Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory
at org.apache.catalina.startup.Bootstrap.

Preferentces->MyEclipse->Servers->Tomcat->Tomcat 6.x->Paths
点击“Add JAR/ZIP”,加载tomcat7目录下的/bin/tomcat-juli.jar。点击“OK”.