<!-- https://mvnrepository.com/artifact/org.elasticsearch.client/transport -->

        <dependency>

            <groupId>org.elasticsearch.client</groupId>

            <artifactId>transport</artifactId>

        </dependency>

    /**

     *  初始化TransportClient对象， 这里只配置了单个节点，例如100.100.0.1:8090

     */

    private TransportClient initClient() throws UnknownHostException {

        String node = esSetting.getClusterNodes();

        int index = node.indexOf(":");

        String host = node.substring(0, index);

        int port = Integer.valueOf(node.substring(index + 1));

        Settings settings = Settings.builder()

                //elasticsearch节点名称

                .put("cluster.name", esSetting.getClusterName())

                .put("client.transport.sniff", true).build();

        InetAddress address = InetAddress.getByName(host);

        TransportClient client = new PreBuiltTransportClient(settings);

        client.addTransportAddress(new InetSocketTransportAddress(address, port));

        return client;

    }

        //查询，根据数据中date字段查询， 这里是最常用的boolQuery示例，可以通过must、must_not、filter等方法设定查询条件

        QueryBuilder queryBuilder = QueryBuilders.boolQuery()

                .must(QueryBuilders.rangeQuery("date").gte("2018-11-08T00:00:00.000Z")

                        .lt("2018-11-09T00:00:00.000Z"));

        //elasticsearch索引及类型，对应数据库中数据库和表

        String index = "index";

        String type = "type";

        SearchResponse response = client.prepareSearch(index)

                .setTypes(type).addSort("date", SortOrder.ASC)

                .setSize(1000).setQuery(queryBuilder).execute()

                .actionGet();

        long total = response.getHits().getTotalHits();

        try {

            XContentBuilder builder = XContentFactory.jsonBuilder()

                    .startObject().field("date", "2018-11-08T00:00:00.000Z")

                    .field("cost", 10);

            builder.endObject();

            IndexResponse response = client

                    .prepareIndex(index, type)

                    .setSource(builder).get();

        } catch (Exception e) {

            e.printStackTrace();

        }