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Alamofire 4从抛出类型为“(\uthrows->)”的函数到非抛出函数类型(DataResponse<Any>)—>Void”的转换无效

  •  3
  • Qadir Hussain  · 技术社区  · 6 年前

    我刚刚运行了pod更新命令。在我的Alamofire请求中得到这个错误 .responseJSON { response in 封锁。

    从类型为“((throws->)”的引发函数进行的转换无效 到非抛出函数类型'(DataResponse)->Void'

    这是截图

    error screenshot

    更新1

    这是我的密码

    Alamofire.request(getPublicKeyUrl!, method: .get, parameters: nil, encoding: JSONEncoding.default)
                                .downloadProgress(queue: DispatchQueue.global(qos: .utility)) { progress in
                                    print("Progress: \(progress.fractionCompleted)")
                                }
                                .validate { request, response, data in
                                    // Custom evaluation closure now includes data (allows you to parse data to dig out error messages if necessary)
                                    //print("response", response);
                                    return .success
                                }
                                .responseJSON { response in
                                    //debugPrint(response)
                                    //print("JSON req", response)
    
                                    if((response.result.value) != nil) {
    
                                        let swiftyJSON = JSON(response.result.value!)
    
                                        print(swiftyJSON)
    
                                        let Code = swiftyJSON["LL"]["Code"].stringValue
                                        print("response Code", Code);
                                        if (Code == "200") {
    
                                            // get key
                                            self._publicKey = swiftyJSON["LL"]["value"].stringValue
                                            print("publicKey", self._publicKey);
    
                                            var request = URLRequest(url: (URL(string:"ws://\(self._ip)/ws/rfc6455"))!)
                                            print("Request", String(describing: request.url))
                                            request.setValue("websocket", forHTTPHeaderField: "Upgrade")
                                            request.setValue("Upgrade", forHTTPHeaderField: "Connection")
                                            request.setValue("remotecontrol", forHTTPHeaderField: "Sec-WebSocket-Protocol")
                                            request.setValue(self._hash as String, forHTTPHeaderField: "Sec-WebSocket-Key")
                                            self.socket = WebSocket(request: request)
    
    //                                        self.commandInPending.insert("authenticate/\(self._hash)", at: 0)
    //                                        self.socket.delegate = self
    //                                        self.socket.connect()
    
                                            // check AES encryption
                                            //let message     = "Don´t try to read this text. Top Secret Stuff"
                                            //let messageData = message.data(using:String.Encoding.utf8)!
                                            let keyData     = "12345678901234567890123456789012".data(using:String.Encoding.utf8)!
                                            let ivData      = "abcdefghijklmnop".data(using:String.Encoding.utf8)!
    
                                            print("keyData", keyData);
                                            print("ivData", ivData);
    
                                            let key = keyData.map{ String(format:"%02x", $0) }.joined()
                                            let iv = ivData.map{ String(format:"%02x", $0) }.joined()
    
                                            print("keyHex", key);
                                            print("ivData", iv);
    
                                            // let session_key =
                                            let keyAndiv = ("\(key):\(iv)") // self._publicKey
                                            print("keyAndiv", keyAndiv);
    
    //                                        let str = "Clear Text"
                                            let clear = try ClearMessage(string: keyAndiv, using: .utf8)
                                            let encrypted = try clear.encrypted(with: publicKey, padding: .PKCS1)
    
                                            let data = encrypted.data
                                            let base64String = encrypted.base64Encoded
                                            print ("data", data);
                                            print ("base64String", base64String);
    
    
                                            //let encryptedData = AppUtils.testCrypt(data:messageData,   keyData:keyData, ivData:ivData, operation:kCCEncrypt)
                                            //let decryptedData = AppUtils.testCrypt(data:encryptedData, keyData:keyData, ivData:ivData, operation:kCCDecrypt)
                                            //let decrypted     = String(bytes:decryptedData, encoding:String.Encoding.utf8)!
    
                                            //print("message", message);
                                            //print("decrypted", decrypted);
    
                                        }
                                    }
                            }
    

    有线索吗?

    1 回复  |  直到 6 年前
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  •  1
  •   vadian    6 年前

    发生错误的原因是您没有处理 throw ing功能。

    添加 do - catch block

    do {
         let clear = try ClearMessage(string: keyAndiv, using: .utf8)
         let encrypted = try clear.encrypted(with: publicKey, padding: .PKCS1)
    
         let data = encrypted.data
         let base64String = encrypted.base64Encoded
         print ("data", data);
         print ("base64String", base64String)
    } catch { print(error) }
    

    这是斯威夫特,你不需要括号 if 条件和尾随分号

    if response.result.value != nil { ...
    

    或者更好

    guard let result = response.result.value else { return }
    let swiftyJSON = JSON(result)