IOS微信支付

下載下傳 SDK:

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

申請資格:

http://kf.qq.com/faq/120911VrYVrA150906F3qqY3.html

開發文檔:

https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=3_1

導入類庫

将下載下傳好的 微信支付 SDK 拉到工程裡面

裡面的 read_me.txt 裡面有對應的重要說明

在 info.plist 裡面添加

<key>LSApplicationQueriesSchemes</key>
<array>
<string>weixin</string>
</array>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
           

然後檢視 info.plist

如果檔案顯示如下則成功添加：

接着到 URL Types 添加你的微信開發者帳号ID

接下來開始寫代碼了

AppDelegate.h

#import "AppDelegate.h"
#import "WXApi.h"
//必須遵守協定
@interface AppDelegate ()<WXApiDelegate>

@end

@implementation AppDelegate


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

    /*
      微信測試APPID wxb4ba3c02aa476ea1
     1.導入微信支付 SDK,注冊微信支付
     2.設定微信的 APPID 為 URL Schemes
     3.發起支付，調起微信支付
     4.處理支付結果
     */
    [WXApi registerApp:@"你的 ID" withDescription:@"wxdemo"];


    return YES;
}


-(void)onResp:(BaseResp *)resp
{
    if ([resp isKindOfClass:[PayResp class]])
    {
        //傳回支付結果,實際支付結果需要取微信服務端查詢
        NSString *strMsg = @"支付結果";
        switch (resp.errCode) {
            case WXSuccess:
                strMsg = @"支付成功";
                NSLog(@"支付成功-PaySuccess,resp.errCode = %d",resp.errCode);
                break;

            default:
                strMsg = @"支付失敗";
                NSLog(@"支付失敗-PaySuccess,resp.errCode = %d,resp.errStr = %@",resp. errCode,resp.errStr);
                break;
        }

        UIAlertController *alertController = [UIAlertController alertControllerWithTitle:[NSString stringWithFormat:@"%d",resp.errCode ]message:resp.errStr preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *sure = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

        }];
        [alertController addAction:sure];
        [self.window.rootViewController presentViewController:alertController animated:YES completion:^{

        }];
    }
}

- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options
{

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

ViewController.m

#import "ViewController.h"
#import "WXApi.h"
@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

}
- (IBAction)payBtnAction:(id)sender {
    [ViewController jumpToBizPay];
}

+ (NSString *)jumpToBizPay {


    if (![WXApi isWXAppInstalled]) {
        NSLog(@"該裝置沒有安裝微信");
        return @"該裝置沒有安裝微信";
    }
    if (![WXApi isWXAppSupportApi]) {
        NSLog(@"該設定不支援微信支付");
        return @"該設定不支援微信支付";
    }


    //============================================================
    // V3&V4支付流程實作
    // 注意:參數配置請檢視伺服器端Demo
    // 更新時間：2015年11月20日
    //============================================================
    NSString *urlString   = @"http://wxpay.weixin.qq.com/pub_v2/app/app_pay.php?plat=ios";
    //解析服務端傳回json資料
    NSError *error;
    //加載一個NSURL對象
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];
    //将請求的url資料放到NSData對象中
    NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    if ( response != nil) {
        NSMutableDictionary *dict = NULL;
        //IOS5自帶解析類NSJSONSerialization從response中解析出資料放到字典中
        dict = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error];

        NSLog(@"url:%@",urlString);
        if(dict != nil){
            NSMutableString *retcode = [dict objectForKey:@"retcode"];
            if (retcode.intValue == ){
                NSMutableString *stamp  = [dict objectForKey:@"timestamp"];

                //調起微信支付
                PayReq* req = [[PayReq alloc] init];
                req.partnerId = [dict objectForKey:@"partnerid"];
                req.prepayId = [dict objectForKey:@"prepayid"];
                req.nonceStr = [dict objectForKey:@"noncestr"];
                req.timeStamp = stamp.intValue;
                req.package = [dict objectForKey:@"package"];
                req.sign = [dict objectForKey:@"sign"];
                [WXApi sendReq:req];
                //日志輸出
                NSLog(@"appid=%@\npartid=%@\nprepayid=%@\nnoncestr=%@\ntimestamp=%ld\npackage=%@\nsign=%@",[dict objectForKey:@"appid"],req.partnerId,req.prepayId,req.nonceStr,(long)req.timeStamp,req.package,req.sign );
                return @"";
            }else{
                return [dict objectForKey:@"retmsg"];
            }
        }else{
            return @"伺服器傳回錯誤，未擷取到json對象";
        }
    }else{
        return @"伺服器傳回錯誤";
    }
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end