本人项目是早教类项目，用到了内购的功能，记录一下，用到的是 非续订订阅 类型的内购。
注意：1，审核的通过，需要在客户端或者server进行双重验证，不然迭代版本的时候会被拒。2，你还要上传内购的具体位置在APP审核信息的附件里面，即便你上传了，审核人员还是找不到还是被拒，那么你只能回复他的邮件，需要注意的是回复邮件上传的附件的文件不能包含中文，如果你的文件包含了中文就一直提示服务器错误，上传不上去。
验证操作让后台去验证，因为客户端毕竟没后台验证的好，防止别人刷单，为什么要做product_id商品id，bundle_id包名，transaction_id订单号，因为 客户端传递过来的 凭证，是不可信的，有可能是别人篡改后的结果。比如，他们有个自己的内购，我们把这个凭证发到苹果是可以拿到返回结果的，但是 product_id，bundle_id没办法一样。
"transaction_id": "1000000460004095" 一定要进行去重验证，一个订单号只能加一次款
"bundle_id": "com.rtjk.xshl" 当前的产品的包名，一定要验证返回的包名和此包名要一致
"product_id": "6hongliao" 对应商品品id，自己做一个金额的映射就行，对应到具体的金额，建议命名要规则
为保证审核的通过，需要在客户端或者server进行双重验证，即，先以线上交易验证地址进行验证，如果苹果正式验证服务器的返回验证码code为21007，则再一次连接沙盒测试服务器进行验证即可。在应用提审时，苹果IAP提审验证时是在沙盒环境的进行的，即：苹果在审核App时，只会在sandbox环境购买，其产生的购买凭证，也只能连接苹果的测试验证服务器，如果没有做双验证，需要特别注意此问题，否则会被拒。
苹果人员审核的时候，是用的沙箱环境，但是如果你是迭代版本，苹果审核的时候会查看你是否进行认证没有，如果没有认证会被拒。
基本上所有的 操作都可以再前端完成操作，包括对支付凭证的验证，但是如果在客户端验证凭证可能存在被篡改的危险，
服务器去重验证和加款，是建立在 用户已经在前端支付成功，然后由ios会得到一个字节流，然后 base64后转给 后台。
后台通过这个字符串 去请求苹果的服务器，然后得到一个json字符串去给用户加款，其中注意事项为
//沙箱static final String testUrl = "https://sandbox.itunes.apple.com/verifyReceipt";
//正式 static final String product = "https://buy.itunes.apple.com/verifyReceipt";
请求苹果地址 返回的 内容为
conten-type = application/json
请求的苹果的内容为String param = "{\"receipt-data\":\""+客户端返回的base64+"\"}";
{
environment = Sandbox; //沙河环境 Sandbox
receipt = {
"adam_id" = 0;
"app_item_id" = 0;
"application_version" = 25;//项目版本号
"bundle_id" = "lianmeng.com"; //项目bundle_id 一定要验证返回的包名和此包名要一致
"download_id" = 0;
"in_app" = (
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-11 06:19:22 Etc/GMT";
"original_purchase_date_ms" = 1576045162000;
"original_purchase_date_pst" = "2019-12-10 22:19:22 America/Los_Angeles";
"original_transaction_id" = 1000000603451122;
"product_id" = "lianmeng_kechengnianka";//对应产品id，自己做一个金额的映射就行，对应到具体的金额，建议命名要规则
"purchase_date" = "2019-12-11 06:19:22 Etc/GMT";
"purchase_date_ms" = 1576045162000;
"purchase_date_pst" = "2019-12-10 22:19:22 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000603451122;//一定要进行去重验证，一个订单号只能加一次款
},
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-11 06:19:59 Etc/GMT";
"original_purchase_date_ms" = 1576045199000;
"original_purchase_date_pst" = "2019-12-10 22:19:59 America/Los_Angeles";
"original_transaction_id" = 1000000603451312;
"product_id" = "lianmeng_kechengnianka";
"purchase_date" = "2019-12-11 06:19:59 Etc/GMT";
"purchase_date_ms" = 1576045199000;
"purchase_date_pst" = "2019-12-10 22:19:59 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000603451312;
},
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-11 08:13:59 Etc/GMT";
"original_purchase_date_ms" = 1576052039000;
"original_purchase_date_pst" = "2019-12-11 00:13:59 America/Los_Angeles";
"original_transaction_id" = 1000000603500479;
"product_id" = "lianmeng_kechengnianka";
"purchase_date" = "2019-12-11 08:13:59 Etc/GMT";
"purchase_date_ms" = 1576052039000;
"purchase_date_pst" = "2019-12-11 00:13:59 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000603500479;
},
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-11 06:21:21 Etc/GMT";
"original_purchase_date_ms" = 1576045281000;
"original_purchase_date_pst" = "2019-12-10 22:21:21 America/Los_Angeles";
"original_transaction_id" = 1000000603451541;
"product_id" = "lianmeng_kechengbanianka";
"purchase_date" = "2019-12-11 06:21:21 Etc/GMT";
"purchase_date_ms" = 1576045281000;
"purchase_date_pst" = "2019-12-10 22:21:21 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000603451541;
},
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-11 06:22:22 Etc/GMT";
"original_purchase_date_ms" = 1576045342000;
"original_purchase_date_pst" = "2019-12-10 22:22:22 America/Los_Angeles";
"original_transaction_id" = 1000000603451660;
"product_id" = "lianmeng_kechengnianka";
"purchase_date" = "2019-12-11 06:22:22 Etc/GMT";
"purchase_date_ms" = 1576045342000;
"purchase_date_pst" = "2019-12-10 22:22:22 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000603451660;
},
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-11 05:59:34 Etc/GMT";
"original_purchase_date_ms" = 1576043974000;
"original_purchase_date_pst" = "2019-12-10 21:59:34 America/Los_Angeles";
"original_transaction_id" = 1000000603446070;
"product_id" = "lianmeng_kechengchengzhangka";
"purchase_date" = "2019-12-11 05:59:34 Etc/GMT";
"purchase_date_ms" = 1576043974000;
"purchase_date_pst" = "2019-12-10 21:59:34 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000603446070;
},
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-11 06:17:40 Etc/GMT";
"original_purchase_date_ms" = 1576045060000;
"original_purchase_date_pst" = "2019-12-10 22:17:40 America/Los_Angeles";
"original_transaction_id" = 1000000603450733;
"product_id" = "lianmeng_kechengnianka";
"purchase_date" = "2019-12-11 06:17:40 Etc/GMT";
"purchase_date_ms" = 1576045060000;
"purchase_date_pst" = "2019-12-10 22:17:40 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000603450733;
},
{
"is_trial_period" = false;
"original_purchase_date" = "2019-12-13 01:35:30 Etc/GMT";
"original_purchase_date_ms" = 1576200930000;
"original_purchase_date_pst" = "2019-12-12 17:35:30 America/Los_Angeles";
"original_transaction_id" = 1000000604337656;
"product_id" = "lianmeng_kechengnianka";
"purchase_date" = "2019-12-13 01:35:30 Etc/GMT";
"purchase_date_ms" = 1576200930000;
"purchase_date_pst" = "2019-12-12 17:35:30 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000604337656;//一定要进行去重验证，一个订单号只能加一次款
}
);
"original_application_version" = "1.0";
"original_purchase_date" = "2013-08-01 07:00:00 Etc/GMT";
"original_purchase_date_ms" = 1375340400000;
"original_purchase_date_pst" = "2013-08-01 00:00:00 America/Los_Angeles";
"receipt_creation_date" = "2019-12-13 07:21:06 Etc/GMT";
"receipt_creation_date_ms" = 1576221666000;
"receipt_creation_date_pst" = "2019-12-12 23:21:06 America/Los_Angeles";
"receipt_type" = ProductionSandbox;
"request_date" = "2019-12-13 07:21:32 Etc/GMT";
"request_date_ms" = 1576221692466;
"request_date_pst" = "2019-12-12 23:21:32 America/Los_Angeles";
"version_external_identifier" = 0;
};
status = 0;//表示当前请求返回正常
}
耗型项目：对于消耗型App内购买项目，用户每次下载时都必须进行购买。一次性服务通常属于消耗型项目，例如钓鱼App 中的鱼饵。
非消耗型项目：对于非消耗型App内购买项目，用户仅需要购买一次。不会过期或随使用而减少的服务通常为非消耗型项目，例如游戏App 的新跑道。
自动续订订阅：通过自动续订订阅，用户可以购买指定时间期限内的更新和动态内容。除非用户取消选择，否则订阅（例如杂志订阅等）会自动续订。
免费订阅：通过免费订阅，开发者可以将免费订阅内容放入“报刊杂志”。用户注册免费订阅后，该订阅内容将会出现在与该用户Apple ID 关联的所有设备上。请注意，免费订阅不会过期，并且仅在支持报刊杂志功能的 App 中提供。
非续订订阅：非续订订阅允许有时限性的营销服务。对于 App 内购买项目中的限时访问内容，就需使用非续订订阅。例如，导航App 中语音导航功能的一周订阅，或者年度订阅已存档的视频或音频的在线目录。
后面是一些别人的写的内购地址:
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