json - 从 Swift 中的 HTTPCookie 读取 JSON 错误不起作用

Question

我正在尝试从 http cookie 中读取字符串序列化的 json 对象。字符串看起来像这样

"{\"status\": 400\054 \"code\": \"14040\"\054 \"links\": {\"self\": \"\"}\054 \"title\": \"Conflicting Email\"}"

因此其中有 unicode 实体，如:\054 这只是一个逗号 ,

当我尝试将字符串转换为这样的 json 对象时

if let data = cookieValue.data(using: .ascii) {
    do {
        let obj = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String : AnyObject]
        // print("Successfull: \(obj)")
    } catch let error as NSError {
        // print("Cannot convert data to json: \(data)\nError: \(error)")
    }
}

它返回一个错误提示:

Error: Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (Invalid escape sequence around character 17.) UserInfo=0x78e586c0 {NSDebugDescription=Invalid escape sequence around character 17.}

字符 17 是 \054 的位置。

我需要做什么才能将 unicode 实体转换为文本？

Answer 1

尝试

var str2 = str.replacingOccurrences(of: "\054", with: ",")

这对我有用，这是我用于测试的代码。

import Foundation

var str = "{\"status\": 400\054 \"code\": \"14040\"\054 \"links\": {\"self\": \"\"}\054 \"title\": \"Conflicting Email\"}"

var str2 = str.replacingOccurrences(of: "\054", with: ",")

let data = str2.data(using: String.Encoding.utf8, allowLossyConversion: false)!

do {
    let json = try JSONSerialization.jsonObject(with: data, options: []) as! [String: AnyObject]
    for (key, value) in json {
        print(key)
    }
} catch let error as NSError {
    print("Failed to load: \(error.localizedDescription)")
}