ElasticSearch Java REST客户端创建

ElasticSearch Java REST客户端创建

1.低级客户端创建

2.高级客户端创建

3.安全验证高级客户端创建（带用户名和密码）

4.Java REST高级客户端 maven配置

对人工智能感兴趣点下面链接

现在人工智能非常火爆，很多朋友都想学，但是一般的教程都是为博硕生准备的，太难看懂了。最近发现了一个非常适合小白入门的教程，不仅通俗易懂而且还很风趣幽默。所以忍不住分享一下给大家。点这里可以跳转到教程。

https://www.cbedai.net/u014646662

1.低级客户端创建

	/**
	 * 获取低级客户端
	 * 
	 * @return
	 */
	private static RestClient getLowClient() {
		RestClient client = RestClient.builder(new HttpHost("elk-node01", 9200, "http"),
				new HttpHost("elk-node02", 9200, "http"), new HttpHost("elk-node03", 9200, "http")).build();
		return client;
	}

2.高级客户端创建

/**
	 * 获取客户端
	 * 
	 * @return
	 */
	private static RestHighLevelClient getClient() {
		RestHighLevelClient client = new RestHighLevelClient(
				RestClient.builder(new HttpHost("elk-node01", 9200, "http"), new HttpHost("elk-node02", 9200, "http"),
						new HttpHost("elk-node03", 9200, "http")));
		return client;
	}

3.安全验证高级客户端创建（带用户名和密码）

最简获取

public static RestHighLevelClient createClient(String user,String passwd) throws Exception {

		RestClientBuilder restClientBuilder = RestClient.builder(new HttpHost("192.168.68.101", 9200, "http"),new HttpHost("192.168.68.102", 9200, "http"),new HttpHost("192.168.68.103", 9200, "http"));
		final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
		credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(user, passwd));
		// 认证
		restClientBuilder.setHttpClientConfigCallback(httpClientBuilder -> httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider));
		RestHighLevelClient restHighLevelClient = new RestHighLevelClient(restClientBuilder);
		return restHighLevelClient;
	}

增加部分参数

public static RestHighLevelClient createClient1(String user,String passwd) throws Exception {

		RestClientBuilder restClientBuilder = RestClient.builder(new HttpHost("192.168.68.102", 9200, "http"),
				new HttpHost("192.168.68.103", 9200, "http"));

		final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
		credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(user, passwd));

		// 认证和线程数
		restClientBuilder.setHttpClientConfigCallback(httpClientBuilder -> {
			httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
			int threadCount = 10;
			httpClientBuilder.setDefaultIOReactorConfig(IOReactorConfig.custom().setIoThreadCount(threadCount).build());

			return httpClientBuilder;
		});

		// 超时超时设置
		restClientBuilder.setRequestConfigCallback(requestConfigCallback -> {
			requestConfigCallback.setConnectTimeout(10);
			requestConfigCallback.setSocketTimeout(10);
			return requestConfigCallback;
		});
		RestHighLevelClient restHighLevelClient = new RestHighLevelClient(restClientBuilder);
		return restHighLevelClient;
	}

4.Java REST高级客户端 maven配置

maven配置：https://blog.csdn.net/u014646662/article/details/97895028