這篇文章跟大家介紹一下om.mysql.jdbc.Driver和com.mysql.cj.jdbc.Driver的差別。有一定的參考價值,有需要的朋友可以參考一下,希望對大家有幫助。
com.mysql.jdbc.Driver
是mysql-connector-java 5中的,
com.mysql .cj.jdbc.Driver
是mysql-connector-java 6中的
#下載位址:https://dev.mysql.com/downloads/connector/j/5.1.html
倉庫位址:https://mvnrepository.com/artifact/mysql/mysql-connector-java
##mysql-connector- java 5<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.49</version> </dependency>1、JDBC連接Mysql5
com.mysql.jdbc.Driver:
driverClassName=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&useSSL=false username=root password=2、JDBC連接Mysql6
com.mysql.cj.jdbc .Driver, 需要指定時區serverTimezone:
driverClassName=com.mysql.cj.jdbc.Driver url=jdbc:mysql://localhost:3306/test?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=false username=root password=在設定時區的時候,如果設定serverTimezone=UTC,會比中國時間早8個小時,如果在中國,可以選擇Asia/Shanghai或Asia/Hongkong,例如:
driverClassName=com.mysql.cj.jdbc.Driver url=jdbc:mysql://localhost:3306/test?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf8&useSSL=false username=root password=備註:I、如果mysql-connector-java用的6.0以上的,如下:
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>6.0.6</version> </dependency>但是你的driver用的還是
com.mysql.jdbc.Driver,就會報錯:
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.此時需要把
com.mysql.jdbc.Driver 改為
com .mysql.cj.jdbc.Driver
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.不建議不使用伺服器驗證來建立SSL連線。 如果未明確設置,MySQL 5.5.45 , 5.6.26 and 5.7.6 版本預設要求建立SSL連線。 為了符合目前不使用SSL連線的應用程序,
verifyServerCertificate屬性設定為’false’。
useSSL=false來明確停用SSL連線。
useSSL=true。
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