com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
問題:
com.mysql.cj.jdbc.exceptions.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.
資料庫連線失敗
解決:
mysql版本:5.x
spring.datasource.url=jdbc:mysql://localhost:3306/resource_sharingdb?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true
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