ElasticSearch java api -单例模式
//单例模式 private static Settings getSettingInstance(){ if(settings==null){ synchronized (Settings.class) { if(settings==null){ settings = ImmutableSettings.settingsBuilder() // client.transport.sniff=true // 客户端嗅探整个集群的状态，把集群中其它机器的ip地址自动添加到客户端中，并且自动发现新加入集群的机器 .put("client.transport.sniff", true).put("client", true)// 仅作为客户端连接 .put("data", false).put("cluster.name", clustername)// 集群名称 .build(); } } } return settings; } //单例模式 private static TransportClient client; private static TransportClient getIstance() { if (client == null) { //同步代码块（对象未初始化时，使用同步代码块，保证多线程访问时对象在第一次创建后，不再重复被创建） synchronized (TransportClient.class) { if (client == null) { client = new TransportClient(getSettingInstance()).addTransportAddress(new InetSocketTransportAddress(hostname, Integer.parseInt(port1)))// TCP // 连接地址 .addTransportAddress(new InetSocketTransportAddress(hostname, Integer.parseInt(port2))); } } } return client; } /** * 创建索引 写入elasticsearch * * @param jsonlist * 要创建索引的jsonlist数据 */ public static void createIndex(List<JSONObject> jsonlist) { searchRequestBuilder = getIstance().prepareSearch(index); try { // 创建索引 for (int i = 0; i < jsonlist.size(); i++) { IndexResponse indexResponse = client.prepareIndex(index, type, jsonlist.get(i).getString("id")).setSource(jsonlist.get(i).toString()) .execute().actionGet(); if (indexResponse.isCreated()) { System.out.println("创建成功!"); } else { System.out.println("创建失败！"); } } } catch (Exception e) { e.printStackTrace(); } }
