mysql出现Connection.close() has already been called. Invalid operation in this state.
今天上服务器发现tomcat 里面报以下错误 可是网站并无挂 后来找了原来java 16-Nov-2016 11:43:08.437 警告 [http-nio-8989-exec-5] com.mchange.v2.c3p0.impl.NewPooledConnection.handleThrowable [c3p0] A PooledConnection that has already sig
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