.net微信服务号发送红包
程序员文章站
2023-11-25 12:41:28
本文实例为大家分享了.net微信红包发送代码,供大家参考,具体内容如下
注:需要开通微信支付的服务号!
//跳转微信登录页面
public actionres...
本文实例为大家分享了.net微信红包发送代码,供大家参考,具体内容如下
注:需要开通微信支付的服务号!
//跳转微信登录页面 public actionresult index() { viewbag.url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" + {服务号appid} + "&redirect_uri=http%3a%2f%2f" + {微信重定向域名(填写程序域名,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(); } //获取accesstoken(访问微信接口需要) 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) { //先截逗号,若是最后一个,截“}”号,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[] { '"', ' ', '\'' }); //过滤引号或空格 } } return result; } //请求url public static string requesturl(string url, string method="post") { // 设置参数 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"); //发送请求并获取相应回应数据 httpwebresponse response = request.getresponse() as httpwebresponse; //直到request.getresponse()程序才开始向目标网页发送post请求 stream responsestream = response.getresponsestream(); streamreader sr = new streamreader(responsestream, encoding.utf8); //返回结果网页(html)代码 string content = sr.readtoend(); return content; } //接收微信返回code //接收微信数据获取用户信息 public actionresult redirectwechat(string code, string state) { if (string.isnullorempty(code)) { return content("您拒绝了授权!"); } string access_token = accesstoken(微信appid, 微信appsecret); string st = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" + 微信appid + "&secret=" + 微信appsecret + "&code=" + code + "&grant_type=authorization_code"; string data = requesturl(st); //拿到用户openid string openid=getjsonvalue(data, "openid"); //获取用户其他信息 string url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=" + access_token + "&openid=" + openid + "&lang=zh_cn"; data = requesturl(url); string subscribe=getjsonvalue(data, "subscribe"); if (subscribe == "0") { ///未关注 return redirecttoaction(""); } return redirecttoaction(""); } //发送红包action public actionresult hb() { string openid = "";//用户openid string url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack"; string orderno = 商户号 + datetime.now.tostring("yyyymmdd")+"随机10位数字";//商户订单号 组成:mch_id+yyyymmdd+10位一天内不能重复的数字。 string code = ""//32为随机字符串; string key="key=" + "";//支付密钥(在商户平台设置32为字符串) dictionary<string, string> data = new dictionary<string, string>(); data.add("act_name", "");//活动名称 data.add("client_ip", "192.168.1.1");//ip地址 data.add("mch_billno", orderno);//商户订单号 组成:mch_id+yyyymmdd+10位一天内不能重复的数字。 data.add("mch_id", "");//商户号 data.add("nonce_str", code);//随机字符串 data.add("re_openid", openid);//用户openid data.add("remark", "");//备注 data.add("send_name","");//商户名称 data.add("total_amount", "100");//付款金额 单位分 data.add("total_num", "1");//红包发放总人数 data.add("wishing", "恭喜发财");//红包祝福语 data.add("wxappid", );//公众账号appid string xml = getxml(data, key);//签名+拼接xml string str=postwebrequests(url, xml);//微信返回xml err_code=success 就是成功 return view(""); } //发送红包(md5签名+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) { //空值不参与签名 if (item.value + "" != "") { data2 += item.key +"="+ item.value + "&"; } xml += "<" + item.key + ">" + item.value+""+ "</" + item.key + ">"; } data2 += paykey; //创建md5对象 byte[] inputbye; byte[] outputbye; //使用gb2312编码方式把字符串转化为字节数组. 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>";//签名 xml += "</xml>"; return xml; } //发送红包请求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";//支付证书路径 string password = "1212121";//支付证书密码 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 ""; } }
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