java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory

at org.apache.catalina.startup.Bootstrap.<clinit>(Bootstrap.java:56)

Caused by: java.lang.ClassNotFoundException: org.apache.juli.logging.LogFactory

at java.net.URLClassLoader$1.run(URLClassLoader.java:200)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:188)

at java.lang.ClassLoader.loadClass(ClassLoader.java:307)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:252)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)

... 1 more

Exception in thread "main"

把我弄得鬱悶得很,我以前在myeclipse7.0中使用tomcat6.0都沒有報這個錯.通過在網上搜索，

解決方法： 
一、開啟myeclipse，Preferentces->MyEclipse->Servers->Tomcat->Tomcat 6.x 
,載入Tomcat7，在"Paths"下，點選“Add JAR/ZIP”,載入tomcat7下的……/bin/tomcat-juli.jar。點選“OK”.

總結：

如果tomcat6.0則不加tomcat-juli.jar的path,tomcat7.0則要像上述方法設定path.