项目实战工商银行支付对接

　　.NET对接工商银行支付对接
　　项目中遇到对接【工商银行扫码支付】的同学可以参考使用1. 接口调用事项需使用RSA2加密方式可以使用官方SDK方式调用或直接调用API传输过程中注意API开放平台通用参数需要URLEncode,biz_content在form的body中提交，form中要指明Content-Type属性,Content-Type: application/x-www-form-urlencoded。 需要准备APP_ID，MY_PRIVATE_KEY:RSA私钥 ，APIGW_PUBLIC_KEY:网关公钥 2. 对接流程图
　　3.工银扫码支付接口
　　实现扫客户二维码完成支付业务         /// 
         /// 工银二维码被扫支付         /// 
         ///          ///          ///          ///          public static bool Pay(string DealID, string nAmount, string qr_code, ref PayResponseV2 pay)         {             try             {                 string TradeDate = DateTime.Now.ToString(＂yyyyMMdd＂);                 string TradeTime = DateTime.Now.ToString(＂HHmmss＂);                  /// 
                 /// 非页面服务实现类(RSA加解密方式)                  /// 
                 /// 应用id                 /// RSA私钥                 /// 网关公钥                 /// 非页面服务实现类实例                 DefaultIcbcClient client = new DefaultIcbcClient(APP_ID, SIGN_TYPE, MY_PRIVATE_KEY, APIGW_PUBLIC_KEY);                  ///新建服务请求类实例                 PayRequestV2 request = new PayRequestV2();                 ///新建服务请求类的业务参数类，该类为内部类                 PayRequestV2.PayRequestV2Biz bizContent = new PayRequestV2.PayRequestV2Biz();                 ///为请求类设置各种参数                 request.setServiceUrl(ConfigurationManager.AppSettings[＂被扫支付＂].ToString());                  bizContent.setmer_id(mer_id);                 bizContent.setqr_code(qr_code);                 bizContent.setOutTradeNo(DealID);                 bizContent.setOrderAmt(nAmount);                 bizContent.setTradeDate(TradeDate);                 bizContent.setTradeTime(TradeTime);                  request.setBizContent(bizContent);                  //同步调用并返回response响应类                 PayResponseV2 response = null;                 try                 {                     response = (PayResponseV2)client.execute(request);                     if (response.isSuccess())                     {                         //成功                         pay = response;                         return true;                     }                     else                     {                         //失败                         String errormsg = ＂支付失败 : ＂ + response.getReturnMsg();                         pay = response;                         return false;                     }                 }                 catch (System.Net.WebException e)                  {                     pay.setReturnMsg( e.Message);                     return false;                 }             }             catch (Exception ex)             {                 pay.setReturnMsg(ex.Message);                 return false;             }         }4.工银订单查询
　　实现支付成功后查询查询订单        /// 
         /// 工银二维码查询         /// 
         /// 支付时工行返回的用户唯一标识         /// 商户系统订单号         /// 行内系统订单号         ///          public static bool Query(string cust_id, string out_trade_no, string order_id, ref QueryResponse query)         {             try             {                 string TradeDate = DateTime.Now.ToString(＂yyyyMMdd＂);                 string TradeTime = DateTime.Now.ToString(＂HHmmss＂);                 /// 
                 /// 非页面服务实现类(RSA加解密方式)                  /// 
                 /// 应用id                 /// RSA私钥                 /// 网关公钥                 /// 非页面服务实现类实例                 DefaultIcbcClient client = new DefaultIcbcClient(APP_ID, SIGN_TYPE, MY_PRIVATE_KEY, APIGW_PUBLIC_KEY);                  ///新建服务请求类实例                 QueryRequest request = new QueryRequest();                 ///新建服务请求类的业务参数类，该类为内部类                 QueryRequest.QueryRequestBiz bizContent = new QueryRequest.QueryRequestBiz();                 ///为请求类设置各种参数                 request.setServiceUrl(ConfigurationManager.AppSettings[＂查询＂].ToString());                  bizContent.setmer_id(mer_id);                 bizContent.setcust_id(cust_id);//支付时工行返回的用户唯一标识                  bizContent.setout_trade_no(out_trade_no);//商户系统订单号                 bizContent.setorder_id(order_id);//行内系统订单号                  request.setBizContent(bizContent);                  //同步调用并返回response响应类                 QueryResponse response = null;                 try                 {                     response = (QueryResponse)client.execute(request);                     if (response.isSuccess())                     {                         //成功                         query = response;                         return true;                     }                     else                     {                         //失败                         query = response;                         String errormsg = ＂查询失败 : ＂ + response.getReturnMsg();                         return false;                     }                 }                 catch (System.Net.WebException e) //无法连接到远程服务器，网络异常                 {                     query.setReturnMsg(e.Message);                     return false;                 }                 catch (Exception ex)//抛出其他异常                 {                     query.setReturnMsg(ex.Message);                     return false;                 }                  return false;             }             catch (Exception ex)             {                 query.setReturnMsg(ex.Message);                 return false;             }          }5.工银二维码退款
　　实现工商银行订单退款       /// 
         /// 工银二维码退款         /// 
         /// 支付时工行返回的用户唯一标识         /// 商户系统订单号         /// 行内系统订单号         /// 商户系统生成的退款编号         /// 退款金额，单位：分          /// 操作人员ID          ///          public static bool Reject(string cust_id, string out_trade_no, string order_id, string reject_no, string reject_amt, string oper_id, ref RejectResponse reject)         {             try             {                 string TradeDate = DateTime.Now.ToString(＂yyyyMMdd＂);                 string TradeTime = DateTime.Now.ToString(＂HHmmss＂);                 /// 
                 /// 非页面服务实现类(RSA加解密方式)                  /// 
                 /// 应用id                 /// RSA私钥                 /// 网关公钥                 /// 非页面服务实现类实例                 DefaultIcbcClient client = new DefaultIcbcClient(APP_ID, SIGN_TYPE, MY_PRIVATE_KEY, APIGW_PUBLIC_KEY);                  ///新建服务请求类实例                 RejectRequest request = new RejectRequest();                 ///新建服务请求类的业务参数类，该类为内部类                 RejectRequest.RejectRequestBiz bizContent = new RejectRequest.RejectRequestBiz();                 ///为请求类设置各种参数                 request.setServiceUrl(ConfigurationManager.AppSettings[＂退款＂].ToString());                  bizContent.setmer_id(mer_id);                 bizContent.setcust_id(cust_id);//支付时工行返回的用户唯一标识                  bizContent.setout_trade_no(out_trade_no);//商户系统订单号                 bizContent.setorder_id(order_id);//行内系统订单号                 bizContent.setreject_no(reject_no);                 bizContent.setreject_amt(reject_amt);                 //bizContent.setoper_id(reject_no);                   request.setBizContent(bizContent);                  //同步调用并返回response响应类                 RejectResponse response = null;                 try                 {                     response = (RejectResponse)client.execute(request);                     if (response.isSuccess())                     {                         //成功                         reject = response;                         return true;                     }                     else                     {                         //失败                         reject = response;                         String errormsg = ＂退款失败 : ＂ + response.getReturnMsg();                         return false;                     }                 }                 catch (System.Net.WebException e) //无法连接到远程服务器，网络异常                 {                     reject.setReturnMsg(e.Message);                 }                 catch (Exception ex)//抛出其他异常                 {                     reject.setReturnMsg(ex.Message);                 }                  return false;             }             catch (Exception ex)             {                 reject.setReturnMsg(ex.Message);                 return false;             }          } 6.工银二维码退款查询
　　实现订单退款成功状态未知时发起查询接口        /// 
         /// 工银二维码退款查询         /// 
         /// 支付时工行返回的用户唯一标识         /// 商户系统订单号         /// 行内系统订单号         /// 商户系统生成的退款编号         ///          public static bool RejectQuery(string cust_id, string out_trade_no, string order_id, string reject_no, ref RejectQueryResponse rejectQuery)         {             try             {                 string TradeDate = DateTime.Now.ToString(＂yyyyMMdd＂);                 string TradeTime = DateTime.Now.ToString(＂HHmmss＂);                 /// 
                 /// 非页面服务实现类(RSA加解密方式)                  /// 
                 /// 应用id                 /// RSA私钥                 /// 网关公钥                 /// 非页面服务实现类实例                 DefaultIcbcClient client = new DefaultIcbcClient(APP_ID, SIGN_TYPE, MY_PRIVATE_KEY, APIGW_PUBLIC_KEY);                  ///新建服务请求类实例                 RejectQueryRequest request = new RejectQueryRequest();                 ///新建服务请求类的业务参数类，该类为内部类                 RejectQueryRequest.RejectQueryRequestBiz bizContent = new RejectQueryRequest.RejectQueryRequestBiz();                 ///为请求类设置各种参数                 request.setServiceUrl(ConfigurationManager.AppSettings[＂退货查询＂].ToString());                  bizContent.setmer_id(mer_id);                 bizContent.setcust_id(cust_id);//支付时工行返回的用户唯一标识                  bizContent.setout_trade_no(out_trade_no);//商户系统订单号                 bizContent.setorder_id(order_id);//行内系统订单号                 bizContent.setreject_no(reject_no);                   request.setBizContent(bizContent);                  //同步调用并返回response响应类                 RejectQueryResponse response = null;                 try                 {                     response = (RejectQueryResponse)client.execute(request);                     if (response.isSuccess())                     {                         //成功                         rejectQuery = response;                         return true;                     }                     else                     {                         //失败                         String errormsg = ＂查询失败 : ＂ + response.getReturnMsg();                         rejectQuery = response;                         return false;                     }                 }                 catch (System.Net.WebException e) //无法连接到远程服务器，网络异常                 {                     rejectQuery.setReturnMsg(e.Message);                 }                 catch (Exception ex)//抛出其他异常                 {                     rejectQuery.setReturnMsg(ex.Message);                 }                  return false;             }             catch (Exception ex)             {                 rejectQuery.setReturnMsg(ex.Message);                 return false;             }          }