ES6.1.3常用java操作

柔光的暖阳◎ 2023-06-23 11:53 93阅读 0赞

**1.查询所有index名称**

TransportClient client = EsOperation.getInstance(); 
    		
    //获取所有索引
    ActionFuture<IndicesStatsResponse> isr = client.admin().indices().stats(new IndicesStatsRequest().all());
    Set<String> set = isr.actionGet().getIndices().keySet();
    for(String s:set)
    { 
    	System.out.println(s);
    }

**2.创建index，并配置mapping**

TransportClient client = EsOperation.getInstance();
    String mapping_str = "{"+
    		        "\"properties\":{"+
    					"\"host_ip\":{"+
    						"\"type\":\"ip\","+
    						"\"fields\":{"+
    							"\"keyword\":{"+
    								"\"type\":\"keyword\","+
    								"\"ignore_above\":256}}},"+
    						"\"time\":{"+
    							"\"type\":\"date\"},"+
    						}}";
    client.admin().indices().prepareCreate(indexName).execute().actionGet();
    PutMappingRequest putMappingRequest = Requests.putMappingRequest(indexName).type("doc").source(mapping_str , XContentType.JSON);
    client.admin().indices().putMapping(putMappingRequest).actionGet();

**3.批量插入**

TransportClient client = EsOperation.getInstance(); 
    String log = "{" +
    		        "\"host_ip\":\"10.43.28.12\"," +
    		        "\"time\":\"2013-04-30T12:00:00\"" +
    		        "}";
    BulkRequestBuilder request = client.prepareBulk();
    IndexRequest indexReq = new IndexRequest(indexName);
    indexReq.type("logs");
    indexReq.source(log, XContentType.JSON);
    request.add(indexReq);//添加数据
    BulkResponse bulkResponse = request.execute().actionGet();
    if(bulkResponse.hasFailures()){ 
        System.out.println("error: " + bulkResponse.buildFailureMessage());
    }

**4.删除index**

TransportClient client = EsOperation.getInstance();
    DeleteIndexResponse dResponse = client.admin().indices().prepareDelete(indexName).execute().actionGet();
    if(dResponse.isAcknowledged())
    { 
    	System.out.println("删除成功");
    }