nacos 注册2个dubbo的时候，出现端口被占用的情况

[2738671]

[DUBBO] qos-server can not bind localhost:22222, dubbo version: 2.7.1, current host: 169.254.35.87
java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:132)
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:563)
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1332)
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:503)
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:488)
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:984)
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:259)
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:366)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:405)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)

但是通过配置文件修改配置：
dubbo.application.qos-enable=true
dubbo.application.qos-port=33333
dubbo.application.qos-accept-foreign-ip=false
后，依然报这个错误。看启动，是读取到了。
api端读取admin端注册的服务
2019-11-25 23:53:02,608 - Dubbo Config was overridden by externalized configuration {dubbo.application.name=api, dubbo.application.qos-accept-foreign-ip=false, dubbo.application.qos-enable=true, dubbo.application.qos-port=33333, dubbo.cloud.subscribed-services=admin, dubbo.config.multiple=true, dubbo.protocol.name=dubbo, dubbo.protocol.port=-1, dubbo.registry.address=spring-cloud://49.1.2.3:8848}