docker 部署是发现链接mysql出现

Caused by: java.net.UnknownHostException:

Caused by: com.mysql.cj.exceptions.CJCommunicationsException: 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.
 

解决

systemctl stop docker
#docker0
ip link set dev docker0 down
#删除docker0网桥
brctl delbr docker0
#增加docker0 网桥
brctl addbr docker0
#增加网卡
ip addr add 172.16.10.1/24 dev docker0
#启用网卡
ip link set dev docker0 up
#重启docker服务
systemctl restart docker

再次启动链接数据库OK