求JSP高手帮我看看这段代码
补充：psm.executeUpdate();
System.out.println("修改成功");
stmt=conn.createStatement();
rs=stmt.executeQuery("select * from userinfo");
out.println("<html>"+
"<head><title>用户信息</title></head>"+"<body>");
out.println(" <h1>修改后信息如下</h1><br><br>");
while(rs.next()){
out.print("用户:");
out.print(rs.getString(1)+"\t");
out.print("密码:");
out.print(rs.getString(2)+"\t");
out.print("电话:");
out.print(rs.getString(3)+"\t");
out.print("邮箱:");
out.print(rs.getString(4)+"\t");
out.print("地址:");
out.print(rs.getString(5)+"\t");
out.println("<br>");
}
out.println("</body></html>");
out.close();
}catch(Exception e){}
out.flush();
out.close();
}
}
运行了以后弹出空白页面 有错误码
