connection disabled
java.sql.SQLException: connection disabled
at com.alibaba.druid.pool.DruidPooledConnection.checkStateInternal(DruidPooledConnection.java:1169) ~[druid-1.1.24.jar:1.1.24]
at com.alibaba.druid.pool.DruidPooledConnection.checkState(DruidPooledConnection.java:1154) ~[druid-1.1.24.jar:1.1.24]
at com.alibaba.druid.pool.DruidPooledConnection.getHoldability(DruidPooledConnection.java:1003) ~[druid-1.1.24.jar:1.1.24]

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 1,007 milliseconds ago. The last packet sent successfully to the server was 1,001 milliseconds ago.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_91]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_91]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_91]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_91]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:981) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3465) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3365) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3805) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2478) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2625) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2551) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1861) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2073) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2009) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5094) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1994) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeUpdate(DruidPooledPreparedStatement.java:255) ~[druid-1.1.24.jar:1.1.24]