Payu money支付网关集成

Question

我正在尝试在我的应用中集成payu钱支付网关。 Paypal收集所有信息并完成交易并返回到我自定义的网址页面。

我的问题是如何从payu资金网关成功交易后获得响应代码？

int i = arc4random() % 9999999999; 
NSString *strHash = [self createSHA512:[NSString stringWithFormat:@"%d%@",i,[NSDate date]]]; 
NSString *txnid1 = [strHash substringToIndex:20]; 
NSLog(@"tnx1 id %@",txnid1); 

// NSString *key = @"JBZaLc"; 
// NSString* salt = @"GQs7yium"; 

NSString *key = @"gtKFFx"; 
NSString* salt = @"eCwWELxi"; 

NSString *amount = dataMoney.usrAmount; 
NSString *productInfo = @"App Products Info "; 
NSString *firstname = dataMoney.usrName; 
NSString *email = dataMoney.usrEmail; 
NSString *phone = dataMoney.usrMobile; 

NSString *surl = @"https://dl.dropboxusercontent.com/s/dtnvwz5p4uymjvg/success.html"; 
NSString *furl = @"https://dl.dropboxusercontent.com/s/z69y7fupciqzr7x/furlWithParams.html"; 

NSString *hashValue = [NSString stringWithFormat:@"%@|%@|%@|%@|%@|%@|||||||||||%@",key,txnid1,amount,productInfo,firstname,email,salt]; 

NSString *hash = [self createSHA512:hashValue]; 
NSDictionary *parameters = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:txnid1,key,amount,productInfo,firstname,email,phone,surl,furl,hash, nil] forKeys:[NSArray arrayWithObjects:@"txnid",@"key",@"amount",@"productinfo",@"firstname",@"email",@"phone",@"surl",@"furl",@"hash", nil]]; 

__block NSString *post = @""; 
[parameters enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) { 
    if ([post isEqualToString:@""]) { 
     post = [NSString stringWithFormat:@"%@=%@",key,obj]; 
    }else{ 
     post = [NSString stringWithFormat:@"%@&%@=%@",post,key,obj]; 
    } 

}]; 

NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 

NSString *postLength = [NSString stringWithFormat:@"%lu",(unsigned long)[postData length]]; 
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; 
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"https://test.payu.in/_payment"]]]; 
// change URL for live 
[request setHTTPMethod:@"POST"]; 
[request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Current-Type"]; 
[request setHTTPBody:postData]; 

[web_view_PayU loadRequest:request]; 

Answer 1

#define Merchant_Key @"your merchant key " 
#define Salt @"your salt key" 
#define Base_URL @"https://secure.payu.in" 

> //this base url in case of origional payment key's if you want to integarate with 
test key's write base Url can check in payumoney Faq 

** 
#define Success_URL @"https://www.google.co.in/" 
#define Failure_URL @"http://www.bing.com/" 
#define Product_Info @"Denim Jeans" 
#define Paid_Amount @"1549.00" 
#define Payee_Name @"Suraj Mirajkar" 
-(void)viewWillAppear:(BOOL)animated { 
    [super viewWillAppear:YES]; 
    [self setTitle:@"Make A Payment"]; 
    [self initPayment]; 
} 

- (void)viewDidLoad { 
    [super viewDidLoad]; 
    activityIndicatorView = [[UIActivityIndicatorView alloc] init]; 
    activityIndicatorView.center = self.view.center; 
    [activityIndicatorView setColor:[UIColor blackColor]]; 
    [self.view addSubview:activityIndicatorView]; 
} 

-(void)initPayment { 
    int i = arc4random() % 9999999999; 
    NSString *strHash = [self createSHA512:[NSString stringWithFormat:@"%d%@",i,[NSDate date]]];// Generatehash512(rnd.ToString() + DateTime.Now); 
    NSString *txnid1 = [strHash substringToIndex:20]; 
    strMIHPayID = txnid1; 
    NSString *key = Merchant_Key; 
    NSString *amount =[[NSUserDefaults standardUserDefaults] 
       stringForKey:@"orderprice"]; 

    //NSString *amount = Paid_Amount; 
    NSString *productInfo = Product_Info; 
    NSString *firstname = Payee_Name; 
    NSString *email = [NSString stringWithFormat:@"suraj%d@yopmail.com",i]; 

//ADD A fake mail For Payment for testing purpose 


    // Generated a fake mail id for testing 
    NSString *phone = @"9762159571"; 
    NSString *serviceprovider = @"payu_paisa"; 

    NSString *hashValue = [NSString stringWithFormat:@"%@|%@|%@|%@|%@|%@|||||||||||%@",key,txnid1,amount,productInfo,firstname,email,Salt]; 
    NSString *hash = [self createSHA512:hashValue]; 
    NSDictionary *parameters = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:txnid1,key,amount,productInfo,firstname,email,phone,Success_URL,Failure_URL,hash,serviceprovider 
                    , nil] forKeys:[NSArray arrayWithObjects:@"txnid",@"key",@"amount",@"productinfo",@"firstname",@"email",@"phone",@"surl",@"furl",@"hash",@"service_provider", nil]]; 
    NSLog(@"%@",parameters); 
    __block NSString *post = @""; 
    [parameters enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) { 
     if ([post isEqualToString:@""]) { 
      post = [NSString stringWithFormat:@"%@=%@",key,obj]; 
     } else { 
      post = [NSString stringWithFormat:@"%@&%@=%@",post,key,obj]; 
     } 
    }]; 
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 
    NSString *postLength = [NSString stringWithFormat:@"%lu",(unsigned long)[postData length]]; 
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; 
    [request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@/_payment",Base_URL]]]; 
    [request setHTTPMethod:@"POST"]; 
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Current-Type"]; 
    [request setHTTPBody:postData]; 
    [_webviewPaymentPage loadRequest:request]; 
    [activityIndicatorView startAnimating]; 
} 
-(NSString *)createSHA512:(NSString *)string { 
    const char *cstr = [string cStringUsingEncoding:NSUTF8StringEncoding]; 
    NSData *data = [NSData dataWithBytes:cstr length:string.length]; 
    uint8_t digest[CC_SHA512_DIGEST_LENGTH]; 
    CC_SHA512(data.bytes, (CC_LONG)data.length, digest); 
    NSMutableString* output = [NSMutableString stringWithCapacity:CC_SHA512_DIGEST_LENGTH * 2]; 
    for(int i = 0; i < CC_SHA512_DIGEST_LENGTH; i++) { 
     [output appendFormat:@"%02x", digest[i]]; 
    } 
    return output; 
} 
#pragma UIWebView - Delegate Methods 
-(void)webViewDidStartLoad:(UIWebView *)webView { 
    NSLog(@"WebView started loading"); 
} 
-(void)webViewDidFinishLoad:(UIWebView *)webView { 
    [activityIndicatorView stopAnimating]; 
    if (webView.isLoading) { 
     return; 
    } 
    NSURL *requestURL = [[_webviewPaymentPage request] URL]; 
    NSLog(@"WebView finished loading with requestURL: %@",requestURL); 
    NSString *getStringFromUrl = [NSString stringWithFormat:@"%@",requestURL]; 
    if ([self containsString:getStringFromUrl :Success_URL]) { 
     [self performSelector:@selector(delayedDidFinish:) withObject:getStringFromUrl afterDelay:0.0]; 
    } else if ([self containsString:getStringFromUrl :Failure_URL]) { 
     // FAILURE ALERT 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Sorry !!!" message:@"Your transaction failed. Please try again!" delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 
     alert.tag = 1; 
     [alert show]; 
    } 
} 
-(void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error { 
    [activityIndicatorView stopAnimating]; 
    NSURL *requestURL = [[_webviewPaymentPage request] URL]; 
    NSLog(@"WebView failed loading with requestURL: %@ with error: %@ & error code: %ld",requestURL, [error localizedDescription], (long)[error code]); 
    if (error.code == -1009 || error.code == -1003 || error.code == -1001) { //error.code == -999 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Oops !!!" message:@"Please check your internet connection!" delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 
     alert.tag = 1; 
     [alert show]; 
    } 
} 
- (void)delayedDidFinish:(NSString *)getStringFromUrl { 
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 
     NSMutableDictionary *mutDictTransactionDetails = [[NSMutableDictionary alloc] init]; 
     [mutDictTransactionDetails setObject:strMIHPayID forKey:@"Transaction_ID"]; 
     [mutDictTransactionDetails setObject:@"Success" forKey:@"Transaction_Status"]; 
     [mutDictTransactionDetails setObject:Payee_Name forKey:@"Payee_Name"]; 
     [mutDictTransactionDetails setObject:Product_Info forKey:@"Product_Info"]; 
     [mutDictTransactionDetails setObject:Paid_Amount forKey:@"Paid_Amount"]; 
     [self navigateToPaymentStatusScreen:mutDictTransactionDetails]; 
    }); 
} 

#pragma UIAlertView - Delegate Method 
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { 
    if (alertView.tag == 1 && buttonIndex == 0) { 
     // Navigate to Payment Status Screen 
     NSMutableDictionary *mutDictTransactionDetails = [[NSMutableDictionary alloc] init]; 
     [mutDictTransactionDetails setObject:Payee_Name forKey:@"Payee_Name"]; 
     [mutDictTransactionDetails setObject:Product_Info forKey:@"Product_Info"]; 
     [mutDictTransactionDetails setObject:Paid_Amount forKey:@"Paid_Amount"]; 
     [mutDictTransactionDetails setObject:strMIHPayID forKey:@"Transaction_ID"]; 
     [mutDictTransactionDetails setObject:@"Failed" forKey:@"Transaction_Status"]; 
     [self navigateToPaymentStatusScreen:mutDictTransactionDetails]; 
    } 
} 

- (BOOL)containsString: (NSString *)string : (NSString*)substring { 
    return [string rangeOfString:substring].location != NSNotFound; 
} 

- (void)navigateToPaymentStatusScreen: (NSMutableDictionary *)mutDictTransactionDetails { 
    dispatch_async(dispatch_get_main_queue(), ^{ 
     PaymentStatusViewController *paymentStatusViewController = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"PaymentStatusScreenID"]; 
     paymentStatusViewController.mutDictTransactionDetails = mutDictTransactionDetails; 
     [self.navigationController pushViewController:paymentStatusViewController animated:YES]; 
    }); 
} 


Important Note : you can check your Merchant key and Salt in seller Dashboard after Login ... Go To my account and check your merchant key and salt