package login;import java.sql.connection;import java.sql.drivermanager;public class getconn { public connection conn=null; public connection getconnection(){ try{ class.forname(com.mysql.jdbc.driver); string url=jdbc:mysql://localhost:3306/select_courses +?useunicode=true&characterencoding=utf8; //确定字符集 string user=root; string password=; conn=drivermanager.getconnection(url,user,password); if(conn!=null){ system.out.println(数据库链接成功); } }catch(exception e){ e.printstacktrace(); } return conn; }}