Elasticsearch java客户端调用cat服务

开发环境，测试环境，预发环境和生产环境一般相互隔离的，使用开发环境或者测试环境可以使用cat来查看索引的情况

例如：

但预防环境和测试环境是不允许访问的，那怎么办呢？

可以使用后台来查看上述信息，提供界面交互。

java client如何调用cat服务呢

举例：

            Settings setting=Settings.builder().put("cluster.name", "my-cluster").build();

            TransportClient client=new PreBuiltTransportClient(setting);

            client.addTransportAddress(new TransportAddress(InetAddress.getByName("127.0.0.1"), 9300));

            Map<String, IndexStats> stats=client.admin().indices().stats(new IndicesStatsRequest()).actionGet().getIndices();

            for(IndexStats stat:stats.values()) {

                System.out.println(JSON.toJSONString(stat.getTotal().getDocs()));

            }

输出结果

{"averageSizeInBytes":457,"count":5966,"deleted":150,"fragment":true,"totalSizeInBytes":2798548}

{"averageSizeInBytes":389,"count":11030,"deleted":52,"fragment":true,"totalSizeInBytes":4316958}

{"averageSizeInBytes":545,"count":3516,"deleted":144,"fragment":true,"totalSizeInBytes":1996912}

{"averageSizeInBytes":5154,"count":1,"deleted":0,"fragment":true,"totalSizeInBytes":5154}

{"averageSizeInBytes":394,"count":12717,"deleted":47,"fragment":true,"totalSizeInBytes":5029512}

{"averageSizeInBytes":437,"count":347,"deleted":0,"fragment":true,"totalSizeInBytes":151761}

{"averageSizeInBytes":393,"count":14373,"deleted":147,"fragment":true,"totalSizeInBytes":5709073}

{"averageSizeInBytes":3508,"count":3,"deleted":0,"fragment":true,"totalSizeInBytes":10525}

{"averageSizeInBytes":487,"count":5374,"deleted":288,"fragment":true,"totalSizeInBytes":2762143}

{"averageSizeInBytes":4790,"count":2,"deleted":0,"fragment":true,"totalSizeInBytes":9581}

{"averageSizeInBytes":84,"count":10000,"deleted":0,"fragment":true,"totalSizeInBytes":849464}

{"averageSizeInBytes":6374,"count":1,"deleted":0,"fragment":true,"totalSizeInBytes":6374}

{"averageSizeInBytes":3862,"count":2,"deleted":0,"fragment":true,"totalSizeInBytes":7724}

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Elasticsearch java客户端调用cat服务

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