获取URL参数的值 [英] Get the value of URL Parameters

问题描述

我正在尝试使用Swift从URL获取参数.假设我有以下网址:

I am trying to get the parameters from a URL using Swift. Let's say I have the following URL:

http://mysite3994.com?test1=blah&test2=blahblah

如何获取test1和test2的值?

How can I get the values of test1 and test2?

推荐答案

您可以使用以下代码获取参数

You can use the belowCode to get the param

func getQueryStringParameter(url: String, param: String) -> String? {
  guard let url = URLComponents(string: url) else { return nil }
  return url.queryItems?.first(where: { $0.name == param })?.value
}

调用类似let test1 = getQueryStringParameter(url, param: "test1")

其他带有扩展名的方法:

extension URL {
    public var queryParameters: [String: String]? {
        guard
            let components = URLComponents(url: self, resolvingAgainstBaseURL: true),
            let queryItems = components.queryItems else { return nil }
        return queryItems.reduce(into: [String: String]()) { (result, item) in
            result[item.name] = item.value
        }
    }
}

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