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url增加參數useSSL 和時區 : jdbc:mysql://localhost:3306/mydb?useSSL=false&serverTimezone=UTC

driver變化: com.mysql.jdbc.Driver => com.mysql.cj.jdbc.Driver

常見錯誤提示1：

如果driver沒有添加cj，則會在連接的時候出現以下錯誤提示：

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.

常見錯誤提示2：

url中如果沒有設置useSSL=false，則會在連接的時候出現以下錯誤提示：

WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements
SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate
property is set to 'false'.You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate
verification.

常見錯誤提示3：

url中如果沒有設置serverTimezone=UTC，則會在連接的時候出現以下錯誤提示：

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.

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