java web中，常用的mysql连接数库，除了需要配置好驱动程序，还有一点很重要的就是要经常会使用到这些语句：
import java.sql.Connection;
import java.sql.DriverManager;
public class DatabaseConnection{
private static final String DBDRIVER = "org.gjt.mm.mysql.Driver";
private static final String DBURL = "jdbc:mysql://localhost:3306/mldn";
private static final String DBUSER = "root";
private static final String DBPASSWORD = "mysqladmin";
private Connection conn = null;
public DatabaseConnection() throws Exception{
try{
Class.forName(DBDRIVER);
this.conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD);
}catch(Exception e){
throw e;
}
{
public Connection getConnection(){
return this conn;
}
public void close() throws Exception{
if (this.conn!=null){
try{
this.conn.close();
}catch(Exception e){
throw e;
}
}
}
}