我想在jsp中创建一个包含从我的数据库中获取的值的组合框. 这是我编写的代码,但它返回一个空白的组合框,即使数据库中有值. select% Connection con=null;ResultSet rs=null;try{ Class.forName("sun.jd
          这是我编写的代码,但它返回一个空白的组合框,即使数据库中有值.
<select>
<% 
Connection con=null;
ResultSet rs=null;
try
{
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     con=DriverManager.getConnection("jdbc:odbc:db","root","root");
     HttpSession ss=request.getSession();
     String uid=(String)ss.getAttribute("id");
     PreparedStatement pst=con.prepareStatement("select name from emp where uid=?");
     pst.setString(1,uid);
     rs=pst.executeQuery();
     while(rs.next())
     {
         out.print(rs.getString("name"));
%>
</select>
<%
     }
}catch(Exception e)
{    out.print(e);
}
%>
 怎么样: 
  
  
 <select>
<% 
Connection con=null;
ResultSet rs=null;
try
{
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     con=DriverManager.getConnection("jdbc:odbc:db","root","root");
     HttpSession ss=request.getSession();
     String uid=(String)ss.getAttribute("id");
     PreparedStatement pst=con.prepareStatement("select name from emp where uid=?");
     pst.setString(1,uid);
     rs=pst.executeQuery();
     while(rs.next())
     {
          String name = rs.getString("name");
%>
          <option value="<%=name%>"><%=name%></option>
<%
     }
}catch(Exception e)
{    out.print(e);
}
%>
</select>
        
             