连接数据库问题?
为什么我用
Connection con=null;
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
con=DriverManager.getConnection("jdbc:mysql://localhost/usdl");
String sql="select namefirst,namelast,email from students";
Statement stat=con.createStatement();
rs=stat.executeQuery(sql);
while(rs.next()){
String t1=rs.getString(1);
String t2=rs.getString(2);
String t3=rs.getString(3);
%>
<div align="center">
姓名:<%=t1%><%=t2%>;
E-mail:<%=t3%><br>
</div>
<%}%>
连接mysql数据库显示的都是乱码?