安装运行zookeeper的坑

从官网下载zookeeper的地址中有俩文件
一个是apache-zookeeper-3.5.5.tar.gz ，另一个是apache-zookeeper-3.5.5-bin.tar.gz

若是使用前者，运行的话会报错：Error: Could not find or load main class org.apache.zookeeper.server.quorum.QuorumPeerMain
通过查看解压缩后的文件README.md，可以知道

apache-zookeeper-[version].tar.gz

        Contains all the source files which can be built by running:
        mvn clean install

        To generate an aggregated apidocs for zookeeper-server and zookeeper-jute:
        mvn javadoc:aggregate
        (generated files will be at target/site/apidocs)

还需要安装maven，然后再运行mvn clean install 和mvn javadoc:aggregate，前一个命令会下载安装好多jar包，不知道要花多长时间

另外可知

    apache-zookeeper-[version]-bin.tar.gz

        Contains all the jar files required to run ZooKeeper
        Full documentation can also be found in the docs folder

带bin的这个文件已经自带所需要的各种jar包，不用再安装了

果断使用这个apache-zookeeper-3.5.5-bin.tar.gz文件，放弃apache-zookeeper-3.5.5.tar.gz 文件。