踩坑（5）整合kafka 报错 java.net.UnknownHostException: 不知道这样的主机-Toy模板网

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java.net.UnknownHostException: 不知道这样的主机。 (5c0c3c629db9)
	at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:na]
	at java.base/java.net.InetAddress$PlatformNameService.lookupAllHostAddr(InetAddress.java:933) ~[na:na]
	at java.base/java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1543) ~[na:na]
	at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:852) ~[na:na]
	at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1532) ~[na:na]
	at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1384) ~[na:na]
	at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1305) ~[na:na]
	at org.apache.kafka.clients.DefaultHostResolver.resolve(DefaultHostResolver.java:27) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.ClientUtils.resolve(ClientUtils.java:110) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.ClusterConnectionStates$NodeConnectionState.currentAddress(ClusterConnectionStates.java:510) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.ClusterConnectionStates$NodeConnectionState.access$200(ClusterConnectionStates.java:467) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.ClusterConnectionStates.currentAddress(ClusterConnectionStates.java:173) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.NetworkClient.initiateConnect(NetworkClient.java:990) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.NetworkClient.ready(NetworkClient.java:301) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.sendEligibleCalls(KafkaAdminClient.java:1143) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.processRequests(KafkaAdminClient.java:1403) ~[kafka-clients-3.3.2.jar:na]
	at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.run(KafkaAdminClient.java:1346) ~[kafka-clients-3.3.2.jar:na]
	at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]

解决方式：

将kafka的主机名和服务所在的ip地址配置到C:\Windows\System32\drivers\etc目录下的hosts文件中，并重启服务
例如：

46.93.165.23 		5c0c3c629db9

查看kafka的主机名的方式
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