1.概念介绍

<1>苹果内购：

App内购买是指在苹果的 App Store 中购买应用程序的方式。
在玩一些游戏类应用软件，这些应用都可以免费下载，但是在玩的过程中就会需要在应用内付费，否则就只能玩几关之类的。有时候会不小心点击到一些内购按钮，或是小孩乱点导致扣费的情况。
另外苹果手机系统默认的 Apple ID 的密码时效为 15 分钟，意思就是当输入了一次 Apple ID 之后，在接下来的 15 分钟内，若是点击一些付费项目的话，系统就会直接使用 Apple ID 来购买了。

2.登录iTunes Connect，进入具体的app，点击右上角的功能，创建以供测试的内购产品

3.登录iTunes Connect，进入用户职能，点击沙箱技术测试员，创建测试员账号

注意：

<1>将要创建的测试员账号必须是之前没有注册过App Store的，所以要谨慎注册，谨慎删除。

<2>创建成功之后，我们必须得登录这个邮箱，完成App Store的邮箱验证。

<3>退出当前iPhone的iCloud，App Store的所有账号。

完成以上的操作，即可开始苹果内购的测试。

4.打开Xcode运行项目，开始代码层的编写；

我们先理一下内购的逻辑：

<1>定义好正式和测试的环境；

#if DEBUG
//沙盒测试环境验证
#define SANDBOX @"https://sandbox.itunes.apple.com/verifyReceipt"#else
//正式环境验证
#define AppStore @"https://buy.itunes.apple.com/verifyReceipt"#endif

<2>检查当前iPhone是否支持苹果内购；

-(void)startUserIAP{[[SKPaymentQueue defaultQueue] addTransactionObserver:self];_currentProId = @"yearmoneytest";if([SKPaymentQueue canMakePayments]){[self requestProductData:@"yearmoneytest"];}else{NSLog(@"不允许程序内付费");}
}

<3>去苹果服务器请求当前app里面的内购产品，如果请求成功，找到自己要购买的产品，并开始支付；

//去苹果服务器请求商品
- (void)requestProductData:(NSString *)type{NSLog(@"-------------请求对应的产品信息----------------");NSArray *product = [[NSArray alloc] initWithObjects:type,nil];NSSet *nsset = [NSSet setWithArray:product];SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:nsset];request.delegate = self;[request start];
}//收到产品返回信息
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{NSLog(@"--------------收到产品反馈消息---------------------");NSArray *product = response.products;if([product count] == 0){NSLog(@"--------------没有商品------------------");return;}NSLog(@"productID:%@", response.invalidProductIdentifiers);NSLog(@"产品付费数量:%lu",(unsigned long)[product count]);SKProduct *p = nil;for (SKProduct *pro in product) {NSLog(@"%@", [pro description]);NSLog(@"%@", [pro localizedTitle]);NSLog(@"%@", [pro localizedDescription]);NSLog(@"%@", [pro price]);NSLog(@"%@", [pro productIdentifier]);if([pro.productIdentifier isEqualToString:_currentProId]){p = pro;}}SKPayment *payment = [SKPayment paymentWithProduct:p];NSLog(@"发送购买请求");[[SKPaymentQueue defaultQueue] addPayment:payment];
}//请求失败
- (void)request:(SKRequest *)request didFailWithError:(NSError *)error{NSLog(@"------------------错误-----------------:%@", error);
}- (void)requestDidFinish:(SKRequest *)request{NSLog(@"------------反馈信息结束-----------------");
}

<4>监听购买的结果，如果购买成功，我们再去苹果服务器验证凭证；

//监听购买结果
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transaction{for(SKPaymentTransaction *tran in transaction){switch (tran.transactionState) {case SKPaymentTransactionStatePurchased:{NSLog(@"交易完成");// 发送到苹果服务器验证凭证[self verifyPurchaseWithPaymentTransaction];[[SKPaymentQueue defaultQueue] finishTransaction:tran];}break;case SKPaymentTransactionStatePurchasing:NSLog(@"商品添加进列表");break;case SKPaymentTransactionStateRestored:{NSLog(@"已经购买过商品");[[SKPaymentQueue defaultQueue] finishTransaction:tran];}break;case SKPaymentTransactionStateFailed:{NSLog(@"交易失败");[[NSNotificationCenter defaultCenter] postNotificationName:@"PaymentFailed" object:nil];[[SKPaymentQueue defaultQueue] finishTransaction:tran];}break;default:break;}}
}//交易结束
- (void)completeTransaction:(SKPaymentTransaction *)transaction{NSLog(@"交易结束");[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
}- (void)dealloc{[[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
}

/***  验证购买，避免越狱软件模拟苹果请求达到非法购买问题**/
-(void)verifyPurchaseWithPaymentTransaction{//从沙盒中获取交易凭证并且拼接成请求体数据NSURL *receiptUrl=[[NSBundle mainBundle] appStoreReceiptURL];NSData *receiptData=[NSData dataWithContentsOfURL:receiptUrl];NSString *receiptString=[receiptData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];//转化为base64字符串NSString *bodyString = [NSString stringWithFormat:@"{\"receipt-data\" : \"%@\"}", receiptString];//拼接请求数据NSData *bodyData = [bodyString dataUsingEncoding:NSUTF8StringEncoding];//创建请求到苹果官方进行购买验证NSURL *url=[NSURL URLWithString:SANDBOX];NSMutableURLRequest *requestM=[NSMutableURLRequest requestWithURL:url];requestM.HTTPBody=bodyData;requestM.HTTPMethod=@"POST";//创建连接并发送同步请求[[NSURLSession sharedSession] dataTaskWithRequest:requestM completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {if (error) {NSLog(@"验证购买过程中发生错误，错误信息：%@",error.localizedDescription);return;}NSDictionary *dic=[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];NSLog(@"%@",dic);if([dic[@"status"] intValue]==0){NSLog(@"购买成功！");[[NSNotificationCenter defaultCenter] postNotificationName:@"PaymentSuccess" object:nil];NSDictionary *dicReceipt= dic[@"receipt"];NSDictionary *dicInApp=[dicReceipt[@"in_app"] firstObject];NSString *productIdentifier= dicInApp[@"product_id"];//读取产品标识//如果是消耗品则记录购买数量，非消耗品则记录是否购买过NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];if ([productIdentifier isEqualToString:@"yearmoneytest"]) {NSInteger purchasedCount=[defaults integerForKey:productIdentifier];//已购买数量[defaults setInteger:(purchasedCount+1) forKey:productIdentifier];}else{[defaults setBool:YES forKey:productIdentifier];}[defaults synchronize];//在此处对购买记录进行存储，可以存储到开发商的服务器端}else{[[NSNotificationCenter defaultCenter] postNotificationName:@"PaymentFailed" object:nil];NSLog(@"购买失败，未通过验证！");}}];}

以上即是我分享的苹果内购总结，感谢阅读，欢迎指正。为方便大家使用，封装好了一套代码，一句话调用即可，下面是文件代码。

//
//  IAPManager.h
//  traffic
//
//  Created by Tommy on 2017/6/10.
//  Copyright © 2017年 Mqch295. All rights reserved.
//#import <Foundation/Foundation.h>@interface IAPManager : NSObject/***该类的对象必须在内存中一直存在，才可以执行完整个内购的流程***/
-(void)startUserIAP;@end

//
//  IAPManager.m
//  traffic
//
//  Created by Tommy on 2017/6/10.
//  Copyright © 2017年 Mqch295. All rights reserved.
//#if DEBUG
//沙盒测试环境验证
#define SANDBOX @"https://sandbox.itunes.apple.com/verifyReceipt"#else
//正式环境验证
#define AppStore @"https://buy.itunes.apple.com/verifyReceipt"#endif#import "IAPManager.h"
#import <StoreKit/StoreKit.h>@interface IAPManager()<SKPaymentTransactionObserver,SKProductsRequestDelegate>@property (nonatomic,copy) NSString *currentProId;@end@implementation IAPManager#pragma mark 公有方法-(void)startUserIAP{[[SKPaymentQueue defaultQueue] addTransactionObserver:self];_currentProId = @"yearmoneytest";if([SKPaymentQueue canMakePayments]){[self requestProductData:@"yearmoneytest"];}else{NSLog(@"不允许程序内付费");}
}#pragma mark 私有方法//去苹果服务器请求商品
- (void)requestProductData:(NSString *)type{NSLog(@"-------------请求对应的产品信息----------------");NSArray *product = [[NSArray alloc] initWithObjects:type,nil];NSSet *nsset = [NSSet setWithArray:product];SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:nsset];request.delegate = self;[request start];
}//收到产品返回信息
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{NSLog(@"--------------收到产品反馈消息---------------------");NSArray *product = response.products;if([product count] == 0){NSLog(@"--------------没有商品------------------");return;}NSLog(@"productID:%@", response.invalidProductIdentifiers);NSLog(@"产品付费数量:%lu",(unsigned long)[product count]);SKProduct *p = nil;for (SKProduct *pro in product) {NSLog(@"%@", [pro description]);NSLog(@"%@", [pro localizedTitle]);NSLog(@"%@", [pro localizedDescription]);NSLog(@"%@", [pro price]);NSLog(@"%@", [pro productIdentifier]);if([pro.productIdentifier isEqualToString:_currentProId]){p = pro;}}SKPayment *payment = [SKPayment paymentWithProduct:p];NSLog(@"发送购买请求");[[SKPaymentQueue defaultQueue] addPayment:payment];
}//请求失败
- (void)request:(SKRequest *)request didFailWithError:(NSError *)error{NSLog(@"------------------错误-----------------:%@", error);
}- (void)requestDidFinish:(SKRequest *)request{NSLog(@"------------反馈信息结束-----------------");
}/***  验证购买，避免越狱软件模拟苹果请求达到非法购买问题**/
-(void)verifyPurchaseWithPaymentTransaction{//从沙盒中获取交易凭证并且拼接成请求体数据NSURL *receiptUrl=[[NSBundle mainBundle] appStoreReceiptURL];NSData *receiptData=[NSData dataWithContentsOfURL:receiptUrl];NSString *receiptString=[receiptData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];//转化为base64字符串NSString *bodyString = [NSString stringWithFormat:@"{\"receipt-data\" : \"%@\"}", receiptString];//拼接请求数据NSData *bodyData = [bodyString dataUsingEncoding:NSUTF8StringEncoding];//创建请求到苹果官方进行购买验证NSURL *url=[NSURL URLWithString:SANDBOX];NSMutableURLRequest *requestM=[NSMutableURLRequest requestWithURL:url];requestM.HTTPBody=bodyData;requestM.HTTPMethod=@"POST";//创建连接并发送同步请求[[NSURLSession sharedSession] dataTaskWithRequest:requestM completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {if (error) {NSLog(@"验证购买过程中发生错误，错误信息：%@",error.localizedDescription);return;}NSDictionary *dic=[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];NSLog(@"%@",dic);if([dic[@"status"] intValue]==0){NSLog(@"购买成功！");[[NSNotificationCenter defaultCenter] postNotificationName:@"PaymentSuccess" object:nil];NSDictionary *dicReceipt= dic[@"receipt"];NSDictionary *dicInApp=[dicReceipt[@"in_app"] firstObject];NSString *productIdentifier= dicInApp[@"product_id"];//读取产品标识//如果是消耗品则记录购买数量，非消耗品则记录是否购买过NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];if ([productIdentifier isEqualToString:@"yearmoneytest"]) {NSInteger purchasedCount=[defaults integerForKey:productIdentifier];//已购买数量[defaults setInteger:(purchasedCount+1) forKey:productIdentifier];}else{[defaults setBool:YES forKey:productIdentifier];}[defaults synchronize];//在此处对购买记录进行存储，可以存储到开发商的服务器端}else{[[NSNotificationCenter defaultCenter] postNotificationName:@"PaymentFailed" object:nil];NSLog(@"购买失败，未通过验证！");}}];}
//监听购买结果
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transaction{for(SKPaymentTransaction *tran in transaction){switch (tran.transactionState) {case SKPaymentTransactionStatePurchased:{NSLog(@"交易完成");// 发送到苹果服务器验证凭证[self verifyPurchaseWithPaymentTransaction];[[SKPaymentQueue defaultQueue] finishTransaction:tran];}break;case SKPaymentTransactionStatePurchasing:NSLog(@"商品添加进列表");break;case SKPaymentTransactionStateRestored:{NSLog(@"已经购买过商品");[[SKPaymentQueue defaultQueue] finishTransaction:tran];}break;case SKPaymentTransactionStateFailed:{NSLog(@"交易失败");[[NSNotificationCenter defaultCenter] postNotificationName:@"PaymentFailed" object:nil];[[SKPaymentQueue defaultQueue] finishTransaction:tran];}break;default:break;}}
}//交易结束
- (void)completeTransaction:(SKPaymentTransaction *)transaction{NSLog(@"交易结束");[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
}- (void)dealloc{[[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
}@end

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