连接前配置jar包
百度搜索java mysql jar包
连接代码
import java.sql.Connection;
import java.sql.DriverManager;
public class DbUtil {
//private String dbUrl="jdbc:mysql://localhost:3306/books?useUnicode=true&characterEncoding=UTF8";//jdbc连接
private String jdbcName= "com.mysql.cj.jdbc.Driver";//jdbc驱动程序
private String dbUrl="jdbc:mysql://localhost:3306/books?serverTimezone=UTC&useSSL=false&characterEncoding=utf8";
private String dbUserName="root";//用户名
private String dbPassword="123456";//密码
/*获得连接对象 */
public Connection getCon() throws Exception{
Class.forName(jdbcName);//加载驱动
Connection con=DriverManager.getConnection(dbUrl,dbUserName,dbPassword);
return con;
}
/*断开连接 */
public void closeCon(Connection con) throws Exception {
if (con!=null){
con.close();
}
}
/*主函数,连接数据库*/
public static void main(String[] args) {
DbUtil dbUtil=new DbUtil();
try {
dbUtil.getCon();
System.out.println("连接成功");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("连接失败");
}
}
}