Springboot整合Elasticsearch 提示：NoNodeAvailableException[None of the configured nodes are available

怼烎@ 2023-10-18 14:58 131阅读 0赞

Window 搭建完Elasticseach 环境，使用localhost 本机都能够正常访问Elasticsearch 环境，使用Springboot +集成elasticsearch 提示如下错误信息：NoNodeAvailableException\[None of the configured nodes are available

大意是：配置文件中没有可以使用的节点。

springboot 通过配置文件封装TransportClient 实体对象源码如下：

package com.zzg.search.config;
    
    import java.net.InetAddress;
    import java.net.UnknownHostException;
    
    import org.elasticsearch.client.transport.TransportClient;
    import org.elasticsearch.common.settings.Settings;
    import org.elasticsearch.common.transport.TransportAddress;
    import org.elasticsearch.transport.client.PreBuiltTransportClient;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.stereotype.Component;
    
    import com.zzg.search.exception.ClientException;
    
    import lombok.extern.slf4j.Slf4j;
    
    @Component
    @ConfigurationProperties(prefix = "esconfig") 
    @Slf4j
    public class ESConfig {
    	@Value("${esconfig.host}")
    	private String hostName;
    	@Value("${esconfig.port}")
    	private int port; 
    	@Value("${esconfig.cluster}")
    	private String clusterName;
    	
    	@Bean
        public TransportClient client() {
            // 9300是es的tcp服务端口
    		TransportAddress node = null;
    		try{
    			node = new TransportAddress(
                    InetAddress.getByName(hostName),
                    9300);
    		}catch(UnknownHostException e){
    			// 打印错误信息，并且抛出错误异常
    			log.error(e.getMessage());
    			throw new ClientException(null, e.getMessage());
    		}
            // 设置es节点的配置信息
            Settings settings = Settings.builder()
                    .put("cluster.name", clusterName)
                    .build();
    
            // 实例化es的客户端对象
            TransportClient client = new PreBuiltTransportClient(settings);
            client.addTransportAddress(node);
            
          
            
            return client;
        }
    	
    
    }

application.yml 中的配置文件（错误配置）：

### elasticsearch 配置 #######
    esconfig:
        host: 192.168.1.74
        port: 9300
        cluster: cluster-name

解决办法：

修改es配置文件（C:\\elasticsearch\\elasticsearch-6.3.2\\config\\elasticsearch.yml），  
修改network.host  
network.host：服务器IP地址

![20190301095802629.png][]

补充说明：

如果你的java代码连接方式为下面的代码，要在配置文件中存在这个集群名称

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70][]

注意一下，cluster.name在es配置文件（C:\\elasticsearch\\elasticsearch-6.3.2\\config\\elasticsearch.yml）存在。如下图所示：

![20190301100139527.png][]

cluster.name的名字要在配置文件中存在，否则还会报上面的错误。

[20190301095802629.png]: https://img-blog.csdnimg.cn/20190301095802629.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20190301100031386.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n,size_16,color_FFFFFF,t_70
[20190301100139527.png]: https://img-blog.csdnimg.cn/20190301100139527.png

Springboot整合Elasticsearch 提示：NoNodeAvailableException[None of the configured nodes are available

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