Job for tomcat-cas.service failed because the control process exited with error code.

这个错误是由于控制进程退出并返回错误代码导致的。
解决方法是首先使用gradlew clean build命令或者.\gradlew clean build命令将cas打成war包，然后将war包上传到服务器上的指定目录，例如/usr/local/tomcat/apache-tomcat-9.0.43/webapps/（根据自己的tomcat安装目录进行修改）。
另外，你也可以在Tomcat的安装目录下的conf文件夹中的server.xml文件中查看Http端口信息。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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