Docker与外部mysql服务失败

嗨，我在运行docker图像时出现此错误。

docker运行 – 名称play2w -p 3889：9000 -p 3307：3306 play-scala-form：1.0-SNAPSHOT

[warn] application - application.conf @ file:/opt/docker/conf/application.conf: 12: user is deprecated, use username instead [info] application - Creating Pool for datasource 'default' [error] czhpHikariPool - HikariPool-1 - Exception during pool initialization. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:341) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2203) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2236) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2035) Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2203) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2236) Oops, cannot start the server. Configuration error: Configuration error[Cannot connect to database [default]]