应用场景:
去年六月应公司业务发展需要,我们开发要求接入微信支付和支付宝支付。一直没有总结出来留下只言片语告诫后来人,现如今有时间来整理下。
总的来说国内的微信支付还是比较坑的,demo一般开发过程中会遇到很多问题问题。打开微信支付开放平台给了一张图,说明其流程,但是我想说的是这TM有个卵用。老子只要的是一个支付而已,就是生成一订单提交给服务器,并调起支付好么?(这都是后话)好了不在吐槽说正事
第一步
打开该连接https://pay.weixin.qq.com/index.php/core/home/login?return_url=%2F 注册商户,忘记了是每年三百块还是总共三百块,注册之后会有几个工作日的审核,请耐心等待,待审核通过后注册应用后我们会拿到应用的ID用于参数填写。
第二步
pods入微信支付sdk,并填写相关参数
[WXApi registerApp:@"你的微信APPID" withDescription:@"Wechat"];
applelegate中添加用这个方法,这个另外一个是坑
-(void)onResp:(BaseResp*)resp{//微信ios9.0以下的方法
if ([resp isKindOfClass:[PayResp class]]){
PayResp *response = (PayResp *)resp;
NSString *codeString=[NSString stringWithFormat:@"%d",response.errCode];
switch (response.errCode) {
case WXSuccess: {
UIWindow *window = [[UIApplication sharedApplication] keyWindow];
[MBProgressHUD showMessage:@"正在处理支付结果..." toView:window];
[Noti_Center postNotificationName:WX_PAY object:codeString];
break;
}
case WXErrCodeCommon:
[Noti_Center postNotificationName:WX_PAY object:codeString];
break;
case WXErrCodeUserCancel:
[Noti_Center postNotificationName:WX_PAY object:codeString];
break;
default:
break;
}
} // 向微信请求授权后,得到响应结果
if ([resp isKindOfClass:[SendAuthResp class]]) {
SendAuthResp *temp = (SendAuthResp *)resp;
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
NSString *accessUrlStr = [NSString stringWithFormat:@"%@/oauth2/access_token?appid=%@&secret=%@&code=%@&grant_type=authorization_code", WX_BASE_URL, kWeiXinAppID, kWeiXinSecret, temp.code];
manager.responseSerializer.acceptableContentTypes =[NSSet setWithObjects:@"text/html",@"text/plain",@"application/json", nil];
[manager GET:accessUrlStr parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"请求access的response = %@", responseObject);
NSDictionary *accessDict = [NSDictionary dictionaryWithDictionary:responseObject];
NSString *accessToken = [accessDict objectForKey:kWeiXinAccessToken];
NSString *openID = [accessDict objectForKey:kWeiXinOpenId];
NSString *refreshToken = [accessDict objectForKey:kWeiXinRefreshToken];
//本地持久化,以便access_token的使用、刷新或者持续
//NSLog(@"bbb%@ %@",accessToken,openID);
if (accessToken && ![accessToken isEqualToString:@""] && openID && ![openID isEqualToString:@""]) {
[[NSUserDefaults standardUserDefaults] setObject:accessToken forKey:kWeiXinAccessToken];
[[NSUserDefaults standardUserDefaults] setObject:openID forKey:kWeiXinOpenId];
[[NSUserDefaults standardUserDefaults] setObject:refreshToken forKey:kWeiXinRefreshToken];
[[NSUserDefaults standardUserDefaults] synchronize]; // 命令直接同步到文件里,来避免数据的丢失
}
[self wechatLoginByRequestForUserInfo];
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"获取access_token时出错 = %@", error);
}];
}
}
第三步
调起app支付操作
if ([balanceData.paymentMold isEqualToString:WX_PAY]) {//微信支付
//判断微信是否存在
if ([WXApi isWXAppInstalled]) {
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(WX_PAYStatus:) name:WX_PAY object:nil];
HAOrderSubmitViewController *submitVc = (HAOrderSubmitViewController *)[self viewController];
NSString *productName = @"违章代缴";
HAProduct *product = [[HAProduct alloc] init];
product.amount = [NSString stringWithFormat:@"%@f",balanceData.lastMoney];//金额
product.tradeNO = orderMsg.orderNo;//订单号
product.productName = productName;//商品名
[submitVc sendWX_PayWithOrderProduct:product];
}else{
WX_APPAlert=[[HAAlertView alloc]initWithTitle:nil message:@"微信尚未安装,是否安装微信" delegate:self cancelButtonTitle:@"取消" sureButtonTitle:@"确认"];
[WX_APPAlert show];
}
}
支付回调,有坑见文末
- (void)WX_PAYStatus:(NSNotification *)notication{
[self removeNotificationWithName:WX_PAY];
if ([notication.object isEqualToString:@"0"]) {
//修改订单状态
// NSLog(@"支付成功");
//修改服务端订单状态
[self changePaySatusWitherrCode:notication.object];
[[NSNotificationCenter defaultCenter] postNotificationName:tableViewData object:nil];
}else if ([notication.object isEqualToString:@"-2"]){
//取消支付,关闭微信订单,生成新订单,避免影响下一次操作
//NSLog(@"操作取消");
[MBProgressHUD showMessage:@"取消支付"];
HAOrderSubmitViewController *submitVc = (HAOrderSubmitViewController *)[self viewController];
HAPayOnLineContriller *test =(HAPayOnLineContriller *)[self viewController];
[submitVc.navigationController popToViewController:test animated:YES];
[[NSNotificationCenter defaultCenter] postNotificationName:tableViewData object:nil];
[HAMKManger createOrderWithOrderDetail:orderMsg.orderDetail
CouponsId:orderMsg.couponsId
OrderAmount:orderMsg.orderAmount
GoodsAmount:orderMsg.goodsAmount
OrderType:@"1" Completion:^(NSDictionary *dict,NSInteger state) {
//DLog(@"%@",dict);
[self closeWX_OrderNetworkOrderCode:dict[@"result"]];
}];
}
}
遇见的坑:
- 低版本适配:我们有个测试机一直保持是iOS8.0的系统在支付的时候不能调起支付页面,其没有向下兼容
- URLShem填写正确
- 微信订单提交bug:微信支付订单处理个人觉得是有点问题的,当你在支付模块集成两种或两种以上支付方式作如下操作:在APP客户端提交订单调取微信支付进入微信APP后取消支付操作,而后重新提交同一订单将会出现错误,于是我们在取消支付是时候关闭该订单并生成新订单,不知道微信现在有没有处理这个问题