iOS支付宝支付方法详解

基本上已经完成了，下面只需要拷贝demo里的测试代码，即可以进行支付宝支付了。

#pragma mark ==============产生随机订单号==============

- (NSString *)generateTradeNO
{
 static int kNumber = 15;
 
 NSString *sourceStr = @"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 NSMutableString *resultStr = [[NSMutableString alloc] init];
 srand((unsigned)time(0));
 for (int i = 0; i < kNumber; i++)
 {
  unsigned index = rand() % [sourceStr length];
  NSString *oneStr = [sourceStr substringWithRange:NSMakeRange(index, 1)];
  [resultStr appendString:oneStr];
 }
 return resultStr;
}

- (void)payForAlipay
{
 /*
  *点击获取prodcut实例并初始化订单信息
  */
 //Product *product = [self.productList objectAtIndex:indexPath.row];
 NSString *productName = @"支付宝测试商品"; //商品标题
 NSString *productDescription = @"支付宝测试商品描述"; //商品描述
 NSString *amount = @"0.01"; //商品价格
 NSString *notifyURL = @"http://www.easck.com//回调URL
 /*
  *商户的唯一的parnter和seller。
  *签约后，支付宝会为每个商户分配一个唯一的 parnter 和 seller。
  */
 
 /*============================================================================*/
 /*=======================需要填写商户app申请的===================================*/
 /*============================================================================*/
 NSString *partner = @"2088811956033819"; // 这是支付宝文档里的测试账号
 NSString *seller = @"xinyuxingbangxinxi@163.com"; // 这是支付宝文档里的测试账号
 NSString *privateKey = @"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";
 /*============================================================================*/
 /*============================================================================*/
 /*============================================================================*/
 
 //partner和seller获取失败,提示
 if ([partner length] == 0 ||
  [seller length] == 0 ||
  [privateKey length] == 0)
 {
  UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"
              message:@"缺少partner或者seller或者私钥。"
              delegate:self
            cancelButtonTitle:@"确定"
            otherButtonTitles:nil];
  [alert show];
  return;
 }
 
 /*
  *生成订单信息及签名
  */
 //将商品信息赋予AlixPayOrder的成员变量
 Order *order = [[Order alloc] init];
 order.partner = partner;
 order.seller = seller;
 order.tradeNO = [self generateTradeNO]; //订单ID（由商家自行制定）
 order.productName = productName; //商品标题
 order.productDescription = productDescription; //商品描述
 order.amount = [NSString stringWithFormat:@"%.2f",[amount doubleValue]]; //商品价格
 order.notifyURL = notifyURL; //回调URL
 
 order.service = @"mobile.securitypay.pay";
 order.paymentType = @"1";
 order.inputCharset = @"utf-8";
 order.itBPay = @"30m";
 order.showUrl = @"m.alipay.com";
 
 //应用注册scheme,在AlixPayDemo-Info.plist定义URL types
 NSString *appScheme = @"alisdkPaydemo";
 
 //将商品信息拼接成字符串
 NSString *orderSpec = [order description];
 NSLog(@"orderSpec = %@",orderSpec);
 
 //获取私钥并将商户信息签名,外部商户可以根据情况存放私钥和签名,只需要遵循RSA签名规范,并将签名字符串base64编码和UrlEncode
 id<DataSigner> signer = CreateRSADataSigner(privateKey);
 NSString *signedString = [signer signString:orderSpec];
 
 //将签名成功字符串格式化为订单字符串,请严格按照该格式
 NSString *orderString = nil;
 if (signedString != nil) {
  orderString = [NSString stringWithFormat:@"%@&sign="%@"&sign_type="%@"",
      orderSpec, signedString, @"RSA"];
  
  NSLog(@"%@",orderString);
  [[AlipaySDK defaultService] payOrder:orderString fromScheme:appScheme callback:^(NSDictionary *resultDic) {
   NSLog(@"reslut = %@",resultDic);
   // 这里填写需要回调的页面，比如，跳转到支付成功页面。
//   BSPayResultViewController *payState = [[BSPayResultViewController alloc] init];
//   payState.title =[resultDic[@"resultStatus"] isEqualToString:@"9000"]?@"支付成功": @"支付失败";
//   payState.orderId = self.paymentModel.order_id;
//   payState.amount = self.paymentModel.order_amount;
//   payState.payType = @"支付宝支付";
//   payState.failure = resultDic[@"memo"];
//   [self.navigationController pushViewController:payState animated:NO];
  }];
 }
 
}

								 
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