成绩查询

cx.aspx

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
    CodeBehind="Default.aspx.cs" Inherits="Chaxun._Default" %>

<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">

</asp:Content>


<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
    
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
    <p>
        <asp:Label ID="Label1" runat="server" Text="学号"></asp:Label>
        <asp:TextBox ID="id" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ID="RegularExpressionValidator1" ForeColor="Red" ValidationExpression="20(0|1)\d{7}"
         runat="server" ErrorMessage="学号格式不正确" ControlToValidate="id"></asp:RegularExpressionValidator>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator1"
            runat="server" ErrorMessage="学号不能为空" ForeColor="Pink" ControlToValidate="id"></asp:RequiredFieldValidator>
    </p>
    <p>
        <asp:Label ID="Label2" runat="server" Text="密码"></asp:Label>
        <asp:TextBox ID="pwd" runat="server" ToolTip="用户密码不会被保存" TextMode="Password" ></asp:TextBox>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator2" ForeColor="Red" runat="server" ErrorMessage="密码不能为空"
         ControlToValidate="pwd"></asp:RequiredFieldValidator>
    </p>
    <p>
     <asp:Button ID="Button1" runat="server" Text="查询" onclick="Button1_Click" />
    </p>
    <asp:Label ID="result" runat="server" Text="result:"></asp:Label>
    
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>

cx.aspx.cs

/*
  版权所有：magicshui
  时间： 2011-6-6 
  作者： magicshui
  请遵守大陆cc创作共享协议，署名-非商业-禁止演绎
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Text;
using System.IO;

namespace Chaxun
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string back=Login(id.Text, pwd.Text);
            string rank=getPage("http://202.206.1.163/bxqcjcxAction.do", null);
            result.Text = rank==""?"用户名或密码错误":rank;

            id.Text = "";
            pwd.Text = "";
        }
        private static string Login(string uid,string password)
        {
            string paramList = "zjh="+uid+"&mm="+password;
            string url="http://202.206.1.163/loginAction.do";
            HttpWebResponse res = null;
            string result = "";
            try
            {
                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
                req.Method = "POST";
                req.ContentType = "application/x-www-form-urlencoded";
                req.AllowAutoRedirect = false;
                CookieContainer cookieContainer = new CookieContainer();
                req.CookieContainer = cookieContainer;
                StringBuilder urlEn = new StringBuilder();
                char[] reserved = { '?', '=', '&' };
                byte[] bs = null;
                if (paramList != null)
                {
                    int i = 0, j;
                    while (i < paramList.Length)
                    {
                        j = paramList.IndexOfAny(reserved, i);
                        if (j == -1)
                        {
                            urlEn.Append(HttpUtility.UrlEncode(paramList.Substring(i, paramList.Length - i)));
                            break;
                        }
                        urlEn.Append(HttpUtility.UrlEncode(paramList.Substring(i, j - i)));
                        urlEn.Append(paramList.Substring(j, 1));
                        i = j + 1;
                    }
                    bs = Encoding.UTF8.GetBytes(urlEn.ToString());
                    req.ContentLength = bs.Length;
                    Stream newStream = req.GetRequestStream();
                    newStream.Write(bs, 0, bs.Length);
                    newStream.Close();
                }

                else
                {
                    req.ContentLength = 0;
                }
                res = (HttpWebResponse)req.GetResponse();
                cookieheader = req.CookieContainer.GetCookieHeader(new Uri(url));
                Stream recStream = res.GetResponseStream();
                Encoding encode = System.Text.Encoding.GetEncoding("GBK");
                StreamReader sr = new StreamReader(recStream, encode);
                Char[] read = new Char[256];
                int count = sr.Read(read, 0, 256);
                while (count > 0)
                {
                    String str = new String(read, 0, count);
                    result += str;
                    count = sr.Read(read, 0, 256);
                }

            }
            catch (Exception)
            {

                result = "";
            }
            finally
            {
                if (res != null)
                {
                    res.Close();
                }
            }
            return result;
        }

        public static string getPage(String url, String paramList)
        {
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            req.Referer = "http://102.106.1.163/menu/s_menu.jsp";
            CookieContainer cookieCon = new CookieContainer();
            req.CookieContainer = cookieCon;
            req.CookieContainer.SetCookies(new Uri(url), cookieheader);
            HttpWebResponse res = (HttpWebResponse)req.GetResponse();
            StreamReader sr = new StreamReader(res.GetResponseStream(), Encoding.Default);
            string strResult = sr.ReadToEnd();
            sr.Close();
            return strResult;
        }

        public static string cookieheader { get; set; }
    }
}