這期內(nèi)容當(dāng)中小編將會給大家?guī)碛嘘P(guān)如何使用.net構(gòu)建微信服務(wù)號發(fā)送紅包,文章內(nèi)容豐富且以專業(yè)的角度為大家分析和敘述,閱讀完這篇文章希望大家可以有所收獲。

注:需要開通微信支付的服務(wù)號!
//跳轉(zhuǎn)微信登錄頁面
public ActionResult Index()
{
ViewBag.url = "https://open.weixin.qq.com/connect/oauth3/authorize?appid=" + {服務(wù)號appid} + "&redirect_uri=http%3A%2F%2F" + {微信重定向域名(填寫程序域名,例如:www.xxxx.com)} + "%2F"+{程序控制器名,例如:Home}+"%2F"+{程序Action名,例如:RedirectWeChat}+"&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
return View();
}
//獲取accesstoken(訪問微信接口需要)
public static string accesstoken(string WeChatWxAppId, string WeChatWxAppSecret)
{
string strJson = HttpRequestUtil.RequestUrl(string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", WeChatWxAppId, WeChatWxAppSecret));
if (strJson.IndexOf("errcode") == -1)
{
return GetJsonValue(strJson, "access_token");
}
else
{
return "";
}
}
//解析json
public static string GetJsonValue(string jsonStr, string key)
{
string result = string.Empty;
if (!string.IsNullOrEmpty(jsonStr))
{
key = "\"" + key.Trim('"') + "\"";
int index = jsonStr.IndexOf(key) + key.Length + 1;
if (index > key.Length + 1)
{
//先截逗號,若是最后一個,截“}”號,取最小值
int end = jsonStr.IndexOf(',', index);
if (end == -1)
{
end = jsonStr.IndexOf('}', index);
}
result = jsonStr.Substring(index, end - index);
result = result.Trim(new char[] { '"', ' ', '\'' }); //過濾引號或空格
}
}
return result;
}
//請求url
public static string RequestUrl(string url, string method="post")
{
// 設(shè)置參數(shù)
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
CookieContainer cookieContainer = new CookieContainer();
request.CookieContainer = cookieContainer;
request.AllowAutoRedirect = true;
request.Method = method;
request.ContentType = "text/html";
request.Headers.Add("charset", "utf-8");
//發(fā)送請求并獲取相應(yīng)回應(yīng)數(shù)據(jù)
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才開始向目標(biāo)網(wǎng)頁發(fā)送Post請求
Stream responseStream = response.GetResponseStream();
StreamReader sr = new StreamReader(responseStream, Encoding.UTF8);
//返回結(jié)果網(wǎng)頁(html)代碼
string content = sr.ReadToEnd();
return content;
}
//接收微信返回code
//接收微信數(shù)據(jù)獲取用戶信息
public ActionResult RedirectWeChat(string code, string state)
{
if (string.IsNullOrEmpty(code))
{
return Content("您拒絕了授權(quán)!");
}
string access_token = accesstoken(微信AppId, 微信AppSecret);
string st = "/tupian/20230522/access_token
string data = RequestUrl(st);
//拿到用戶openid
string openid=GetJsonValue(data, "openid");
//獲取用戶其他信息
string url = "/tupian/20230522/info
data = RequestUrl(url);
string subscribe=GetJsonValue(data, "subscribe");
if (subscribe == "0")
{
///未關(guān)注
return RedirectToAction("");
}
return RedirectToAction("");
}
//發(fā)送紅包Action
public ActionResult HB()
{
string openid = "";//用戶openid
string url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";
string orderNo = 商戶號 + DateTime.Now.ToString("yyyymmdd")+"隨機(jī)10位數(shù)字";//商戶訂單號 組成:mch_id+yyyymmdd+10位一天內(nèi)不能重復(fù)的數(shù)字。
string Code = ""//32為隨機(jī)字符串; string key="key=" + "";//支付密鑰(在商戶平臺設(shè)置32為字符串)
Dictionary<string, string> data = new Dictionary<string, string>(); data.Add("act_name", "");//活動名稱
data.Add("client_ip", "192.168.1.1");//Ip地址
data.Add("mch_billno", orderNo);//商戶訂單號 組成:mch_id+yyyymmdd+10位一天內(nèi)不能重復(fù)的數(shù)字。
data.Add("mch_id", "");//商戶號
data.Add("nonce_str", Code);//隨機(jī)字符串
data.Add("re_openid", openid);//用戶openid
data.Add("remark", "");//備注
data.Add("send_name","");//商戶名稱
data.Add("total_amount", "100");//付款金額 單位分
data.Add("total_num", "1");//紅包發(fā)放總?cè)藬?shù)
data.Add("wishing", "恭喜發(fā)財");//紅包祝福語
data.Add("wxappid", );//公眾賬號appid
string xml = GetXML(data, key);//簽名+拼接xml
string str=PostWebRequests(url, xml);//微信返回xml err_code=SUCCESS 就是成功
return View("");
}
//發(fā)送紅包(MD5簽名+拼接XML)
public static string GetXML(Dictionary<string, string> data,string paykey)
{
string retStr;
MD5CryptoServiceProvider m5 = new MD5CryptoServiceProvider();
var data1=from d in data orderby d.Key select d;
string data2 = "";
string XML = "<xml>";
foreach (var item in data1)
{
//空值不參與簽名
if (item.Value + "" != "")
{
data2 += item.Key +"="+ item.Value + "&";
}
XML += "<" + item.Key + ">" + item.Value+""+ "</" + item.Key + ">";
}
data2 += paykey;
//創(chuàng)建md5對象
byte[] inputBye;
byte[] outputBye;
//使用GB2312編碼方式把字符串轉(zhuǎn)化為字節(jié)數(shù)組.
try
{
inputBye = Encoding.UTF8.GetBytes(data2);
}
catch
{
inputBye = Encoding.GetEncoding("GB2312").GetBytes(data2);
}
outputBye = m5.ComputeHash(inputBye);
retStr = System.BitConverter.ToString(outputBye);
retStr = retStr.Replace("-", "").ToUpper();
XML += "<sign>" + retStr + "</sign>";//簽名
XML += "</xml>";
return XML;
}
//發(fā)送紅包請求Post方法
public static string PostWebRequests(string postUrl, string menuInfo)
{
string returnValue = string.Empty;
try
{
Encoding encoding = Encoding.UTF8;
byte[] bytes = encoding.GetBytes(menuInfo);
string cert = @"E:\cdcert\apiclient_cert.p12";//支付證書路徑
string password = "1212121";//支付證書密碼
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
X509Certificate cer = new X509Certificate(cert, password, X509KeyStorageFlags.MachineKeySet);
HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(postUrl);
webrequest.ClientCertificates.Add(cer);
webrequest.Method = "post";
webrequest.ContentLength = bytes.Length;
webrequest.GetRequestStream().Write(bytes, 0, bytes.Length);
HttpWebResponse webreponse = (HttpWebResponse)webrequest.GetResponse();
Stream stream = webreponse.GetResponseStream();
string resp = string.Empty;
using (StreamReader reader = new StreamReader(stream))
{
return reader.ReadToEnd();
}
}
catch (Exception ex)
{
return "";
}
}上述就是小編為大家分享的如何使用.net構(gòu)建微信服務(wù)號發(fā)送紅包了,如果剛好有類似的疑惑,不妨參照上述分析進(jìn)行理解。如果想知道更多相關(guān)知識,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道。
分享名稱:如何使用.net構(gòu)建微信服務(wù)號發(fā)送紅包-創(chuàng)新互聯(lián)
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