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Unable to ping server at localhost 1099 - 出现的原因

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之前老是出现

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Application Server was not connected before run configuration stop, 
reason: Unable to ping server at localhost:1099

我遇到这个问题一般是这些原因：

  1. 这个端口被占用，一般进程管理把所有Java进程杀了可以解决
  2. 由于在IDEA中错误的给tomcat添加了参数,比如下面这个。去掉即可

这是下VM option中加了：-URIEncoding=UTF-8

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Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Unrecognized option: -URIEncoding=UTF-8
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