scala下载地址
https://scala-lang.org/files/archive
https://scala-lang.org/files/archive/scala-docs-2.13.5.tgz
https://scala-lang.org/files/archive/scala-2.13.5.tgz
https://downloads.lightbend.com/scala/2.12.13/scala-2.12.13.tgz
spark下载地址
http://archive.apache.org/dist/spark/
zookeeper下载地址
https://archive.apache.org/dist/zookeeper/zookeeper-3.6.2/
kafka下载地址，2.12和2.13的区别在于编译的scala版本。
https://www.apache.org/dyn/closer.cgi?path=/kafka/2.7.0/kafka_2.13-2.7.0.tgz
zookeeper下载地址
https://archive.apache.org/dist/zookeeper/zookeeper-3.6.2/
sbt下载地址
https://www.scala-sbt.org/download.html
kafka manager下载地址
https://github.com/yahoo/kafka-manager