出现错误如图：
- java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory
- at org.apache.catalina.startup.Bootstrap.<clinit>(Bootstrap.java:55)
- Caused by: java.lang.ClassNotFoundException: org.apache.juli.logging.LogFactory
- at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
- at java.security.AccessController.doPrivileged(Native Method)
- at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
- at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
- at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
- at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
- ... 1 more
解决方法：
点击windows→Perferences
如图，将tomcat bin目录下的tomcat-juli.jar文件加入到tomcat 运行的classpath中
进行测试，一切正常啦：
