微信支付SDK集成

   拖了很久的微信支付,记下来就是为了以后再用的时候不用很晕。自己感觉微信支付相对于支付宝简单多了。也有可能是先做的支付宝支付所以遇到的困难多,之后熟悉流程就简单了。直接了当来---

   SDK集成流程都一样:

     

  (1)SDK下载、导入,framework框架导入:

      SDK下载地址:https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=11_1   

      在Target —> BuildPhases —> Link Binary With Libraries 路径下导入需要的库:

      

    • SystemConfiguration.framework
    • libz.tbd
    • libsqlite3.0.tbd
    • CoreTelephony.framework
    • QuartzCore.framework

 

  (2)设置白名单、回调URL Scheme(target--info里面,两个都有了,这里的是假的,不能暴露信息!)

 

   (3)完成项目中代码的实现。

       1.在APPDelegate.m文件中。完成以下方法中代码的迁移。

      - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions;

      - (BOOL) application:(UIApplication *)application handleOpenURL:(NSURL *)url;

      - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation;

      (下面的方法中,有我的支付宝支付的代码,前边已经写了支付宝支付!就没有删,懂就行了!银联支付的已经删了--)

       

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     //appkey(这里是假的)
    [WXApi registerApp:@"wx5d64383823d57a11" withDescription:@"demo 2.0"];

    return YES;
}

- (BOOL) application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
    return [WXApi handleOpenURL:url delegate:self];
}
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
    
    if ([url.host isEqualToString:@"safepay"]) {
        // 支付跳转支付宝钱包进行支付,处理支付结果
        [[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
            
        }];
        
        // 授权跳转支付宝钱包进行支付,处理支付结果
        [[AlipaySDK defaultService] processAuth_V2Result:url standbyCallback:^(NSDictionary *resultDic) {
            
            // 解析 auth code
            NSString *result = resultDic[@"result"];
            NSString *authCode = nil;
            if (result.length>0) {
                NSArray *resultArr = [result componentsSeparatedByString:@"&"];
                for (NSString *subResult in resultArr) {
                    if (subResult.length > 10 && [subResult hasPrefix:@"auth_code="]) {
                        authCode = [subResult substringFromIndex:10];
                        break;
                    }
                }
            }
            NSLog(@"授权结果 authCode = %@", authCode?:@"");
        }];
        
        return [WXApi handleOpenURL:url delegate:self];
    }
    
    return YES;

}

    

    2.在APPDelegate.m中。处理微信的回调,这里边就是支付的结果。(微信很多功能都是通过onResp这个方法回调结果,可以好好看看WXApiObject.h这个文件,里面注释写得挺清楚的)

    

-(void)onResp:(BaseResp*)resp{
    if ([resp isKindOfClass:[PayResp class]]){
        PayResp*response=(PayResp*)resp;
        switch(response.errCode){
            case WXSuccess:
                //服务器端查询支付通知或查询API返回的结果再提示成功
                LOG(@"支付成功");
                break;
            default:
                LOG(@"支付失败,retcode=%d",resp.errCode);
                break;
        }
    }
}

 

  (4)当我们支付的时候,微信需要我们的商品信息。跟支付宝支付一样,需要的MD5加密、签名操作都要在服务器做,我们只需要跟服务器交互拿到要传的参数就好了。(涉及到钱,关键信息一定一定在不能放在客户端中!!!)

    这里把支付封装到一个单例类中,直接调用就好了。(这里已经跟服务器对接好,请求到了订单信息)

    

- (void)wxPrepay:(int)payid charge:(float)paymoney
{
    [NetworkingHelper Networking:NetworkingTypePay param:^(NSMutableDictionary *parames) {
        [parames setObject:@(1) forKey:@"pcid"];
        [parames setObject:@(paymoney) forKey:@"paymoney"];
        [parames setObject:[BWUser currentUser].channelid forKey:@"userID"];
        [parames setObject:@(payid) forKey:@"payid"];
    } completion:^(NSError *error, id obj) {
        if ([[obj objectForKey:@"result"] intValue] == 0) {
            NSDictionary* prepayInfo = [obj objectForKey:@"info"];

            NSDate * datenow = [NSDate date];

            NSString* timestam = [NSString stringWithFormat:@"%u",(unsigned int)[datenow timeIntervalSince1970]];
            NSDictionary* dic = @{
                                  //随机码
                                  @"noncestr":[prepayInfo objectForKey:@"nonce_str"],
                                  //预下单编号
                                  @"prepayid":[prepayInfo objectForKey:@"prepay_id"],
                                  //密钥
                                  @"key":[prepayInfo objectForKey:@"key"],
                                  //商铺号
                                  @"partnerid":[prepayInfo objectForKey:@"mch_id"],
                                  //appid
                                  @"appid":[prepayInfo objectForKey:@"appid"],
                                  //时间戳
                                  @"timestamp":timestam,
                                  //
                                  @"package":@"Sign=WXPay"
                                  };
            dispatch_async(dispatch_get_main_queue(), ^{
                [self wxPay:dic];
            });
            
        }
    }];
}

- (BOOL)wxPay:(NSDictionary*)payParams
{
    NSString * temp = [self sortetWithKey:payParams];
    PayReq *request = [[PayReq alloc] init];
    request.partnerId = [payParams objectForKey:@"partnerid"];
    request.prepayId= [payParams objectForKey:@"prepayid"];
    request.package = [payParams objectForKey:@"package"];
    request.nonceStr= [payParams objectForKey:@"noncestr"];
    request.timeStamp = [[payParams objectForKey:@"timestamp"] intValue];
    request.sign= [[temp MD5HexEncode] uppercaseString];
    
    return [WXApi sendReq:request];
}


- (NSString*)sortetWithKey:(NSDictionary*)params
{
    NSMutableString* paramStr = [[NSMutableString alloc] init];
    NSArray* keys = [params allKeys];
    
    //按字母顺序排序
    NSArray* sortedArray = [keys sortedArrayUsingComparator:^NSComparisonResult(id  _Nonnull obj1, id  _Nonnull obj2) {
        return [obj1 compare:obj2 options:NSNumericSearch];
    }];
    
    for(NSString* categoryId in sortedArray)
    {
        if (![categoryId isEqualToString:@"key"]) {
            [paramStr appendFormat:@"%@=%@&", categoryId, [params objectForKey:categoryId]];
        }
        
    }
    
    [paramStr appendFormat:@"key=%@", [params objectForKey:@"key"]];
    
    return paramStr;
}

  

  到这里就算完成了,最后处理一下支付成功、失败就可以了。

 

    

posted on 2017-03-28 10:29  黑鲤鱼与绿鲤鱼与驴  阅读(200)  评论(0编辑  收藏  举报

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