kafka.errors.KafkaTimeoutError: KafkaTimeoutError: Failed to update metadata after 60.0 secs.

开启zookeeper：
.binwindowszookeeper-server-start.bat .configzookeeper.Properties
开启kafka服务:

D:appkafka>.binwindowskafka-server-start.bat .configserver.properties

创建topic（sqltopic为我的topic名字）
.binwindowskafka-topics.bat --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic sqltopic