苹果内购返回错误代码描述

Status Code     Description
21000     The App Store could not read the JSON object you provided.
21002     The data in the receipt-data property was malformed or missing.
21003     The receipt could not be authenticated.
21004     The shared secret you provided does not match the shared secret on file for your account.Only returned for iOS 6 style transaction receipts for auto-renewable subscriptions.
21005     The receipt server is not currently available.
21006     This receipt is valid but the subscription has expired. When this status code is returned to your server, the receipt data is also decoded and returned as part of the response.Only returned for iOS 6 style transaction receipts for auto-renewable subscriptions.
21007     This receipt is from the test environment, but it was sent to the production environment for verification. Send it to the test environment instead.
21008     This receipt is from the production environment, but it was sent to the test environment for verification. Send it to the production environment instead.