当tomcat关闭时,我在catalina.out日志文件中得到以下消息。我正在使用Tomcat 7.x和Tomcat JDBC数据源。tomcat7 - jdbc datasource - 这很可能会造成内存泄漏
Mar 26, 2013 1:17:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [/my_webapp] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Mar 26, 2013 1:17:52 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/my_webapp] appears to have started a thread named [MySQL Statement Cancellation Timer] but has failed to stop it. This is very likely to create a memory leak.
第一个声称数据源已被强制注销,因此没有问题。然而,这很奇怪,因为我已经配置了这样的破坏方法:
<bean name="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/mydb"/>
<property name="username" value="root"/>
<property name="password" value="password"/>
</bean>
不知道为什么我得到第二个。关于“MySQL语句取消计时器”的一个。
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编辑1: 我试图通过@Zelldon建议的修正,它摆脱了第一个错误。但MySQL Statement Cancellation Timer
相关问题仍然存在
可能重复[如何解决内存泄漏问题?](http://stackoverflow.com/questions/10615118/how-to-solve-memory-leak-problems) – OhadR 2016-12-12 12:45:21
请参阅此注释以了解有关MySQL的更多信息取消线程问题。 https://stackoverflow.com/a/46733027/185565 – Whome 2017-10-13 15:16:08
https://stackoverflow.com/a/47019335/3408531 – TiMr 2017-10-30 16:04:06