1.你需确定维权URL通知地址；
在“商户功能→商户信息→修改→维权通知URL”查看维权通知URL。（区分大小写）
2.添加用户维权入口
在服务号自定义菜单添加名称叫“维权”的菜单，该菜单不分层级，不分位置，微信自动跳转到维权页面。。
3.获取维权通知XML数据。
在ResponseHandler类（微信支付----没我想的那么难:http://www.2cto.com/weixin/201408/323334.html ）添加获取XML参数的方法：
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/**获取XML参数**/
public string getMpParameter(string parameter) {
string s = (string)xmlMap[parameter];
return (null == s) ? "" : s;
}
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在URL通知页面获取数据：
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if (!IsPostBack) {
ResponseHandler resHandler = new ResponseHandler(Context);
resHandler.init();
resHandler.setKey(TenpayUtil.key, TenpayUtil.appkey);
if (resHandler.isWXsignfeedback()) {
string AppId = resHandler.getMpParameter("AppId");
string TimeStamp = resHandler.getMpParameter("TimeStamp");
string OpenId = resHandler.getMpParameter("OpenId");
string AppSignature = resHandler.getMpParameter("AppSignature");
string MsgType = resHandler.getMpParameter("MsgType");
string FeedBackId = resHandler.getMpParameter("FeedBackId");
string TransId = resHandler.getMpParameter("TransId");
string Reason = resHandler.getMpParameter("Reason");
string Solution = resHandler.getMpParameter("Solution");
string ExtInfo = resHandler.getMpParameter("ExtInfo");
string SignMethod = resHandler.getParameter("SignMethod");
string txt = string.Empty;
if (MsgType.ToLower().Trim() == "request") {
}
else {
}
Response.Write("OK");
Response.Write("OK:" + resHandler.getDebugInfo());
}
else {
Response.Write("fail");
Response.Write("fail:" + resHandler.getDebugInfo());
}
Response.End();
}
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4.申请消除投诉
如您已经跟客户达成一致，可申请消除用户投诉！
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private void MessageToTx(string accessToken, string openId, string feedBackId) {
url = string.Format(url, accessToken, openId, feedBackId);
HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url);
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";
HttpWebResponse httpWebResponse2 = (HttpWebResponse)webRequest2.GetResponse();
StreamReader swRead = new StreamReader(httpWebResponse2.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8"));
Write(swRead.ReadToEnd());
}
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至此维权接口已经开发完成，可申请全网支付，注意开启全网支付，不受白名单限制！