mysql-connector-java.jar升級到8版本以后,驅動和連接地址的書寫發生了一些改動,不然項目啟動會進行報錯
1、驅動類發生改變
由 com.mysql.jdbc.Driver 改為 com.mysql.cj.jdbc.Driver
以前的com.mysql.jdbc.Driver也還能用,不過會提交你使用新的驅動類,提示如下:
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.
2、數據庫連接地址發生改動
spring.datasource.url=jdbc:mysql://localhost:3306/glxy
數據庫連接地址上必須要指定時區(serverTimezone=GMT%2B8),不然會報如下錯誤:
java.sql.SQLException: The server time zone value '�й���ʱ��' 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.
另外,在數據庫連接地址上要需要額外指定字符編碼(characterEncoding=utf8),如果不指定 like查詢可能不會生效,明明有數據卻無法查出
完整地址寫法如下:
spring.datasource.url=jdbc:mysql://localhost:3306/glxy?serverTimezone=GMT%2B8&characterEncoding=utf8&useSSL=false&useUnicode=true