yangnaiyi

错误：com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Connection.close() has already been called. Invalid operation in this state.执行：mysql﹥ show global variables like 'wait_time...

mysql服务安装卸载，到MySQL的bin目录下执行：安装： mysqld --install 服务名字 --defaults-file="D:\infcn\IRASAuth\mysql-5.1.56-win32\my.ini"卸载： mysqld --remove 服务名...