关于配置和端口的小事

com.alibaba.dubbo.rpc.RpcException:

（意思是端口被占用，在配置文件修改下端口就好了，一般企业应该有固定的端口，我这只是测试一下）

Fail to start server(url: dubbo://10.254.2.221:20881/com.tanhua.dubbo.server.api.HuanXinApi?anyhost=true&application=dubbo-provider-huanxin&bind.ip=10.254.2.221&bind.port=20881&channel.readonly.sent=true&codec=dubbo&dubbo=2.0.2&generic=false&heartbeat=60000&interface=com.tanhua.dubbo.server.api.HuanXinApi&methods=queryHuanXinUser,getToken,queryUserByUserName,register&pid=14132&revision=1.0.0&side=provider&timestamp=1624933583813&version=1.0.0) Failed to bind NettyServer on /10.254.2.221:20881, cause: Failed to bind to: /0.0.0.0:20881