Caused by: java.lang.IllegalArgumentException: Could not find a ‘KafkaClient‘ entry in the JAAS conf-Toy模板网

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针对找不到jaas.conf文件避坑：

Exception in thread "main" org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
	at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:820)
	at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:666)
	at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:646)
	at com.kafka.Consumer.<init>(Consumer.java:79)
	at com.kafka.Consumer.main(Consumer.java:154)
Caused by: java.lang.IllegalArgumentException: Could not find a 'KafkaClient' entry in the JAAS configuration. System property 'java.security.auth.login.config' is not set
	at org.apache.kafka.common.security.JaasContext.defaultContext(JaasContext.java:133)
	at org.apache.kafka.common.security.JaasContext.load(JaasContext.java:98)
	at org.apache.kafka.common.security.JaasContext.loadClientContext(JaasContext.java:84)
	at org.apache.kafka.common.network.ChannelBuilders.create(ChannelBuilders.java:124)
	at org.apache.kafka.common.network.ChannelBuilders.clientChannelBuilder(ChannelBuilders.java:67)
	at org.apache.kafka.clients.ClientUtils.createChannelBuilder(ClientUtils.java:99)
	at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:741)
	... 4 more

问题前提：

运行程序命令：java -cp ------------

解决办法（这只是一种很难注意到的细节，其他原因还需再次排查）：

运行命令需要在跟配置文件同级目录下运行。如：你的配置文件在/tmp/resources下，你的命令需要在/tmp下运行即可。文章来源地址https://www.toymoban.com/news/detail-536429.html

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