javascript - JSONP Ajax 语法

Question

我正在尝试使用 JSONP 端点提供的国家/地区代码来提醒我网页的访问者。但是，我似乎无法让这个工作!网络上的所有答案似乎都令人困惑!

从端点返回以下内容:

{
    "pcCartCt": 0,
    "pcCountryCode": "au",
    "pcCountrySite": "WWW",
    "pcExpDomCt": 0,
    "pcFirstName": "",
    "pcIsCdc": false,
    "pcIsDiscount": false,
    "pcIsGdEmployee": false,
    "pcIsTrusted": false,
    "pcLanguageCookie": "en-us",
    "pcModalData": "",
    "pcRepEmail": "",
    "pcRepExt": "",
    "pcRepName": "",
    "pcSelectedCurrFullDesc": "United States Dollar $ (Transactional)",
    "pcSelectedCurrType": "USD",
    "pcSetLanguageLogo": true,
    "pcShopperId": ""
}

为了让它工作，我首先需要指定“myprogid”的 prog_id 和一个回调函数。在回调中，我需要一条包含 pcCountryCode 的警报消息。

我该怎么做？

Answer 1

端点应返回:

myprogid({
    "pcCartCt": 0,
    "pcCountryCode": "au",
    "pcCountrySite": "WWW",
    "pcExpDomCt": 0,
    "pcFirstName": "",
    "pcIsCdc": false,
    "pcIsDiscount": false,
    "pcIsGdEmployee": false,
    "pcIsTrusted": false,
    "pcLanguageCookie": "en-us",
    "pcModalData": "",
    "pcRepEmail": "",
    "pcRepExt": "",
    "pcRepName": "",
    "pcSelectedCurrFullDesc": "United States Dollar $ (Transactional)",
    "pcSelectedCurrType": "USD",
    "pcSetLanguageLogo": true,
    "pcShopperId": ""
});

我不明白你关于解析多个参数的问题。 JSONP 仅需要一个特殊参数:callback=myprogid。该参数应用作响应开头的函数名称。