C#实现微信公众号群发消息(解决一天只能发一次的限制)实例分享
C#实现微信公众号群发消息(解决一天只能发一次的限制)实例分享
发布时间:2016-12-28 来源:查字典编辑
摘要:总体思路:1.首先必须要在微信公众平台上申请一个公众号。2.然后进行模拟登陆。(由于我对http传输原理和编程不是特别懂,在模拟登陆的地方,...

总体思路:

1.首先必须要在微信公众平台上申请一个公众号。

2.然后进行模拟登陆。(由于我对http传输原理和编程不是特别懂,在模拟登陆的地方,不是特别清楚,希望有大神指教)

3.模拟登陆后会获得一个token(令牌)和cookie。

4.因为模拟登陆后相当于就进入了微信公众平台,在这个里面就可以抓取到需要的数据,如公众好友的昵称,fakeId。其中的fakeid非常重要,因为传输数据必须要知道对方的fakeid。

5.知道对方的fakeid就可以进行数据的发送了。

这里是整个项目的源码下载:http://http://xiazai.jb51.net/201309/yuanma/webchat.rar

不过里面还有一些小问题,希望有人继续修改和讨论!也有人说这样会被封号,所以请谨慎操作

讲一下我项目里面的主要内容

1.WeiXinLogin.cs类是用来执行登陆功能的

复制代码 代码如下:

//对密码进行MD5加密

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;

Stream newStream = webRequest2.GetRequestStream(); //返回用于将数据写入 Internet 资源的 Stream。

// Send the data.

newStream.Write(byteArray, 0, byteArray.Length); //写入参数

newStream.Close();

HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();

StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);

string text2 = sr2.ReadToEnd();

//此处用到了newtonsoft来序列化

WeiXinRetInfo retinfo = Newtonsoft.Json.JsonConvert.DeserializeObject<WeiXinRetInfo>(text2);

string token = string.Empty;

if (retinfo.ErrMsg.Length > 0)

{

token = retinfo.ErrMsg.Split(new char[] { '&' })[2].Split(new char[] { '=' })[1].ToString();//取得令牌

LoginInfo.LoginCookie = cc;

LoginInfo.CreateDate = DateTime.Now;

LoginInfo.Token = token;

result = true;

}

}

catch (Exception ex)

{

throw new Exception(ex.StackTrace);

}

return result;

}

public static class LoginInfo

{

/// <summary>

/// 登录后得到的令牌

/// </summary>

public static string Token { get; set; }

/// <summary>

/// 登录后得到的cookie

/// </summary>

public static CookieContainer LoginCookie { get; set; }

/// <summary>

/// 创建时间

/// </summary>

public static DateTime CreateDate { get; set; }

}

2.在WeiXin.cs类中实现发送数据

复制代码 代码如下:

public static bool SendMessage(string Message, string fakeid)

{

bool result = false;

CookieContainer cookie = null;

string token = null;

cookie = WeiXinLogin.LoginInfo.LoginCookie;//取得cookie

token = WeiXinLogin.LoginInfo.Token;//取得token

string strMsg = System.Web.HttpUtility.UrlEncode(Message); //对传递过来的信息进行url编码

string padate = "type=1&content=" + strMsg + "&error=false&tofakeid=" + fakeid + "&token=" + token + "&ajax=1";

string url = "https://mp.weixin.qq.com/cgi-bin/singlesend?t=ajax-response&lang=zh_CN";

byte[] byteArray = Encoding.UTF8.GetBytes(padate); // 转化

HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url);

webRequest2.CookieContainer = cookie; //登录时得到的缓存

webRequest2.Referer = "https://mp.weixin.qq.com/cgi-bin/singlemsgpage?token=" + token + "&fromfakeid=" + fakeid + "&msgid=&source=&count=20&t=wxm-singlechat&lang=zh_CN";

webRequest2.Method = "POST";

webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";

webRequest2.ContentType = "application/x-www-form-urlencoded";

webRequest2.ContentLength = byteArray.Length;

Stream newStream = webRequest2.GetRequestStream();

// Send the data.

newStream.Write(byteArray, 0, byteArray.Length); //写入参数

newStream.Close();

HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();

StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);

string text2 = sr2.ReadToEnd();

if (text2.Contains("ok"))

{

result = true;

}

return result;

}

3.SendMessage.aspx.cs中主要实现获取fakeid

复制代码 代码如下:

public static ArrayList SubscribeMP()

{

try

{

CookieContainer cookie = null;

string token = null;

cookie = WeiXinLogin.LoginInfo.LoginCookie;//取得cookie

token = WeiXinLogin.LoginInfo.Token;//取得token

/*获取用户信息的url,这里有几个参数给大家讲一下,1.token此参数为上面的token 2.pagesize此参数为每一页显示的记录条数

3.pageid为当前的页数,4.groupid为微信公众平台的用户分组的组id,当然这也是我的猜想不一定正确*/

string Url = "https://mp.weixin.qq.com/cgi-bin/contactmanagepage?t=wxm-friend&token=" + token + "&lang=zh_CN&pagesize=10&pageidx=0&type=0&groupid=0";

HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(Url);

webRequest2.CookieContainer = cookie;

webRequest2.ContentType = "text/html; charset=UTF-8";

webRequest2.Method = "GET";

webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";

webRequest2.ContentType = "application/x-www-form-urlencoded";

HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();

StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);

string text2 = sr2.ReadToEnd();

MatchCollection mc;

//由于此方法获取过来的信息是一个html网页所以此处使用了正则表达式,注意:(此正则表达式只是获取了fakeid的信息如果想获得一些其他的信息修改此处的正则表达式就可以了。)

Regex r = new Regex(""fakeId"s:s"d+""); //定义一个Regex对象实例

mc = r.Matches(text2);

Int32 friendSum = mc.Count; //好友总数

string fackID ="";

ArrayList fackID1 = new ArrayList();

for (int i = 0; i < friendSum; i++)

{

fackID = mc[i].Value.Split(new char[] { ':' })[1];

fackID = fackID.Replace(""", "").Trim();

fackID1.Add(fackID);

}

return fackID1;

}

catch (Exception ex)

{

throw new Exception(ex.StackTrace);

}

}

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