/// <summary>
/// 微信支付成功,返回信息
/// </summary>
/// <returns></returns>
public void WxZhifuInfo()
{
string post = "";
HttpRequestBase request = Request;
using (System.IO.Stream stream = request.InputStream)
{
Byte[] postBytes = new Byte[stream.Length];
stream.Read(postBytes, 0, (Int32)stream.Length);
post = System.Text.Encoding.UTF8.GetString(postBytes);
}
writeLogs.writelog("支付成功,返回信息:" + post);
Response.Write("<xml><return_code><![CDATA[SUCCESS]]></return_code></xml>");
// "<return_msg><![CDATA[]]></return_msg></xml>");
Response.End();
}
/// <summary>
/// 提交微信支付
/// </summary>
/// <param name="orderid">订单编号</param>
/// <param name="title">商品标题</param>
/// <param name="openid">用户编号</param>
/// <param name="weiId">公众号</param>
/// <returns></returns>
public string WxZhifuApi(string orderid,string title,string openid,string weiId)
{
try {
SignCode sign = new SignCode();
//获取商户的配置参数
string sql = "select * from pay_info where Enable=1";//必须保证是一条数据否则默认失败
DataTable dt = SQLiteDBHelper.GetDataTable(sql, weiId);
if (dt.Rows.Count > 0)//查看是否存在数据
{
sign.appid = dt.Rows[0]["appid"].ToString();
sign.mch_id = dt.Rows[0]["Mchid"].ToString();
Setkey = dt.Rows[0]["KeyValue"].ToString();
}
else {
writeLogs.writelog("查询商户配置参数错误,请检查参数是否正确");
return "{\"errcode\":\"3\"}";//商户未设置支付参数
}
string Time = ((DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000).ToString();
sign.body = title;
sign.nonce_str = "abcdefghijklmnopqrstuvwxyzqqqqqq";//随机数固定不变
sign.openid = openid; //"oaR7LjvZ5qFcoD0q4_zAhhTruqwY";
sign.out_trade_no = orderid; //"D"+Time;
sign.spbill_create_ip = "127.0.0.1";
//使用订单编号查询订单总价格
sql = "select * from order_info where orderid="+orderid+" and openid=‘"+openid+"‘ ";
dt = SQLiteDBHelper.GetDataTable(sql, weiId);
if (dt.Rows.Count > 0)
{
sign.total_fee = Convert.ToString( float.Parse(dt.Rows[0]["Receivables"].ToString()) * 100); //测试阶段价格写1 ,单位:分
}
else {
writeLogs.writelog("查询订单编号价格错误");
return "{\"errcode\":\"4\"}";//订单编号错误或订单不存在
}
sign.notify_url = string.Format("http://shop.bcowei.com/Template/WxZhifuInfo");// string.Format("shop.bcowei.com/Template/orderpay?weiId={0}&openid={1}&pay={2}&orderId={3}",weiId,openid,"1",orderid);//接受微信支付成功信息
string code = WxSign(sign);
string url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
prepay p = new prepay();
string result = System.Web.PostAndGet.PostWebRequest(url, code, "utf-8");
XmlSerializer xml = new XmlSerializer(typeof(prepay));
StringReader reader = new StringReader(result);
prepay prepay = xml.Deserialize(reader) as prepay;
if (prepay.result_code == null || prepay.result_code == "")
{
writeLogs.writelog("prepay_id获取失败,检查参数配置是否正确,参数内容:"+code);
//Response.Redirect(string.Format("/ordererror/Template?weiId={0}&openid={1}&errcode=11",weiId,openid));
return "{\"errcode\":\"1\"}";
}
string prepayid = string.Format("prepay_id={0}", prepay.prepay_id);
Dictionary<string, string> dic = new Dictionary<string, string>();
dic.Add("appId", sign.appid);
dic.Add("timeStamp",Time);
dic.Add("nonceStr",sign.nonce_str);
dic.Add("package", prepayid);
dic.Add("signType", "MD5");
//Template/index1?appid={0}&timeStamp={1}&nonceStr={2}&package={3}&signType={4}&paySign={5}",sign.appid,Time,sign.nonce_str,prepayid,"MD5",WxSignCreate(dic)));
ViewBag.appid = sign.appid;
ViewBag.time = Time;
ViewBag.noncestr = sign.nonce_str;
ViewBag.package = prepayid;
ViewBag.signType = "MD5";
ViewBag.paySign = WxSignCreate(dic);
ViewBag.weiId = weiId;
ViewBag.openid = openid;
ViewBag.orderid = orderid;
return "{\"errcode\":\"0\","+
"\"appid\":\"" + sign.appid + "\","+
"\"time\":\"" + Time + "\","+
"\"noncestr\":\"" + sign.nonce_str + "\","+
"\"package\":\""+prepayid+"\","+
"\"signType\":\"MD5\","+
"\"paySign\":\""+WxSignCreate(dic)+"\""+
"}";
}
catch (Exception e)
{
// Response.Redirect(string.Format("/ordererror/Template?weiId={0}&openid={1}&errcode=15", weiId, openid));
return "{\"errcode\":\"1\"}";
}
}
/// <summary>
/// key值
/// </summary>
/// <returns></returns>
public static string Setkey { get; set; }
/// <summary>
/// 生成签名
/// </summary>
/// <param name="body">商品描述</param>
/// <param name="openid">用户标识</param>
/// <param name="out_trade_no">订单编号</param>
/// <param name="total_fee">价钱</param>
/// <param name="notify_url">成功跳转路径</param>
/// <param name="spbill_create_ip">设备IP</param>
/// <returns></returns>
public string WxSign(SignCode code)
{
//string appid,string mch_id,string nonce_str,string body, string openid, string out_trade_no, string total_fee, string notify_url, string spbill_create_ip
Dictionary<string, string> sign = new Dictionary<string, string>();//字典建值对
try {
sign.Add("appid",code.appid);//公众号标识,1
sign.Add("body", code.body);//商品描述,0
sign.Add("mch_id", code.mch_id);//商户编号,1
sign.Add("nonce_str",code.nonce_str);//随机字符串,1
sign.Add("openid", code.openid);//微信用户编号,0
sign.Add("out_trade_no", code.out_trade_no);//订单编号,0
sign.Add("spbill_create_ip", code.spbill_create_ip);//设备IP,0
sign.Add("total_fee", code.total_fee);//价钱 单位:分,0
sign.Add("notify_url", code.notify_url);//请求成功跳转地址,0
sign.Add("trade_type", "JSAPI");//支付方式,1
sign.Add("sign", WxSignCreate(sign));//签名
}
catch (Exception e)
{
writeLogs.writelog("参数键值对异常:"+e.Message);
return "参数键值对异常:" + e.Message;
}
string ddd = WxXml(sign);
return WxXml(sign);//参数转化xml
}
public class getPay {
public string appId { get; set; }
public string timeStamp { get; set; }
public string nonceStr { get; set; }
public string package { get; set; }
public string signType { get; set; }
public string paySign { get; set; }
}
/// <summary>
/// 签名参数
/// </summary>
public class SignCode {
public string appid { get; set; }
public string mch_id { get; set; }
public string nonce_str { get; set; }
public string body { get; set; }
public string openid { get; set; }
public string out_trade_no { get; set; }
public string total_fee { get; set; }
public string notify_url { get; set; }
public string spbill_create_ip { get; set; }
}
/// <summary>
/// 转换xml格式
/// </summary>
/// <param name="dic"></param>
/// <returns></returns>
public string WxXml(Dictionary<string,string> dic)
{
StringBuilder sb = new StringBuilder();
try {
sb.Append("<xml>");
foreach (var key in dic.Keys)
{
//<appid>wx2421b1c4370ec43b</appid
sb.Append("<"+key+">"+dic[key]+"</"+key+">");
}
sb.Append("</xml>");
}
catch (Exception e)
{
writeLogs.writelog("参数转换xml异常:"+e.Message);
return null;
}
return sb.ToString();
}
/// <summary>
/// 拼接签名生成
/// </summary>
/// <param name="Sign"></param>
/// <returns></returns>
public string WxSignCreate(Dictionary<string,string> Sign)
{
string create = "";//拼接字符串
try {
var result = from i in Sign orderby i.Key select i;
foreach(KeyValuePair<string,string> pair in result)
{
string key = pair.Key;
string value = pair.Value;
create += key + "=" + value + "&";
}
create = create.TrimEnd(‘&‘);
}
catch (Exception e)
{
writeLogs.writelog("签名拼接异常:"+e.Message);
return "签名拼接异常:" + e.Message;
}
return WxSignMD5(create);
}
/// <summary>
/// 请求签名MD5
/// </summary>
/// <param name="sign"></param>
/// <returns></returns>
public string WxSignMD5(string sign)
{
string Signstr = sign + "&key=" + Setkey;
return MD5(Signstr).ToUpper();//MD5转换
}
/// <summary>
/// 签名MD5
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static String MD5(String s)
{
char[] hexDigits = { ‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘, ‘8‘, ‘9‘,
‘A‘, ‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘ };
try
{
byte[] btInput = System.Text.Encoding.UTF8.GetBytes(s);
// 获得MD5摘要算法的 MessageDigest 对象
System.Security.Cryptography.MD5 mdInst = System.Security.Cryptography.MD5.Create();
// 使用指定的字节更新摘要
mdInst.ComputeHash(btInput);
// 获得密文
byte[] md = mdInst.Hash;
// 把密文转换成十六进制的字符串形式
int j = md.Length;
char[] str = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++)
{
byte byte0 = md[i];
str[k++] = hexDigits[(int)(((byte)byte0) >> 4) & 0xf];
str[k++] = hexDigits[byte0 & 0xf];
}
return new string(str);//编码转换
}
catch (Exception e)
{
writeLogs.writelog("调用签名md5异常:"+e.Message);
return null;
}
}
原文：http://www.cnblogs.com/xuemykisskui/p/4150950.html