微信幸运九宫格抽奖源码/51wsb_wxjgg/app_code/Wx_MoniLoGin.cs

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using System;
using System.Collections.Generic;
using System.Web;
using System.Security.Cryptography;
using System.Text;
using System.Net;
using System.IO;
using System.Collections;
using System.Text.RegularExpressions;

/// <summary>
///LoGin 的摘要说明
/// </summary>
public class Wx_MoniLoGin
{
    public Wx_MoniLoGin()
    {
    }
    static string GetMd5Str32(string str)
    {
        MD5CryptoServiceProvider md5Hasher = new MD5CryptoServiceProvider();
        // Convert the input string to a byte array and compute the hash. 
        char[] temp = str.ToCharArray();
        byte[] buf = new byte[temp.Length];
        for (int i = 0; i < temp.Length; i++)
        {
            buf[i] = (byte)temp[i];
        }
        byte[] data = md5Hasher.ComputeHash(buf);
        // Create a new Stringbuilder to collect the bytes 
        // and create a string. 
        StringBuilder sBuilder = new StringBuilder();
        // Loop through each byte of the hashed data 
        // and format each one as a hexadecimal string. 
        for (int i = 0; i < data.Length; i++)
        {
            sBuilder.Append(data[i].ToString("x2"));
        }
        // Return the hexadecimal string. 
        return sBuilder.ToString();

    }
    //执行登陆操作
    public static bool ExecLogin(string name, string pass)
    {
        bool result = false;
        string password = GetMd5Str32(pass).ToUpper();
        string padata = "username=" + name + "&pwd=" + password + "&imgcode=&f=json";
        string url = "http://mp.weixin.qq.com/cgi-bin/login?lang=zh_CN ";//请求登录的URL
        try
        {
            CookieContainer cc = new CookieContainer();//接收缓存
            byte[] byteArray = Encoding.UTF8.GetBytes(padata); // 转化
            HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url);  //新建一个WebRequest对象用来请求或者响应url
            webRequest2.CookieContainer = cc;                                      //保存cookie 
            webRequest2.Method = "POST";                                          //请求方式是POST
            webRequest2.ContentType = "application/x-www-form-urlencoded";       //请求的内容格式为application/x-www-form-urlencoded
            webRequest2.ContentLength = byteArray.Length;
            webRequest2.Referer = "https://mp.weixin.qq.com/";
            Stream newStream = webRequest2.GetRequestStream();           //返回用于将数据写入 Internet 资源的 Stream。