如何添加 Alamofire URL 参数 [英] How to add Alamofire URL parameters

问题描述

我有一个使用 Postman 传入 URL 参数的工作场景.现在，当我尝试在 Swift 中通过 Alamofire 执行此操作时，它不起作用.

I have a working scenario using Postman passing in URL parameters. Now when I try to do it via Alamofire in Swift, it does not work.

您将如何在 Alamofire 中创建此网址?http://localhost:8080/?test=123

How would you create this url in Alamofire? http://localhost:8080/?test=123

    _url = "http://localhost:8080/"
    let parameters: Parameters = [
        "test": "123"
        ]

    Alamofire.request(_url,
                      method: .post,
                      parameters: parameters,
                      encoding: URLEncoding.default,
                      headers: headers

推荐答案

问题在于您正在使用 URLEncoding.default.Alamofire 根据您使用的 HTTP method 以不同方式解释 URLEncoding.default.

The problem is that you're using URLEncoding.default. Alamofire interprets URLEncoding.default differently depending on the HTTP method you're using.

对于 GET、HEAD 和 DELETE 请求，URLEncoding.default 将参数编码为查询字符串并将其添加到 URL，但对于任何其他方法(例如 POST)，参数会被编码为查询字符串并作为 HTTP 请求的正文发送.

For GET, HEAD, and DELETE requests, URLEncoding.default encodes the parameters as a query string and adds it to the URL, but for any other method (such as POST) the parameters get encoded as a query string and sent as the body of the HTTP request.

为了在 POST 请求中使用查询字符串，您需要将 encoding 参数更改为 URLEncoding(destination: .queryString).

In order to use a query string in a POST request, you need to change your encoding argument to URLEncoding(destination: .queryString).

您可以在此处查看有关 Alamofire 如何处理请求参数的更多详细信息.

You can see more details about how Alamofire handles request parameters here.

您的代码应如下所示:

   _url = "http://localhost:8080/"
    let parameters: Parameters = [
        "test": "123"
        ]

    Alamofire.request(_url,
                      method: .post,
                      parameters: parameters,
                      encoding: URLEncoding(destination: .queryString),
                      headers: headers)

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