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arrays - Swift JSON“POST”请求数据数组

问题描述

我无法从数据输出中删除数组，尝试使用从数据中获得的引号数量定义一个结构并尝试输入它，但我不能，因为我必须从 JSON 响应中删除数组括号第一的。卡在这里一段时间了，第一次使用 JSON POST 类型。

if let requestUrl = url {
            // Prepare URL Request Object
            var request = URLRequest(url: requestUrl)
            request.httpMethod = "POST"
            // HTTP Request Parameters which will be sent in HTTP Request Body
            let postString = ["freq": freqId]
            // Set HTTP Request Body
            request.httpBody = try? JSONSerialization.data(withJSONObject: postString, options: [] );
            // Perform HTTP Request
            let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
                // Check for Error
                if let error = error {
                    self.delegate?.didGetError(error: error)
                    return
                }
                // Convert HTTP Response Data to a String
                if let data = data, let dataString = String(data: data, encoding: .utf8) {
                    print(dataString)
                    let quotes = DataModel(quotes: dataString)
                    self.delegate?.didGetData(data: quotes)
                }
            }
            task.resume()
        }
        else {
            fatalError()
        }

回复 ：

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标签： arraysjsonswiftpoststruct

解决方案

看起来响应是一个数组而不是一个字符串，所以将您的处理更改data为

guard let data = data else {
    //error handling...
    return
}

do {
    if let array = try JSONSerialization.jsonObject(with: data) as? [String] {
        let quotes = DataModel(quotes: array)
        self.delegate?.didGetData(data: quotes)
    }
} catch {
    print(error)
    //error handling...
}

这假设DataModel可以使用数组进行初始化，如果不是，您需要先执行以下操作以将数组的元素合并为字符串

let string = array.joined(separator: " ")

查看屏幕截图，我怀疑这并不容易，但处理数组内容的最佳方法超出了这个问题

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