this web application instance has been stopped already. Could not load [org.apache.zookeeper【端口问题】

// [Curator-ConnectionStateManager-0] org.apache.catalina.loader.WebappClassLoaderbase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [org.apache.zookeeper.ZooKeeperTestable]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
 java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [org.apache.zookeeper.ZooKeeperTestable]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
	at org.apache.catalina.loader.WebappClassLoaderbase.checkStateForResourceLoading(WebappClassLoaderbase.java:1295)
	at org.apache.catalina.loader.WebappClassLoaderbase.checkStateForClassLoading(WebappClassLoaderbase.java:1283)
	at org.apache.catalina.loader.WebappClassLoaderbase.loadClass(WebappClassLoaderbase.java:1148)
	at org.apache.catalina.loader.WebappClassLoaderbase.loadClass(WebappClassLoaderbase.java:1109)
	at org.apache.zookeeper.ZooKeeper.getTestable(ZooKeeper.java:1317)

1.报错说的是WEB项目已经停止，无法启动
解决的方法：网上大部分都是说
找到tomcat目录下conf文件夹下的server.xml
把reloadble的属性值设为：reloadable=“false”

本人经历：我去找了一下我的tomcat的server文件里面并没有这个属性，所以问题不在此（如果找到的同学修改前记得备份）

2.这个项目使用的是zookeeper 和 dubbo ，可能是这个两项的依赖处理问题

    
      org.apache.curator
      curator-framework
      4.1.0
      
        
          org.apache.zookeeper
          zookeeper
        
      
    
     
      org.apache.zookeeper
      zookeeper
      3.5.6
    

b站上有人说可能是版本匹配不上,我根据他的提示，加上了exclusion和我的zookeeper版本3.5.6

但是都还是不行。

最后比对代码发现是自己指定的注册中心的端口错了

这里的2181是我们注册中的端口号，我们打开zkServer.cmd文件成功后是可以看到2181端口的。修改之后我的tomcat就启动成功了