iOS第三方支付－微信支付

本文轉載自查看原文 2015-06-09 13:53 1844 第三方

微信支付用到的文件

1.首先支持非arc

2.設置URL types

3.AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[WXApi registerApp: @" wxd930ea5d5a258f4f " withDescription: @" demo 2.0 "];
return YES;
}

4.微信回調

// 處理微信通過URL啟動App時傳遞的數據

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

     return [WXApi handleOpenURL:url delegate:self];
}

// 微信回調
- ( void)onResp:(BaseResp *)resp {
     // errCode
     switch (resp.errCode) {
         case WXSuccess:
             // 成功回調
             break;
         default:
             break;
    }
}

5.調用微信支付（主要代碼，后台簽名）

   // 調起微信支付
            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];

6.如果要在程序簽名

//
//   ViewController.m
//   WxPay
//
//   Created by apple on 15/6/9.
//   Copyright (c) 2015年 tqh. All rights reserved.
//

#import " ViewController.h "
#import " payRequsestHandler.h "
#import " WXApi.h "

@interface ViewController () {
     enum WXScene _scene;
    NSString *Token;
     long token_time;
}

@end

@implementation ViewController

- (instancetype)init
{
    self = [super init];
     if (self) {
        _scene = WXSceneSession;
    }
    token_time = 0;
     return self;
}

- ( void)viewDidLoad {
    [super viewDidLoad];
     // 向微信注冊


     // 微信支付
    UIButton *but2 = [[UIButton alloc]initWithFrame:CGRectMake( 200, 100, 100, 40)];
    [but2 setTitle: @" 微信支付 " forState:UIControlStateNormal];
    but2.backgroundColor = [UIColor lightGrayColor];
    [but2 addTarget:self action:@selector(wxpay) forControlEvents:UIControlEventTouchUpInside];
    [but2 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [self.view addSubview:but2];

}

// 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 ";

     // 支付結果回調頁面
    NSString *NOTIFY_URL    = @" http://localhost/pay/wx/notify_url.asp ";
     // 訂單標題
    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過期時間，10分鍾內不重復獲取,測試帳號多個使用，可能造成其他地方獲取后不能用，需要即時獲取
    time_t  now;
    time(&now);
     // if ( (now - token_time) > 0 ) // 非測試帳號調試請啟用該條件判斷
    {
         // 獲取Token
        Token                   = [req GetToken];
         // 設置Token有效期為10分鍾
        token_time              = now + 600;
         // 日志輸出
        NSLog( @" 獲取Token： %@\n ",[req getDebugifo]);
    }
     if ( Token != nil){
         // ================================
         // 預付單參數訂單設置
         // ================================
        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);

         // 設置支付參數
        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
        [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，須考慮升級后支持攜帶package具體參數的情況
             // package       = [NSString stringWithFormat:@"Sign=%@",package];
            package         = @" Sign=WXPay ";
             // 簽名參數列表
            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( @" 調起支付簽名： %@\n ",debug);

             // 調起微信支付
            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 "];
    }

}

// 客戶端提示信息
- ( void)alert:(NSString *)title msg:(NSString *)msg
{
    UIAlertView *alter = [[UIAlertView alloc] initWithTitle:title message:msg delegate:nil cancelButtonTitle: @" OK " otherButtonTitles:nil];

    [alter show];
}

// - (void)onReq:(BaseReq *)req {
//     NSLog(@"qwe123");
// }

- ( void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
}

@end

DEMO下載地址：http://pan.baidu.com/s/1jGjCaJc

補：有些童鞋出現跳到微信支付又跳回來的情況一般是你集成了第三方分享功能需要進行一下判斷

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

上面方法里面進行是不是微信支付的判斷

if ([url.host isEqualToString: @" pay "]) {
        [WXApi handleOpenURL:url delegate:self];
    }

     return YES;

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