系统繁忙之 java.sql.SQLException: Connection.clearWarnings cannot be called on a closed connection
最近项目开发完了,测试阶段频繁出现无脑的"系统异常",页面显示的异常是:CouldnotopenJDBCConnectionfortransaction;nestedexceptionisjava.sql.SQLNonTransientConnectionException:(conn=911434)Connectionreset"msg:"系统繁忙,请稍后再试"timestamp:"2020-0