首先這里產生了兩個錯誤，一個是jdbc加載驅動問題，另一個是time zone即mysql服務驅動和JDBC驅動時區不同步。
Loading class 'com.mysql.jdbc.Driver'. This is deprecated. The new driver class is 'com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.

java.sql.SQLException: The server time zone value '???ú±ê×??±??' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

問題解決

問題1直接按照錯誤中提示將com.mysql.jdbc.Driver改為com.mysql.cj.jdbc.Driver即可。

問題2時區不同步，在mysql數據庫的url中添加?serverTimezone=UTC使驅動時區同步。如下：其中/mysql是我自己創建的數據庫名字 String url = "jdbc:mysql://localhost:3306/mysql?serverTimezone=UTC";

總結

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