MyEclipse8.5集成Tomcat8时的启动错误：Exception in thread “main” java.lang.NoClassDefFoundError

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一、问题描述：

在MyEclipse8.5中集成配置Tomcat7后，在MyEclipse启动Tomcat服务则出现如下错误提示： 

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory
at org.apache.catalina.startup.Bootstrap.<clinit>(Bootstrap.java:52)
Caused by: java.lang.ClassNotFoundException: org.apache.juli.logging.LogFactory
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

... 1 more

二、解决办法：

通过如下操作，问题解决：Window->Preferences->MyEclipse->Servers->Tomcat->Tomcat 6.x->Laucch->Create Launch Configuration->Classpath->Bootstrap Entities->Add External JARs->选择并填加D:\Tools\apache-tomcat-8.0.24\bin\tomcat-juli.jar 就OK啦！