在正常配置zookeeper和kafka后,编写测试代码发现报错了:
java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.kafka.common.network.PlaintextTransportLayer.finishConnect(PlaintextTransportLayer.java:50)
at org.apache.kafka.common.network.KafkaChannel.finishConnect(KafkaChannel.java:216)
at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:531)
at org.apache.kafka.common.network.Selector.poll(Selector.java:483)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:539)
at org.apache.kafka.clients.producer.internals.Sender.runOnce(Sender.java:335)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:244)
at java.lang.Thread.run(Thread.java:748)
20:12:34.033 [kafka-producer-network-thread | producer-1] DEBUG org.apache.kafka.clients.NetworkClient - [Producer clientId=producer-1] Node -1 disconnected.
在网上搜到相关教程,说是修改 /config/server.properties 文件,添加下面这条语句即可
host.name=192.168.137.199
一番操作,报错依旧,终于定位了问题,同样是修改 /config/server.properties ,但是问题点在于
listeners=PLAINTEXT://localhost:9092
将localhost修改为kafka当前的操作系统的地址即可(如果当前java代码所在的操作系统与kafka一致则不需要)。
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