch Java API来实现ES模糊查询。下面是一个简单的示例代码：

import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;
import java.io.IOException;

public class ESQueryExample {
    public static void main(String[] args) throws IOException {
        RestHighLevelClient client = new RestHighLevelClient();
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
        QueryBuilder queryBuilder = QueryBuilders.fuzzyQuery("field_name", "search_term");
        sourceBuilder.query(queryBuilder);
        SearchRequest searchRequest = new SearchRequest("index_name");
        searchRequest.source(sourceBuilder);
        SearchResponse searchResponse = client.search(searchRequest);
        SearchHits hits = searchResponse.getHits();
        for (SearchHit hit : hits) {
            System.out.println(hit.getSourceAsString());
        }
        client.close();
    }
}

在上面的代码中，我们使用了ES的Fuzzy Query来实现模糊查询。其中，"field_name"是要查询的字段名，"search_term"是要查询的关键词。你需要将"index_name"替换成你要查询的索引名称，然后就可以运行代码来进行查询了。