3、后台调用统一下单API向微信服务器发送请求生成预付单,并生成一个prepay_id返回给后台,后台再将prepay_id返回给客户端,成功生成订单信息
成功生成订单
生成订单相关代码
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSDictionary *signParaDic = @{@"schoolId":schoolId, @"studentId":studentId, @"parentId":parentId, @"parentTel":phone, @"totalFee":[NSString stringWithFormat:@"%i",payProduct.totalFee], @"productId":[NSString stringWithFormat:@"%i",payProduct.productId], @"productName":payProduct.productName}; NSString *sign = [EncodeParameter md5:signParaDic]; NSDictionary *parameters = @{@"schoolId":schoolId, @"parentId":parentId, @"studentId":studentId, @"parentTel":phone, @"totalFee":[NSString stringWithFormat:@"%i",payProduct.totalFee], @"productId":[NSString stringWithFormat:@"%i",payProduct.productId], @"productName":payProduct.productName, @"sign":sign}; NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:WechatPlaceOrderAPI parameters:parameters error:nil]; _palceOrderOperation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) { // NSDictionary *resDic = (NSDictionary *)responseObject; NSNumber *code = [resDic objectForKey:@"result"]; NSString *msg = [resDic objectForKey:@"message"]; if ([code integerValue] == Success) { WeChatPreOrder *preOrder = [[WeChatPreOrder alloc] initWithDic:resDic]; if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderSucess:preOder:)]) { [self.delegate placeOrderSucess:self preOder:preOrder]; } } else if ([code integerValue] == 300) { if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderFailed:error:)]) { [self.delegate placeOrderFailed:self error:msg]; } }else { if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderFailed:error:)]) { [self.delegate placeOrderFailed:self error:RequestError]; } } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { if (self.delegate && [self.delegate respondsToSelector:@selector(placeOrderFailed:error:)]) { [self.delegate placeOrderFailed:self error:RequestError]; } }]; |
4、APP调用SDK打开微信,进行支付
微信客户端向微信服务器发起支付请求并返回支付结果(中间交互参数prepay_id,微信服务器要验证这个参数是否跟之前的prepay_id一致)
微信支付
调起微信支付相关代码
PayReq* req = [[PayReq alloc] init]; req.partnerId = weChatPreOrder.partnerId; req.prepayId = weChatPreOrder.prepayId; req.nonceStr = weChatPreOrder.noncestr; req.timeStamp = [weChatPreOrder.timestamp intValue]; req.package = weChatPreOrder.package; req.sign = weChatPreOrder.sign; [WXApi sendReq:req]; |
5、用户输入支付密码后,微信客户端跟微信服务器交互,确认支付
输入密码进行支付.png
6、微信服务器将支付结果返回给微信客户端,并异步发送支付结果给我们后台
客户端支付结果
7、客户端可以调用后台查询支付订单接口,查询是否支付成功,并显示支付结果
客户端支付结果
查询订单相关代码
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSDictionary *signParaDic = @{@"schoolId":[BCHTTPRequest schoolId],@"parentId":[BCHTTPRequest getUserId]}; NSString *sign = [EncodeParameter md5:signParaDic]; NSDictionary *parameters = @{@"schoolId":[BCHTTPRequest schoolId],@"parentId":[BCHTTPRequest getUserId],@"sign":sign}; NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:QueryOrderAPI parameters:parameters error:nil]; _operation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) { // NSDictionary *resDic = (NSDictionary *)responseObject; NSNumber *code = [resDic objectForKey:@"result"]; NSString *msg = [resDic objectForKey:@"message"]; if ([code integerValue] == Success) { NSArray *order = [self orderArray:resDic]; if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderSucess:orders:)]) { [self.delegate queryOrderSucess:self orders:order]; } } else if ([code integerValue] == 300) { if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderFailed:error:)]) { [self.delegate queryOrderFailed:self error:msg]; } }else { if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderFailed:error:)]) { [self.delegate queryOrderFailed:self error:RequestError]; } } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { if (self.delegate && [self.delegate respondsToSelector:@selector(queryOrderFailed:error:)]) { [self.delegate queryOrderFailed:self error:RequestError]; } }]; |
MD5签名相关代码
+ (NSString *)md5:(NSDictionary *)paraDic { // NOTE: 排序，得出最终请求字串 NSArray* sortedKeyArray = [[paraDic allKeys] sortedArrayUsingComparator:^NSComparisonResult(id _Nonnull obj1, id _Nonnull obj2) { return [obj1 compare:obj2]; }]; NSMutableArray *tmpArray = [NSMutableArray new]; for (NSString* key in sortedKeyArray) { NSString* value = [paraDic objectForKey:key]; if ([value isKindOfClass:[NSNumber class]]) { value = [(NSNumber *)value stringValue]; } if (value.length > 0) { NSString *keyValueStr = [NSString stringWithFormat:@"%@=%@",key,value]; [tmpArray addObject:keyValueStr]; } } NSString *parameterStr = [tmpArray componentsJoinedByString:@"&"]; NSString *res = [NSString stringWithFormat:@"%@&key=%@",parameterStr,Key]; return [[BCBaseObject MD5Hash:res] uppercaseString]; } |
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