Connection to @localhost failed. [08001] Could not create connection to database server. Attempted reconnect 3 times. Giving up.
在连接字符串后面加上?serverTimezone=UTC 其中UTC是统一标准世界时间。
添加这个时区后
Cannot connect to a database （不能连接到数据库）
Step 1. Check your network settings
Step 2. Check your connection properties
Step 3. Check the driver version
Step 4. Check if the connection with SSH or SSL is required
