es工具类常用操作方法实现和封装

2026-03-05 19:50:45 +08:00 · 2024-12-11 17:33:28 +08:00
parent b1010828c5
commit 00f70607f5
10 changed files with 480 additions and 111 deletions
--- a/src/main/java/cn/xf/basedemo/config/EsConfig.java
+++ b/src/main/java/cn/xf/basedemo/config/EsConfig.java
@@ -0,0 +1,79 @@
+package cn.xf.basedemo.config;
+
+import co.elastic.clients.elasticsearch.ElasticsearchClient;
+import co.elastic.clients.json.jackson.JacksonJsonpMapper;
+import co.elastic.clients.transport.ElasticsearchTransport;
+import co.elastic.clients.transport.rest_client.RestClientTransport;
+import org.apache.http.HttpHost;
+import org.apache.http.auth.AuthScope;
+import org.apache.http.auth.UsernamePasswordCredentials;
+import org.apache.http.client.CredentialsProvider;
+import org.apache.http.impl.client.BasicCredentialsProvider;
+import org.elasticsearch.client.RestClient;
+import org.elasticsearch.client.RestClientBuilder;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.stereotype.Component;
+
+/**
+ * packageName cn.xf.basedemo.config
+ * @author remaindertime
+ * @className ElasticsearchConfig
+ * @date 2024/12/9
+ * @description es工具类
+ */
+@Component
+public class EsConfig {
+
+    @Value("${elasticsearch.host}")
+    private String elasticsearchHost;
+    @Value("${elasticsearch.port}")
+    private int elasticsearchPort;
+    @Value("${elasticsearch.username}")
+    private String username;
+    @Value("${elasticsearch.password}")
+    private String password;
+
+    /**
+     -最大连接数 (maxConnTotal)：设置总的最大连接数，取决于业务的并发量。500-2000 之间较为合理。
+     -每个节点的最大连接数 (maxConnPerRoute)：控制每个节点的最大连接数，建议 50-100 之间。
+     -IO 线程数 (setIoThreadCount)：根据 CPU 核心数设置，通常为 2-4 倍 CPU 核心数。
+     -连接超时、套接字超时、获取连接超时：一般设置为 10-30 秒，复杂查询或大数据量操作可适当增加到 20-60 秒。
+     -失败监听器 (setFailureListener)：自定义重试和故障处理逻辑，确保高可用性。
+     */
+    @Bean
+    public ElasticsearchClient elasticsearchClient() {
+
+        // 创建凭证提供者
+        CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
+        credentialsProvider.setCredentials(
+                AuthScope.ANY,
+                new UsernamePasswordCredentials(username, password)
+        );
+
+        // 自定义 RestClientBuilder 配置
+        RestClientBuilder restClientBuilder = RestClient.builder(
+                new HttpHost(elasticsearchHost, elasticsearchPort, "http")
+        ).setHttpClientConfigCallback(httpClientBuilder ->
+                httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider) // 配置认证信息
+        );
+        // 配置连接超时、套接字超时、获取连接超时
+        restClientBuilder.setRequestConfigCallback(builder ->
+                builder.setConnectTimeout(20000)
+                        .setSocketTimeout(20000)
+                        .setConnectionRequestTimeout(20000)
+        );
+        // 创建 RestClientTransport 和 ElasticsearchClient
+        RestClient restClient = restClientBuilder.build();
+        ElasticsearchTransport transport = new RestClientTransport(
+                restClient,
+                new JacksonJsonpMapper() // 使用 Jackson 进行 JSON 处理
+        );
+
+        return new ElasticsearchClient(transport);
+    }
+
+    /**
+     window系统本地启动 es8.x 重置密码命令：.\elasticsearch-reset-password -u elastic
+     */
+}