iOS Swift Alamofire 缓存策略

Question

在 Alamofire 版本 3 中，我使用 NSURLRequest.CachePolicy.returnCacheDataDontLoad 进行请求缓存

let URLRequest = NSMutableURLRequest(url: URL(string: url)!)
    URLRequest.cachePolicy = NSURLRequest.CachePolicy.returnCacheDataDontLoad
    Alamofire.request(URLRequest){...}

但是我如何在 Alamofire 4 和 swift 3 中使用 cachePolicy？

谢谢

Answer 1

我到处搜索，结果是这样的:

    let TheURL = DEFAULT_APP_URL + "api/getList?Id="+ID
    let urlString = NSURL(string: TheURL)
    var mutableURLRequest = URLRequest(url: urlString! as URL)
    mutableURLRequest.httpMethod = "GET"
    mutableURLRequest.setValue("application/json", forHTTPHeaderField: "Content-Type")
    mutableURLRequest.cachePolicy = NSURLRequest.CachePolicy.returnCacheDataElseLoad


    Alamofire.request(mutableURLRequest)
        .responseJSON
       {....}