kafka基础以及相关cmd操作

kafka：基于发布订阅模式（一对多）

消息队列：解耦，提高通信效率

同步异步

启动kafka时出现

修改第179行，将里面的%classPath%修改为"%classPath"即可

cmd code,下面有截取相关的界面

# start zookeeper service (port: 2181)
bin\windows\zookeeper-server-start.bat config\zookeeper.properties

# start kafka broker serivce (port: 9092)
bin\windows\kafka-server-start.bat config\server.properties

# create a new kafka topic "test"
bin\windows\kafka-topics.bat --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test

# list out all kafka topic
bin\windows\kafka-topics.bat --list --zookeeper localhost:2181

# describe specific kafka topic "test"
bin\windows\kafka-topics.bat --describe --zookeeper localhost:2181 --topic test

# publish data to specific kafka topic "test"
bin\windows\kafka-console-producer.bat --broker-list localhost:9092 --topic test

>Hello
>Hello2

# publish data with key & value to specific kafka topic "test"
bin\windows\kafka-console-producer.bat --broker-list localhost:9092 ^
--topic test ^
--property "parse.key=true" ^
--property "key.separator=:"

>8703147:Hello3
>8703147:Hello4

# subscribe specific kafka topic "test"
bin\windows\kafka-console-consumer.bat --bootstrap-server localhost:9092 --topic test --from-beginning

# subscribe specific kafka topic "test" with key & value displayed
bin\windows\kafka-console-consumer.bat --bootstrap-server localhost:9092 --topic test --from-beginning --property print.key=true --property key.separator=":"

大致的操作界面

kafkaAPI使用参考：https://blog.csdn.net/wangzhanzheng/article/details/80801059