1.支付寶集成
第一步:先簽約支付寶,申請應(yīng)用(別忘了生成的 RSA 密鑰的上傳)
https://doc.open.alipay.com/doc2/detail.htm?spm=0.0.0.0.6i3qlX&treeId=58&articleId=103542&docType=1
第二步:下載支付寶官方的 SDK, 把第一步申請得到的 sellID,partnerID,私鑰(privateKey)放到代碼中,為了測試我們配置的 key 是否正確,如果支付寶 demo 能支付成功,就代表我們配置的 key 成功了,反之去重復(fù)第一步吧

L:148
    NSString *partner = @"xxxxxxx";
    NSString *seller = @"xxxxxxx";
    NSString *privateKey = @"xxxxxxx" ;//注意空格!!

第三步:配置支付寶到 app
1>配置庫,看支付寶官方的就好,比哪都詳細(xì)
https://doc.open.alipay.com/doc2/detail.htm?spm=0.0.0.0.l0wbHb&treeId=59&articleId=103676&docType=1
但要注意: "Header Search Paths”增加頭文件路徑：$(SRCROOT)/項(xiàng)目名稱!!!!
還有記得設(shè)置回調(diào)
2>把下圖的文件從支付寶官方 demo 中拷貝過來

屏幕快照 2016-01-30 下午3.02.18.png

編譯,如果有報(bào)錯(cuò),缺庫就導(dǎo)庫,頭文件就 header search paths,
我還需要一個(gè)報(bào)錯(cuò),導(dǎo)了一個(gè) demo 里沒有的庫:libstdc++.6.0.9. tbd
3>處理支付的商品信息,簽名等等
導(dǎo)入頭文件

#import "Order.h"
#import <AlipaySDK/AlipaySDK.h>
#import "DataSigner.h"

處理支付業(yè)務(wù)

 /**
             *  1.生成訂單信息
             */
            Order *order = [[Order alloc]init];
            order.partner = PARTNER;
            order.seller = SELLER;
            order.tradeNO = self.orderCode;
            order.productName = @"這是一個(gè)支付寶測試";
            order.productDescription = @"我說了這是一個(gè)測試數(shù)據(jù)";
            order.amount = [NSString stringWithFormat:@"%.2f",0.01];
            //回調(diào) URL
            order.notifyURL = @"url url url ";
            order.service = @"mobile.securitypay.pay";
            order.paymentType = @"1";
            order.inputCharset = @"utf-8";
            order.itBPay = @"30m";
            order.showUrl = @"m.alipay.com";
            
            // 應(yīng)用注冊scheme,在當(dāng)前項(xiàng)目的Info.plist定義URL types
            NSString *appScheme = @"";//同 url types
            //將訂單信息拼接成在字符串
            NSString *orderSpec = [order description];

第一步基本上和官方 demo 一樣,比微信好多了(不得不吐槽一下)

 /**
             *  2.簽名加密
             *  獲取私鑰并將商戶信息簽名, 外部商戶可以根據(jù)情況存放私鑰和簽名, 只需要遵循 RSA 簽名規(guī)范, 并將簽名字符串 base64 編碼和 UrlEncode
             */
            NSString *str = PRIVATE;
            id<DataSigner> signer = CreateRSADataSigner(str);
            NSString *signedString = [signer signString:orderSpec];

請直接copy demo 這一部分

           /**
             *  3. 將簽名成功字符串格式化為訂單字符串,請嚴(yán)格按照該格式
             */
            NSString *orderString = nil;
            if (signedString != nil) {
                orderString = [NSString stringWithFormat:@"%@&sign=\"%@\"&sign_type=\"%@\"",
                               orderSpec, signedString, @"RSA"];
                
                [[AlipaySDK defaultService] payOrder:orderString fromScheme:appScheme callback:^(NSDictionary *resultDic) {
                    //處理你的支付結(jié)果
                    NSLog(@"resuly===%@",resultDic);
                    }
                }];
            }

appDelegate里面需要設(shè)置

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{
/**
     *  Alipay
     */
    //如果極簡開發(fā)包不可用,會跳轉(zhuǎn)支付寶錢包進(jìn)行支付,需要將支付寶錢包的支付結(jié)果回傳給開 發(fā)包
    if ([url.host isEqualToString:@"safepay"]) {
        [[AlipaySDK defaultService]processOrderWithPaymentResult:url
         standbyCallback:^(NSDictionary *resultDic) {
#warning ======支付結(jié)果處理
             NSLog(@"ewsult====%@",resultDic);
         }];
    }
    
    //支付寶錢包快登授權(quán)返回
    if ([url.host isEqualToString:@"platformapi"]) {
        [[AlipaySDK defaultService]processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
#warning ======支付結(jié)果處理
             NSLog(@"ewsult====%@",resultDic);
        }];
    }
}

支付寶就這么多了,很簡單的代碼,一般的配置,復(fù)雜的申請....

2.微信支付
做微信支付是有挺多小坑的,這個(gè)坑主要取決于你的后臺怎么樣,微信不同于支付寶的是,它把支付過程分成了兩步,就到導(dǎo)致了后臺需要先做第一步,再傳數(shù)據(jù)給前端,然后前端去完成第二步.

第一步是:向微信注冊你的應(yīng)用程序 ID
這一步?jīng)]什么技術(shù),按照流程就好了(這都是產(chǎn)品經(jīng)理做的吧.....)
https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419317780&token=f6e95c1f1c5fd970d5fb3b2425e2d612b6cbce47&lang=zh_CN
照這個(gè)流程來就好
第二步:下載官方 demo
https://pay.weixin.qq.com/wiki/doc/api/app.php?chapter=11_1
其實(shí)不推薦官方的 demo...而且微信的官方 demo 不像支付寶一樣還可以用來去檢查 appId,等等值是否配好
第三步:配置微信 SDK

屏幕快照 2016-01-31 下午5.28.57.png

需要配置的庫好像跟支付寶差不多...
第四步:調(diào)用微信支付 SDK
這個(gè)第四步就要分情況討論了
微信的支付流程是先獲取prePayid,再加appid,appkey,noncestr,package,partnerId,timestamp去簽名完成支付.
第一種情況:如果你的后臺去完成獲取預(yù)支付訂單
這種是微信支付官方推薦的,而且這樣更加安全,相關(guān)的配置信息和 key 都存在服務(wù)器更加安全.
這種情況前端需要在用戶發(fā)起微信支付后吧訂單信息傳給服務(wù)器(傳遞的信息需要溝通),返回值為

     // 調(diào)起微信支付
            PayReq *request = [[PayReq alloc]init];
            request.partnerId = _WXPayModel.partnerid;
            request.prepayId = _WXPayModel.prepayid;
            request.package = @"Sign=WXPay";
            request.nonceStr = _WXPayModel.noncestr;
            request.timeStamp = [_WXPayModel.timestamp intValue];

package 一定要寫成那樣!
package 一定要寫成那樣!
package 一定要寫成那樣!

 // 這里要注意key里的值一定要填對， 微信官方給的參數(shù)名是錯(cuò)誤的，不是第二個(gè)字母大寫
            NSMutableDictionary *signParams = [NSMutableDictionary dictionary];
            [signParams setObject: _WXPayModel.appid               forKey:@"appid"];
            [signParams setObject: _WXPayModel.partnerid           forKey:@"partnerid"];
            [signParams setObject: request.nonceStr      forKey:@"noncestr"];
            [signParams setObject: request.package       forKey:@"package"];
            [signParams setObject: _WXPayModel.timestamp forKey:@"timestamp"];
            [signParams setObject: request.prepayId      forKey:@"prepayid"];
            
            //生成簽名
            NSString *sign  = [MyUtil genSign:signParams];
            NSLog(@"sign===%@",sign);
            
            //添加簽名
            request.sign = sign;
            
            [WXApi sendReq:request];

基本上調(diào)起支付的代碼就這樣...這當(dāng)然是在服務(wù)端完成第一步的情況下.
第二種情況:(如果你家后臺又懶又不會而且你又比較閑的話)

//微信支付
- (void)wxpay
{
    //商戶號
    NSString *PARTNER_ID    = @"1900000109";
    //商戶密鑰
    NSString *PARTNER_KEY   = @"8934e7d15453e97507ef794cf7b0519d";
    //APPID
    NSString *APPI_ID       = @"wxd930ea5d5a258f4f";
    //appsecret
    NSString *APP_SECRET = @"db426a9829e4b49a0dcac7b4162da6b6";
    //支付密鑰
    NSString *APP_KEY       = @"L8LrMqqeGRxST5reouB0K66CaYAWpqhAVsq7ggKkxHCOastWksvuX1uvmvQclxaHoYd3ElNBrNO2DHnnzgfVG9Qs473M3DTOZug5er46FhuGofumV8H2FVR9qkjSlC5K";
    NSLog(@"%ld,%ld,%ld",PARTNER_KEY.length,APP_SECRET.length,APP_KEY.length);
    //支付結(jié)果回調(diào)頁面
    NSString *NOTIFY_URL    = @"http://localhost/pay/wx/notify_url.asp";
    //訂單標(biāo)題
    NSString *ORDER_NAME    = @"Ios客戶端簽名支付 測試";
    //訂單金額,單位（分）
    NSString *ORDER_PRICE   = @"1";
    
    //創(chuàng)建支付簽名對象
    payRequsestHandler *req = [payRequsestHandler alloc];
    //初始化支付簽名對象
    [req init:APPI_ID app_secret:APP_SECRET partner_key:PARTNER_KEY app_key:APP_KEY];
    
    //判斷Token過期時(shí)間咳燕，10分鐘內(nèi)不重復(fù)獲取,測試帳號多個(gè)使用蔼两，可能造成其他地方獲取后不能用侵浸，需要即時(shí)獲取
    time_t  now;
    time(&now);
    //if ( (now - token_time) > 0 )//非測試帳號調(diào)試請啟用該條件判斷
    {
        //獲取Token
        Token                   = [req GetToken];
        //設(shè)置Token有效期為10分鐘
        token_time              = now + 600;
        //日志輸出
        NSLog(@"獲取Token： %@\n",[req getDebugifo]);
    }
    if ( Token != nil){
        //================================
        //預(yù)付單參數(shù)訂單設(shè)置
        //================================
        NSMutableDictionary *packageParams = [NSMutableDictionary dictionary];
        [packageParams setObject: @"WX"                                             forKey:@"bank_type"];
        [packageParams setObject: ORDER_NAME                                        forKey:@"body"];
        [packageParams setObject: @"1"                                              forKey:@"fee_type"];
        [packageParams setObject: @"UTF-8"                                          forKey:@"input_charset"];
        [packageParams setObject: NOTIFY_URL                                        forKey:@"notify_url"];
        [packageParams setObject: [NSString stringWithFormat:@"%ld",time(0)]        forKey:@"out_trade_no"];
        [packageParams setObject: PARTNER_ID                                        forKey:@"partner"];
        [packageParams setObject: @"196.168.1.1"                                    forKey:@"spbill_create_ip"];
        [packageParams setObject: ORDER_PRICE                                       forKey:@"total_fee"];
        
        NSString    *package, *time_stamp, *nonce_str, *traceid;
        //獲取package包
        package  = [req genPackage:packageParams];
        
        //輸出debug info
        NSString *debug     = [req getDebugifo];
        NSLog(@"gen package: %@\n",package);
        NSLog(@"生成package: %@\n",debug);
        
        //設(shè)置支付參數(shù)
        time_stamp  = [NSString stringWithFormat:@"%ld", now];
        nonce_str = [TenpayUtil md5:time_stamp];
        traceid  = @"mytestid_001";
        NSMutableDictionary *prePayParams = [NSMutableDictionary dictionary];
        [prePayParams setObject: APPI_ID                                            forKey:@"appid"];
        [prePayParams setObject: APP_KEY                                            forKey:@"appkey"];
        [prePayParams setObject: nonce_str                                          forKey:@"noncestr"];
        [prePayParams setObject: package                                            forKey:@"package"];
        [prePayParams setObject: time_stamp                                         forKey:@"timestamp"];
        [prePayParams setObject: traceid                                            forKey:@"traceid"];
        
        //生成支付簽名
        NSString    *sign;
        sign  = [req createSHA1Sign:prePayParams];
        //增加非參與簽名的額外參數(shù)
        [prePayParams setObject: @"sha1"                                            forKey:@"sign_method"];
        [prePayParams setObject: sign                                               forKey:@"app_signature"];
        
        //獲取prepayId
        NSString *prePayid;
        prePayid            = [req sendPrepay:prePayParams];
        //輸出debug info
        debug               = [req getDebugifo];
        NSLog(@"提交預(yù)付單： %@\n",debug);
        
        if ( prePayid != nil) {
            //重新按提交格式組包，微信客戶端5.0.3以前版本只支持package=Sign=***格式，須考慮升級后支持?jǐn)y帶package具體參數(shù)的情況
            //package       = [NSString stringWithFormat:@"Sign=%@",package];
            package         = @"Sign=WXPay";
            //簽名參數(shù)列表
            NSMutableDictionary *signParams = [NSMutableDictionary dictionary];
            [signParams setObject: APPI_ID                                          forKey:@"appid"];
            [signParams setObject: APP_KEY                                          forKey:@"appkey"];
            [signParams setObject: nonce_str                                        forKey:@"noncestr"];
            [signParams setObject: package                                          forKey:@"package"];
            [signParams setObject: PARTNER_ID                                       forKey:@"partnerid"];
            [signParams setObject: time_stamp                                       forKey:@"timestamp"];
            [signParams setObject: prePayid                                         forKey:@"prepayid"];
            
            //生成簽名
            sign  = [req createSHA1Sign:signParams];
            
            //輸出debug info
            debug     = [req getDebugifo];
            NSLog(@"調(diào)起支付簽名： %@\n",debug);
            
            //調(diào)起微信支付
            PayReq* req = [[PayReq alloc] init];
            req.openID      = APPI_ID;
            req.partnerId   = PARTNER_ID;
            req.prepayId    = prePayid;
            req.nonceStr    = nonce_str;
            req.timeStamp   = now;
            req.package     = package;
            req.sign        = sign;
            [WXApi safeSendReq:req];
        }else{
            /*long errcode = [req getLasterrCode];
             if ( errcode == 40001 )
             {//Token實(shí)效，重新獲取
             Token                   = [req GetToken];
             token_time              = now + 600;
             NSLog(@"獲取Token： %@\n",[req getDebugifo]);
             };*/
            NSLog(@"獲取prepayid失敗\n");
            [self alert:@"提示信息" msg:debug];
        }
    }else{
        NSLog(@"獲取Token失敗\n");
        [self alert:@"提示信息" msg:@"獲取Token失敗"];
    }
    
}

第四步:設(shè)置 url回調(diào)以及等等瑣碎的東西
1.info URL Types 設(shè)置app回調(diào)
2.appdelegate中注冊 app

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
    [WXApi registerApp:@"xxxxxxxxxxxx" withDescription:@"xxxxxx"];

微信支付完成后會通過 appdelegate 中的代理方法發(fā)送通知,處理支付結(jié)果

if ([resp isKindOfClass:[PayResp class]]) {
        PayResp *response = (PayResp *)resp;
        NSLog(@"response.errCoderesponse.errCoderesponse.errCode%d",response.errCode);
        
        switch (response.errCode) {
            case WXSuccess:{
                NSLog(@"successWXPay");
                NSNotification *notification = [NSNotification notificationWithName:@"orderPay" object:@"success"];
                [[NSNotificationCenter defaultCenter]postNotification:notification];
                break;
            }
            case WXErrCodeCommon:
                [SVProgressHUD showErrorWithStatus:@"發(fā)送錯(cuò)誤"];
                break;
            
            case WXErrCodeUserCancel:
                [SVProgressHUD showErrorWithStatus:@"支付已取消"];
                break;
                
            case WXErrCodeSentFail:
                [SVProgressHUD showErrorWithStatus:@"發(fā)送失敗"];
                break;
                
            case WXErrCodeUnsupport:
                [SVProgressHUD showErrorWithStatus:@"微信不支持"];
                break;
//                WXErrCodeCommon     = -1,   /**< 普通錯(cuò)誤類型    */
//                WXErrCodeUserCancel = -2,   /**< 用戶點(diǎn)擊取消并返回    */
//                WXErrCodeSentFail   = -3,   /**< 發(fā)送失敗    */
//                WXErrCodeAuthDeny   = -4,   /**< 授權(quán)失敗    */
//                WXErrCodeUnsupport  = -5,   /**< 微信不支持    */
            default:{
                NSLog(@"wxpay");
                break;
            }
        }
    }

到這里微信支付就差不多完成了,如果出現(xiàn)微信的各種報(bào)錯(cuò),簡書上有很多,就不啰嗦了.
再說說做第三方支付的感受吧,其實(shí)我以后打算直接用 ping++了.......