mysql的cj是什么包 Mysql版本java问题(com.mysql.cj.jdbc.Driver和com.mysql.jdbc.Driver)

老版本com.mysql.jdbc.Driver已弃用

String url1 = "jabc:mysql://127.0.0.1:3306/test";

String url1 = "jabc:mysql://localhost:3306/test";

新版用com.mysql.cj.jdbc.Driver

UTC:全球时间

Asia/Shanghai：上海时间

GMT%2B8:北京时间

String url = "jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8&serverTimezone=UTC&useSSL=false";

String url = "jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&useSSL=false";

String url = "jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8&serverTimezone=GMT%2B8&useSSL=false";

其中test:为数据库名

//Class.forName("com.mysql.jdbc.Driver");

//String url = "jabc:mysql://127.0.0.1:3306/test";

Class.forName("com.mysql.cj.jdbc.Driver");

String url = "jdbc:mysql://localhost:3306/test?characterEncoding=UTF-

8&serverTimezone=UTC&useSSL=false";

Connection conn = DriverManager.getConnection(url, "root", "root");