java RestHighLevelClient常用操作

jar版本7.6.2

1、索引是否存在

boolean exists = reportESClient.indices().exists(new GetIndexRequest(indexName), RequestOptions.DEFAULT);
if (!exists) {
    CreateIndexRequest createIndexRequest = new CreateIndexRequest(indexName);
    createIndexRequest.source(index_mappings, XContentType.JSON);//创建索引

    reportESClient.indices().create(createIndexRequest, RequestOptions.DEFAULT);
    return null;
}

2、创建索引

private static final String index_mappings = "{\n" +
        "    \"mappings\" : {\n" +
        "      \"properties\" : {\n" +
        "        \"updateTime\" : {\n" +
        "          \"type\" : \"date\",\n" +
        "          \"format\" : \"yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis\"\n" +
        "        },\n" +
        "        \"id\" : {\n" +
        "          \"type\" : \"keyword\"\n" +
        "        },\n" +
        "        \"managePrice\" : {\n" +
        "          \"type\" : \"integer\"\n" +
        "        },\n" +
        "        \"orderNo\" : {\n" +
        "          \"type\" : \"keyword\"\n" +
        "        }\n" +
        "      }\n" +
        "    }\n" +
        "}";

CreateIndexRequest createIndexRequest = new CreateIndexRequest(indexName); createIndexRequest.source(index_mappings, XContentType.JSON);//创建索引 reportESClient.indices().create(createIndexRequest, RequestOptions.DEFAULT);

3、保存

UpdateRequest updateRequest = new UpdateRequest();
updateRequest.id(orderNo);
updateRequest.index(indexName);
updateRequest.doc(JSON.toJSONString(esManagePriceEntity), XContentType.JSON);
updateRequest.docAsUpsert(true);
UpdateResponse updateResponse = reportESClient.update(updateRequest, RequestOptions.DEFAULT);

4、删除

DeleteRequest deleteRequest = new DeleteRequest(); deleteRequest.id(dto.getOrderNo()); deleteRequest.index(indexName); DeleteResponse deleteResponse = reportESClient.delete(deleteRequest, RequestOptions.DEFAULT); System.out.println("deleteResponse:" + JSON.toJSONString(deleteResponse));

参考

 Java High Level REST Client 之 创建索引 

Date datatype | Elasticsearch Guide [7.6] | Elastic

Elasticsearch中的date查询_elasticsearch 查询date_Venele的博客-CSDN博客