API允许一个设置索引脚本的语言与之交互。如果一个人没有提供默认将使用脚本语言。

访问指标Java API,您需要调用 indices()方法从一个 AdminClient:

IndicesAdminClient indicesAdminClient = client.admin().indices();

client.admin().indices().prepareCreate("twitter").get();

指标设置编辑

每个索引创建可以有与之关联的特定设置。

client.admin().indices().prepareCreate("twitter")
        .setSettings(Settings.builder()       //1      
                .put("index.number_of_shards", 3)
                .put("index.number_of_replicas", 2)
        )
        .get();    //2

client.admin().indices().prepareCreate("twitter")   //1
        .addMapping("tweet", "{n" +                //2
                "    "tweet": {n" +
                "      "properties": {n" +
                "        "message": {n" +
                "          "type": "string"n" +
                "        }n" +
                "      }n" +
                "    }n" +
                "  }")
        .get();

PUT API还允许添加新的类型映射到现有的指数:

client.admin().indices().preparePutMapping("twitter")   //1
        .setType("user")                                //2
        .setSource("{n" +                              //3
                "  "properties": {n" +
                "    "name": {n" +
                "      "type": "string"n" +
                "    }n" +
                "  }n" +
                "}")
        .get();

// You can also provide the type in the source document
client.admin().indices().preparePutMapping("twitter")
        .setType("user")
        .setSource("{n" +
                "    "user":{n" +                   //4     
                "        "properties": {n" +
                "            "name": {n" +
                "                "type": "string"n" +
                "            }n" +
                "        }n" +
                "    }n" +
                "}")
        .get();

您可以使用相同的API来更新现有的映射:

client.admin().indices().preparePutMapping("twitter")  //1 
        .setType("tweet")                               //2
        .setSource("{n" +                              //3
                "  "properties": {n" +
                "    "user_name": {n" +
                "      "type": "string"n" +
                "    }n" +
                "  }n" +
                "}")
        .get();

client.admin().indices().prepareRefresh().get(); //1
client.admin().indices()
        .prepareRefresh("twitter")               //2
        .get();
client.admin().indices()
        .prepareRefresh("twitter", "company")   //3
        .get();

GetSettingsResponse response = client.admin().indices()
        .prepareGetSettings("company", "employee").get();                           
for (ObjectObjectCursor<String, Settings> cursor : response.getIndexToSettings()) { //1
    String index = cursor.key;                                                      //2
    Settings settings = cursor.value;                                               //3
    Integer shards = settings.getAsInt("index.number_of_shards", null);             //4
    Integer replicas = settings.getAsInt("index.number_of_replicas", null);         //5
}//6

client.admin().indices().prepareUpdateSettings("twitter")   //1
        .setSettings(Settings.builder()                     //2
                .put("index.number_of_replicas", 0)
        )
        .get();