缺少zookeeper的jar包引入
zookeeper的jar包引入Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.WatcherEventEventEventKeeperState<dependency><groupId>org.apache.zookeeper</groupId><...
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zookeeper的jar包引入
Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.WatcherEventEventEventKeeperState
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.9</version>
</dependency>
这个ClassNotFoundException的异常,一般来说都是jar包缺失,或者版本号的问题,zk的Watcher即使能够找到,有时候也会报这个异常
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
</dependency>

这样的话,就会导致zk的重复引用,且两层引用的版本不一致,导致zk的实例化不能正常进行,所以就会出现ClassNotFoundException的异常信息
一般来说,在依赖zkclient的时候,需要将zookeeper的依赖过滤掉
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
这样便不会有依赖重复jar包的问题
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