2、zookeeper注册中心环境搭建

首先声明我这里是在windows中安装的zookeeper，在linux中安装的步骤一样以及需要修改的地方随机应变就行

首先进入官网http://dubbo.apache.org/zh-cn/blog/download.html下载好zookeeper的安装压缩包

或者用我所用的版本https://pan.baidu.com/s/1AGvd174cWA44iuYOgHCnrQ 提取码czcs

我把安装包放到了D盘的dubboTestEnvironment目录中，等下解压安装也是在这个目录中

解压到当前文件夹中

进入解压后的目录中再进入bin目录有专门在windows中使用zkCli.cmd（客户端）和zkServer.cmd（服务端）

我们先在该目录下打开cmd，然后运行zkServer.cmd

会发现运行的时候会出现错误，说在cof\目录下找不到zoo.cfg文件

原因确实是在cof目录下没有zoo.cfg这个文件，但是有一个zoo_sample.cfg文件

这就是一个示例文件，我们把它复制一份并改名为zoo.cfg

这是zoo.cfg里的原始内容

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/tmp/zookeeper
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1