2011-4-13 15:40:52 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 严重: A web application registered the JBDC driver [oracle.jdbc.driver.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 将mysql 的JDBC驱动拷到tomcat中的lib后，解决