用Java写一个方法，功能为查询es数据库，返回结果为对象数组

好的，以下是Java代码示例，用于查询ES数据库并返回对象数组：

public Object[] searchES(String index, String query) {
    // 连接ES数据库
    RestHighLevelClient client = new RestHighLevelClient(
            RestClient.builder(
                    new HttpHost("localhost", 920, "http")));

    // 构建查询请求
    SearchRequest searchRequest = new SearchRequest(index);
    SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
    searchSourceBuilder.query(QueryBuilders.matchQuery("field", query));
    searchRequest.source(searchSourceBuilder);

    // 执行查询请求
    SearchResponse searchResponse;
    try {
        searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }

    // 解析查询结果
    SearchHits hits = searchResponse.getHits();
    List<Object> resultList = new ArrayList<>();
    for (SearchHit hit : hits) {
        Map<String, Object> sourceAsMap = hit.getSourceAsMap();
        // 将查询结果转换为对象
        Object result = convertToObj(sourceAsMap);
        resultList.add(result);
    }

    // 关闭连接
    try {
        client.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

    // 返回对象数组
    return resultList.toArray();
}

// 将Map转换为对象的方法，需要根据具体业务逻辑实现
private Object convertToObj(Map<String, Object> sourceAsMap) {
    // TODO: 根据具体业务逻辑实现
    return null;
}

以上代码示例仅供参考，具体实现需要根据具体业务逻辑进行调整。