/**
*
* 通过code换取网页授权access_token和openid的返回数据，正确时返回的JSON数据包如下：
* {
* "access_token":"ACCESS_TOKEN",
* "expires_in":7200,
* "refresh_token":"REFRESH_TOKEN",
* "openid":"OPENID",
* "scope":"SCOPE",
* "unionid": "o6_bmasdasdsad6_2sgVt7hMZOPfL"
* }
* 其中access_token可用于获取共享收货地址
* openid是微信支付jsapi支付接口统一下单时必须的参数
* 更详细的说明请参考网页授权获取用户基本信息：http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html
* @失败时抛异常WxPayException
*/
public void GetOpenidAndAccessTokenFromCode(string code)
{
try
{
//构造获取openid及access_token的url
WxPayData data = new WxPayData();
data.SetValue("appid", WxPayConfig.APPID);
data.SetValue("secret", WxPayConfig.APPSECRET);
data.SetValue("code", code);
data.SetValue("grant_type", "authorization_code");
string url = "https://api.weixin.qq.com/sns/oauth2/access_token?" + data.ToUrl();
//请求url以获取数据
string result = WxHttpService.Get(url);
WxLog.Debug(this.GetType().ToString(), "GetOpenidAndAccessTokenFromCode response : " + result);
//保存access_token，用于收货地址获取
JsonData jd = JsonMapper.ToObject(result);
access_token = (string)jd["access_token"];
//获取用户openid
openid = (string)jd["openid"];
WxLog.Debug(this.GetType().ToString(), "Get openid : " + openid);
WxLog.Debug(this.GetType().ToString(), "Get access_token : " + access_token);
}
catch (Exception ex)
{
WxLog.Error(this.GetType().ToString(), ex.ToString());
throw new WxPayException(ex.ToString());
}
}
public override void ProcessNotify()
{
WxPayData notifyData = GetNotifyData();
//检查支付结果中transaction_id是否存在
if (!notifyData.IsSet("transaction_id"))
{
//若transaction_id不存在，则立即返回结果给微信支付后台
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "支付结果中微信订单号不存在");
WxLog.Error(this.GetType().ToString(), "The Pay result is error : " + res.ToXml());
}
string transaction_id = notifyData.GetValue("transaction_id").ToString();
//查询订单，判断订单真实性
if (!QueryOrder(transaction_id))
{
//若订单查询失败，则立即返回结果给微信支付后台
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "订单查询失败");
WxLog.Error(this.GetType().ToString(), "Order query failure : " + res.ToXml());
}
//查询订单成功
else
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "SUCCESS");
res.SetValue("return_msg", "OK");
WxLog.Info(this.GetType().ToString(), "order query success : " + res.ToXml());
}
}
/**
* 调用统一下单，获得下单结果
* @return 统一下单结果
* @失败时抛异常WxPayException
*/
public WxPayData GetUnifiedOrderResult(VWPayOrderEntity _order)
{
//统一下单
WxPayData data = new WxPayData();
data.SetValue("body", "易店心，订单号：" + _order.SysOrderCode);
data.SetValue("attach", "");
data.SetValue("out_trade_no", _order.PayOrderCode);/*WxPayApi.GenerateOutTradeNo()*/
data.SetValue("total_fee", (_order.NeedPayPrice * 100).ToString());
data.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss"));
data.SetValue("time_expire", DateTime.Now.AddMinutes(10).ToString("yyyyMMddHHmmss"));
data.SetValue("goods_tag", "");
data.SetValue("trade_type", "JSAPI");
data.SetValue("openid", openid);
WxPayData result = WxPayApi.UnifiedOrder(data);
if (!result.IsSet("appid") || !result.IsSet("prepay_id") || result.GetValue("prepay_id").ToString() == "")
{
WxLog.Error(this.GetType().ToString(), "UnifiedOrder response error!");
throw new WxPayException("UnifiedOrder response error!");
}
unifiedOrderResult = result;
return(result);
}
/**
*
* 检测签名是否正确
* 正确返回true，错误抛异常
*/
public bool CheckSign()
{
//如果没有设置签名，则跳过检测
if (!IsSet("sign"))
{
WxLog.Error(this.GetType().ToString(), "WxPayData签名存在但不合法!");
throw new WxPayException("WxPayData签名存在但不合法!");
}
//如果设置了签名但是签名为空，则抛异常
else if (GetValue("sign") == null || GetValue("sign").ToString() == "")
{
WxLog.Error(this.GetType().ToString(), "WxPayData签名存在但不合法!");
throw new WxPayException("WxPayData签名存在但不合法!");
}
//获取接收到的签名
string return_sign = GetValue("sign").ToString();
//在本地计算新的签名
string cal_sign = MakeSign();
if (cal_sign == return_sign)
{
return(true);
}
WxLog.Error(this.GetType().ToString(), "WxPayData签名验证错误!");
throw new WxPayException("WxPayData签名验证错误!");
}
public override void ProcessNotify()
{
WxPayData notifyData = GetNotifyData();
//检查openid和product_id是否返回
if (!notifyData.IsSet("openid") || !notifyData.IsSet("product_id"))
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "回调数据异常");
WxLog.Info(this.GetType().ToString(), "The data WeChat post is error : " + res.ToXml());
return;
}
//调统一下单接口，获得下单结果
string openid = notifyData.GetValue("openid").ToString();
string product_id = notifyData.GetValue("product_id").ToString();
WxPayData unifiedOrderResult = new WxPayData();
try
{
unifiedOrderResult = UnifiedOrder(openid, product_id);
}
catch (Exception ex)//若在调统一下单接口时抛异常，立即返回结果给微信支付后台
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "统一下单失败");
WxLog.Error(this.GetType().ToString(), "UnifiedOrder failure : " + res.ToXml());
return;
}
//若下单失败，则立即返回结果给微信支付后台
if (!unifiedOrderResult.IsSet("appid") || !unifiedOrderResult.IsSet("mch_id") || !unifiedOrderResult.IsSet("prepay_id"))
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "统一下单失败");
WxLog.Error(this.GetType().ToString(), "UnifiedOrder failure : " + res.ToXml());
return;
}
//统一下单成功,则返回成功结果给微信支付后台
WxPayData data = new WxPayData();
data.SetValue("return_code", "SUCCESS");
data.SetValue("return_msg", "OK");
data.SetValue("appid", WxPayConfig.APPID);
data.SetValue("mch_id", WxPayConfig.MCHID);
data.SetValue("nonce_str", WxPayApi.GenerateNonceStr());
data.SetValue("prepay_id", unifiedOrderResult.GetValue("prepay_id"));
data.SetValue("result_code", "SUCCESS");
data.SetValue("err_code_des", "OK");
data.SetValue("sign", data.MakeSign());
WxLog.Info(this.GetType().ToString(), "UnifiedOrder success , send data to WeChat : " + data.ToXml());
return;
}
/**
* @values格式化成能在Web页面上显示的结果（因为web页面上不能直接输出xml格式的字符串）
*/
public string ToPrintStr()
{
string str = "";
foreach (KeyValuePair <string, object> pair in m_values)
{
if (pair.Value == null)
{
WxLog.Error(this.GetType().ToString(), "WxPayData内部含有值为null的字段!");
throw new WxPayException("WxPayData内部含有值为null的字段!");
}
str += string.Format("{0}={1}<br>", pair.Key, pair.Value.ToString());
}
return(str);
}
/**
* @Dictionary格式转化成url参数格式
* @ return url格式串, 该串不包含sign字段值
*/
public string ToUrl()
{
string buff = "";
foreach (KeyValuePair <string, object> pair in m_values)
{
if (pair.Value == null)
{
WxLog.Error(this.GetType().ToString(), "WxPayData内部含有值为null的字段!");
throw new WxPayException("WxPayData内部含有值为null的字段!");
}
if (pair.Key != "sign" && pair.Value.ToString() != "")
{
buff += pair.Key + "=" + pair.Value + "&";
}
}
buff = buff.Trim('&');
return(buff);
}
/// <summary>
/// 接收从微信支付后台发送过来的数据并验证签名
/// </summary>
/// <returns>微信支付后台返回的数据</returns>
public WxPayData GetNotifyData()
{
//接收从微信后台POST过来的数据
System.IO.Stream s = HttpContext.Current.Request.InputStream;
int count = 0;
byte[] buffer = new byte[1024];
StringBuilder builder = new StringBuilder();
while ((count = s.Read(buffer, 0, 1024)) > 0)
{
builder.Append(Encoding.UTF8.GetString(buffer, 0, count));
}
s.Flush();
s.Close();
s.Dispose();
WxLog.Info(this.GetType().ToString(), "Receive data from WeChat : " + builder.ToString());
//转换数据格式并验证签名
WxPayData data = new WxPayData();
try
{
data.FromXml(builder.ToString());
}
catch (WxPayException ex)
{
////若签名错误，则立即返回结果给微信支付后台
//WxPayData res = new WxPayData();
data.SetValue("return_code", "FAIL");
data.SetValue("return_msg", ex.Message);
WxLog.Error(this.GetType().ToString(), "Sign check error : " + data.ToXml());
}
WxLog.Info(this.GetType().ToString(), "Check sign success");
return(data);
}
/**
* @将Dictionary转成xml
* @return 经转换得到的xml串
* @throws WxPayException
**/
public string ToXml()
{
//数据为空时不能转化为xml格式
if (0 == m_values.Count)
{
WxLog.Error(this.GetType().ToString(), "WxPayData数据为空!");
throw new WxPayException("WxPayData数据为空!");
}
string xml = "<xml>";
foreach (KeyValuePair <string, object> pair in m_values)
{
//字段值不能为null，会影响后续流程
if (pair.Value == null)
{
WxLog.Error(this.GetType().ToString(), "WxPayData内部含有值为null的字段!");
throw new WxPayException("WxPayData内部含有值为null的字段!");
}
if (pair.Value.GetType() == typeof(int))
{
xml += "<" + pair.Key + ">" + pair.Value + "</" + pair.Key + ">";
}
else if (pair.Value.GetType() == typeof(string))
{
xml += "<" + pair.Key + ">" + "<![CDATA[" + pair.Value + "]]></" + pair.Key + ">";
}
else//除了string和int类型不能含有其他数据类型
{
WxLog.Error(this.GetType().ToString(), "WxPayData字段数据类型错误!");
throw new WxPayException("WxPayData字段数据类型错误!");
}
}
xml += "</xml>";
return(xml);
}
/**
* @将xml转为WxPayData对象并返回对象内部的数据
* @param string 待转换的xml串
* @return 经转换得到的Dictionary
* @throws WxPayException
*/
public SortedDictionary <string, object> FromXml(string xml)
{
if (string.IsNullOrEmpty(xml))
{
WxLog.Error(this.GetType().ToString(), "将空的xml串转换为WxPayData不合法!");
throw new WxPayException("将空的xml串转换为WxPayData不合法!");
}
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xml);
XmlNode xmlNode = xmlDoc.FirstChild;//获取到根节点<xml>
XmlNodeList nodes = xmlNode.ChildNodes;
foreach (XmlNode xn in nodes)
{
XmlElement xe = (XmlElement)xn;
m_values[xe.Name] = xe.InnerText;//获取xml的键值对到WxPayData内部的数据中
}
try
{
//2015-06-29 错误是没有签名
if (m_values["return_code"] != "SUCCESS")
{
return(m_values);
}
CheckSign();//验证签名,不通过会抛异常
}
catch (WxPayException ex)
{
throw new WxPayException(ex.Message);
}
return(m_values);
}
/**
* 刷卡支付完整业务流程逻辑
* @param body 商品描述
* @param total_fee 总金额
* @param auth_code 支付授权码
* @throws WxPayException
* @return 刷卡支付结果
*/
public static string Run(string body, string total_fee, string auth_code)
{
WxLog.Info("MicroPay", "Micropay is processing...");
WxPayData data = new WxPayData();
data.SetValue("auth_code", auth_code); //授权码
data.SetValue("body", body); //商品描述
data.SetValue("total_fee", int.Parse(total_fee)); //总金额
data.SetValue("out_trade_no", WxPayApi.GenerateOutTradeNo()); //产生随机的商户订单号
WxPayData result = WxPayApi.Micropay(data, 10); //提交被扫支付，接收返回结果
//如果提交被扫支付接口调用失败，则抛异常
if (!result.IsSet("return_code") || result.GetValue("return_code").ToString() == "FAIL")
{
string returnMsg = result.IsSet("return_msg") ? result.GetValue("return_msg").ToString() : "";
WxLog.Error("MicroPay", "Micropay API interface call failure, result : " + result.ToXml());
throw new WxPayException("Micropay API interface call failure, return_msg : " + returnMsg);
}
//签名验证
result.CheckSign();
WxLog.Debug("MicroPay", "Micropay response check sign success");
//刷卡支付直接成功
if (result.GetValue("return_code").ToString() == "SUCCESS" &&
result.GetValue("result_code").ToString() == "SUCCESS")
{
WxLog.Debug("MicroPay", "Micropay business success, result : " + result.ToXml());
return(result.ToPrintStr());
}
/******************************************************************
* 剩下的都是接口调用成功，业务失败的情况
* ****************************************************************/
//1）业务结果明确失败
if (result.GetValue("err_code").ToString() != "USERPAYING" &&
result.GetValue("err_code").ToString() != "SYSTEMERROR")
{
WxLog.Error("MicroPay", "micropay API interface call success, business failure, result : " + result.ToXml());
return(result.ToPrintStr());
}
//2）不能确定是否失败，需查单
//用商户订单号去查单
string out_trade_no = data.GetValue("out_trade_no").ToString();
//确认支付是否成功,每隔一段时间查询一次订单，共查询10次
int queryTimes = 10; //查询次数计数器
while (queryTimes-- > 0)
{
int succResult = 0; //查询结果
WxPayData queryResult = Query(out_trade_no, out succResult);
//如果需要继续查询，则等待2s后继续
if (succResult == 2)
{
Thread.Sleep(2000);
continue;
}
//查询成功,返回订单查询接口返回的数据
else if (succResult == 1)
{
WxLog.Debug("MicroPay", "Mircopay success, return order query result : " + queryResult.ToXml());
return(queryResult.ToPrintStr());
}
//订单交易失败，直接返回刷卡支付接口返回的结果，失败原因会在err_code中描述
else
{
WxLog.Error("MicroPay", "Micropay failure, return micropay result : " + result.ToXml());
return(result.ToPrintStr());
}
}
//确认失败，则撤销订单
WxLog.Error("MicroPay", "Micropay failure, Reverse order is processing...");
if (!Cancel(out_trade_no))
{
WxLog.Error("MicroPay", "Reverse order failure");
throw new WxPayException("Reverse order failure！");
}
return(result.ToPrintStr());
}
public static string Post(string xml, string url, bool isUseCert, int timeout)
{
System.GC.Collect(); //垃圾回收，回收没有正常关闭的http连接
string result = ""; //返回结果
HttpWebRequest request = null;
HttpWebResponse response = null;
Stream reqStream = null;
try
{
//设置最大连接数
ServicePointManager.DefaultConnectionLimit = 200;
//设置https验证方式
if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.ServerCertificateValidationCallback =
new RemoteCertificateValidationCallback(CheckValidationResult);
}
/***************************************************************
* 下面设置HttpWebRequest的相关属性
* ************************************************************/
request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
request.Timeout = timeout * 1000;
//设置代理服务器
//WebProxy proxy = new WebProxy(); //定义一个网关对象
//proxy.Address = new Uri(WxPayConfig.PROXY_URL); //网关服务器端口:端口
//request.Proxy = proxy;
//设置POST的数据类型和长度
request.ContentType = "text/xml";
byte[] data = System.Text.Encoding.UTF8.GetBytes(xml);
request.ContentLength = data.Length;
//是否使用证书
if (isUseCert)
{
string path = HttpContext.Current.Request.PhysicalApplicationPath;
X509Certificate2 cert = new X509Certificate2(path + WxPayConfig.SSLCERT_PATH, WxPayConfig.SSLCERT_PASSWORD);
request.ClientCertificates.Add(cert);
WxLog.Debug("WxPayApi", "PostXml used cert");
}
//往服务器写入数据
reqStream = request.GetRequestStream();
reqStream.Write(data, 0, data.Length);
reqStream.Close();
//获取服务端返回
response = (HttpWebResponse)request.GetResponse();
//获取服务端返回数据
StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
result = sr.ReadToEnd().Trim();
sr.Close();
}
catch (System.Threading.ThreadAbortException e)
{
WxLog.Error("HttpService", "Thread - caught ThreadAbortException - resetting.");
WxLog.Error("Exception message: {0}", e.Message);
System.Threading.Thread.ResetAbort();
}
catch (WebException e)
{
WxLog.Error("HttpService", e.ToString());
if (e.Status == WebExceptionStatus.ProtocolError)
{
WxLog.Error("HttpService", "StatusCode : " + ((HttpWebResponse)e.Response).StatusCode);
WxLog.Error("HttpService", "StatusDescription : " + ((HttpWebResponse)e.Response).StatusDescription);
}
throw new WxPayException(e.ToString());
}
catch (Exception e)
{
WxLog.Error("HttpService", e.ToString());
throw new WxPayException(e.ToString());
}
finally
{
//关闭连接和流
if (response != null)
{
response.Close();
}
if (request != null)
{
request.Abort();
}
}
return(result);
}
/// <summary>
/// 处理http GET请求，返回数据
/// </summary>
/// <param name="url">请求的url地址</param>
/// <returns>http GET成功后返回的数据，失败抛WebException异常</returns>
public static string Get(string url)
{
System.GC.Collect();
string result = "";
HttpWebRequest request = null;
HttpWebResponse response = null;
//请求url以获取数据
try
{
//设置最大连接数
ServicePointManager.DefaultConnectionLimit = 200;
//设置https验证方式
if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.ServerCertificateValidationCallback =
new RemoteCertificateValidationCallback(CheckValidationResult);
}
/***************************************************************
* 下面设置HttpWebRequest的相关属性
* ************************************************************/
request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "GET";
//设置代理
//WebProxy proxy = new WebProxy();
//proxy.Address = new Uri(WxPayConfig.PROXY_URL);
//request.Proxy = proxy;
//获取服务器返回
response = (HttpWebResponse)request.GetResponse();
//获取HTTP返回数据
StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
result = sr.ReadToEnd().Trim();
sr.Close();
}
catch (System.Threading.ThreadAbortException e)
{
WxLog.Error("HttpService", "Thread - caught ThreadAbortException - resetting.");
WxLog.Error("Exception message: {0}", e.Message);
System.Threading.Thread.ResetAbort();
}
catch (WebException e)
{
WxLog.Error("HttpService", e.ToString());
if (e.Status == WebExceptionStatus.ProtocolError)
{
WxLog.Error("HttpService", "StatusCode : " + ((HttpWebResponse)e.Response).StatusCode);
WxLog.Error("HttpService", "StatusDescription : " + ((HttpWebResponse)e.Response).StatusDescription);
}
throw new WxPayException(e.ToString());
}
catch (Exception e)
{
WxLog.Error("HttpService", e.ToString());
throw new WxPayException(e.ToString());
}
finally
{
//关闭连接和流
if (response != null)
{
response.Close();
}
if (request != null)
{
request.Abort();
}
}
return(result);
}
