Java.net.ConnectException: Connection refused: connectjava.net.DualStackPlainSocketImpl.connect0(DualStackPlainSocketImpl.java.-2)java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java.79)java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java.350)java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java.206)java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java.188)java.net.PlainSocketImpl.connect(PlainSocketImpl.java.172)java.net.SocksSocketImpl.connect(SocksSocketImpl.java.392)java.net.Socket.connect(Socket.java.589)com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java.211)com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java.299)com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java.2187)com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java.2220)com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java.2015)com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java.768)com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java.47)sun.reflect.GeneratedConstructorAccessor191.newInstance(null.-1)sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java.45)java.lang.reflect.Constructor.newInstance(Constructor.java.423)com.mysql.jdbc.Util.handleNewInstance(Util.java.403)com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java.385)com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java.323)com.fr.third.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java.1461)com.fr.third.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java.1525)com.fr.third.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java.2165)