我就廢話不多說了，大家還是直接看代碼吧~
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/* *es配置類 * */ @Configurationpublic class ElasticSearchDataSourceConfigurer { private static final Logger LOG = LogManager.getLogger(ElasticSearchDataSourceConfigurer.class); @Bean public TransportClient getESClient() { //設置集群名稱 Settings settings = Settings.builder().put("cluster.name", "bigData-cluster").put("client.transport.sniff", true).build(); //創建client TransportClient client = null; try { client = new PreBuiltTransportClient(settings) .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(""), 9300));//集群ip LOG.info("ESClient連接建立成功"); } catch (UnknownHostException e) { LOG.info("ESClient連接建立失敗"); e.printStackTrace(); } return client; } } |
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/** * Simple to Introduction * * @Description: [添加類] */@Repositorypublic class UserDaoImpl implements userDao { private static final String INDEXNAME = "user";//小寫 private static final String TYPENAME = "info"; @Resource TransportClient transportClient; @Override public int addUser(User[] user) { IndexResponse indexResponse = null; int successNum = 0; for (int i = 0; i < user.length; i++) { UUID uuid = UUID.randomUUID(); String str = uuid.toString(); String jsonValue = null; try { jsonValue = JsonUtil.object2JsonString(user[i]); if (jsonValue != null) { indexResponse = transportClient.prepareIndex(INDEXNAME, TYPENAME, str).setSource(jsonValue) .execute().actionGet(); successNum++; } } catch (JsonProcessingException e) { e.printStackTrace(); } } return successNum; } } |
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/** *批量插入 */public static void bathAddUser(TransportClient client, List<User> users) { BulkRequestBuilder bulkRequest = transportClient.prepareBulk(); for (int i = 0; i < users.size(); i++) { UUID uuid = UUID.randomUUID(); String str = uuid.toString(); String jsonValue = null; try { jsonValue = JsonUtil.object2JsonString(users.get(i)); } catch (JsonProcessingException e) { e.printStackTrace(); } bulkRequest.add(client.prepareIndex("user", "info", str).setSource(jsonValue)); // 一萬條插入一次 if (i % 10000 == 0) { bulkRequest.execute().actionGet(); } System.out.println("已經插入第" + i + "多少條"); } } |
補充知識：使用java創建ES(ElasticSearch)連接池
1.首先要有一個創建連接的工廠類
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package com.aly.util; import org.apache.commons.pool2.PooledObject;import org.apache.commons.pool2.PooledObjectFactory;import org.apache.commons.pool2.impl.DefaultPooledObject;import org.apache.http.HttpHost;import org.elasticsearch.client.RestClient;import org.elasticsearch.client.RestHighLevelClient; /** * EliasticSearch連接池工廠對象 * @author 00000 * */public class EsClientPoolFactory implements PooledObjectFactory<RestHighLevelClient>{ @Override public void activateObject(PooledObject<RestHighLevelClient> arg0) throws Exception { System.out.println("activateObject"); } /** * 銷毀對象 */ @Override public void destroyObject(PooledObject<RestHighLevelClient> pooledObject) throws Exception { RestHighLevelClient highLevelClient = pooledObject.getObject(); highLevelClient.close(); } /** * 生產對象 */// @SuppressWarnings({ "resource" }) @Override public PooledObject<RestHighLevelClient> makeObject() throws Exception {// Settings settings = Settings.builder().put("cluster.name","elasticsearch").build(); RestHighLevelClient client = null; try { /*client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("localhost"),9300));*/ client = new RestHighLevelClient(RestClient.builder( new HttpHost("192.168.1.121", 9200, "http"), new HttpHost("192.168.1.122", 9200, "http"), new HttpHost("192.168.1.123", 9200, "http"), new HttpHost("192.168.1.125", 9200, "http"), new HttpHost("192.168.1.126", 9200, "http"), new HttpHost("192.168.1.127", 9200, "http"))); } catch (Exception e) { e.printStackTrace(); } return new DefaultPooledObject<RestHighLevelClient>(client); } @Override public void passivateObject(PooledObject<RestHighLevelClient> arg0) throws Exception { System.out.println("passivateObject"); } @Override public boolean validateObject(PooledObject<RestHighLevelClient> arg0) { return true; } } |
2.然后再寫我們的連接池工具類
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package com.aly.util; import org.apache.commons.pool2.impl.GenericObjectPool;import org.apache.commons.pool2.impl.GenericObjectPoolConfig;import org.elasticsearch.client.RestHighLevelClient; /** * ElasticSearch 連接池工具類 * * @author 00000 * */public class ElasticSearchPoolUtil { // 對象池配置類，不寫也可以，采用默認配置 private static GenericObjectPoolConfig poolConfig = new GenericObjectPoolConfig(); // 采用默認配置maxTotal是8，池中有8個client static { poolConfig.setMaxTotal(8); } // 要池化的對象的工廠類，這個是我們要實現的類 private static EsClientPoolFactory esClientPoolFactory = new EsClientPoolFactory(); // 利用對象工廠類和配置類生成對象池 private static GenericObjectPool<RestHighLevelClient> clientPool = new GenericObjectPool<>(esClientPoolFactory, poolConfig); /** * 獲得對象 * * @return * @throws Exception */ public static RestHighLevelClient getClient() throws Exception { // 從池中取一個對象 RestHighLevelClient client = clientPool.borrowObject(); return client; } /** * 歸還對象 * * @param client */ public static void returnClient(RestHighLevelClient client) { // 使用完畢之后，歸還對象 clientPool.returnObject(client); }} |
以上這篇java連接ElasticSearch集群操作就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/baidu_16217779/article/details/71633284
