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在不使用Alamofire的情况下，如何在Swift 4中以相同的键名上传数组中的多个图像

• 问答

检出用于上传单个图像的代码，但无法在同一键下以阵列的形式上传多个图像。

在以下代码中， 当我将一幅图像发送到服务器时，它工作完美。 ->我想在不使用alamofire或其他第三方库的情况下找到数组中多个图像的答案。

      func imageUploadRequest(IMAGE_ARRAY: [UIImage],uploadUrl: NSURL) {

        myloader.showLoader(controller: self)
      let param = ["title":"ds","category_id":"5","description":"gdfjghjdsfgksd","user_id":"66","color":"red"]

        let request = NSMutableURLRequest(url:uploadUrl as URL)
        request.httpMethod = "POST"
        let boundary = generateBoundaryString()
        request.setvalue("multipart/form-data; boundary=\(boundary)",forHTTPHeaderField: "Content-Type")

        //let imageData = uiimagejpegrepresentation(imageView.imageOrientation,0.1)
        for item in IMAGE_ARRAY
        {
            let imageData = item.jpegData(compressionQuality: 0.01)
            if(imageData==nil)  { return; }

            request.httpBody = createBodyWithParameters(parameters: param as [String : Any],filePathKey: "files[]",cv : imageData! as NSData,boundary: boundary) as Data
        }

        // myactivityIndicator.startAnimating();

        let task =  URLSession.shared.dataTask(with: request as URLRequest,completionHandler: {
                                                (data,response,error) -> Void in
                                                if let data = data {
                                                    DispatchQueue.main.async { // Update UI
                                                        self.myloader.removeLoader(controller: self)
                                                        let decoder = JSONDecoder()

                                                        let obj = try! decoder.decode(GetResponse_Otp.self,from: data)


                                                    }
                                                }
        })
        task.resume()
    }

    func createBodyWithParameters(parameters: [String: Any]?,filePathKey: String?,cv: NSData,boundary: String) -> NSData {
        let body = NSMutableData();

        if parameters != nil {
            for (key,value) in parameters! {
                body.appendString("--\(boundary)\r\n")
                body.appendString("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
                body.appendString("\(value)\r\n")
            }
        }

        let filename = "\(Date().timeIntervalSince1970).jpeg"
        let mimetype = "image/png"

        body.appendString("--\(boundary)\r\n")
        body.appendString("Content-Disposition: form-data; name=\"\(filePathKey!)\"; filename=\"\(filename)\"\r\n")
        body.appendString("Content-Type: \(mimetype)\r\n\r\n")
        body.append(cv as Data)
        body.appendString("\r\n")

        body.appendString("--\(boundary)--\r\n")

        return body
    }

    func generateBoundaryString() -> String {
        return "Boundary-\(NSUUID().uuidString)"
    }
    // extension for impage uploading
}
QQ5211982511 回答：在不使用Alamofire的情况下，如何在Swift 4中以相同的键名上传数组中的多个图像

您需要将密钥名称更改为KEY_NAME []，并在密钥中添加数组[]，并确保每次文件名都不相同，否则您也可以尝试以下操作：

(Date().timeIntervalSince1970).jpeg

确保每次使用的名称都不相同。

, 
func imageUploadRequest(ARRAY_OF_IMAGES: [ANY],uploadUrl: NSURL) {

     myloader.showLoader(controller: self)
     let param = ["user_id":fetchString(key: "userId"),"career_level":UnwarppingValue(value: btnCarrer.title(for: .normal)),"education":UnwarppingValue(value: btnEducation.title(for: .normal)),"cur_location":txtFldLocation.text!,"cur_position":txtFldCurrentPosition.text!,"cur_employee":txtFldCurrentEmployee.text!,"experience": UnwarppingValue(value: btnExperience.title(for: .normal)),"industry":UnwarppingValue(value: btnIndustry.title(for: .normal))] as [String : Any]

     let request = NSMutableURLRequest(url:uploadUrl as URL)
     request.httpMethod = "POST"
     let boundary = generateBoundaryString()
     request.setValue("multipart/form-data; boundary=\(boundary)",forHTTPHeaderField: "Content-Type")

     //let imageData = UIImageJPEGRepresentation(imageView.imageOrientation,0.1)
     for item in IMAGE_ARRAY
     {
     let imageData = item.jpegData(compressionQuality: 0.01)
     if(imageData==nil)  { return; }

     request.httpBody = createBodyWithParameters(parameters: param as [String : Any],filePathKey: "KEY_NAME[]",cv : imageData! as NSData,boundary: boundary) as Data
     }

     // myActivityIndicator.startAnimating();

     let task =  URLSession.shared.dataTask(with: request as URLRequest,completionHandler: {
                                                (data,response,error) -> Void in
             if let data = data {
                DispatchQueue.main.async { // Update UI
                     self.myloader.removeLoader(controller: self)
                     let decoder = JSONDecoder()

                     let obj = try! decoder.decode(GetResponse_ProfileOverViewDetails.self,from: data)

                     guard obj.response?.result == "1" else{
                        showToast(message: obj.response?.msg ?? "Something Went Wrong",vc: self,normalColor: false)
                        return
                     }

                     if let userPic = obj.response?.data?[0].pic {
                           saveStringInDefault(value: userPic,key: "userPic")
                     }else {
                         saveStringInDefault(value: "",key: "userPic")
                     }
                  showToast(message: obj.response?.msg ?? "Something Went Wrong",normalColor: false)
             }
         }
       })task.resume()
    }

    func createBodyWithParameters(parameters: [String: Any]?,filePathKey: String?,cv: NSData,boundary: String) -> NSData {
        let body = NSMutableData();

        if parameters != nil {
            for (key,value) in parameters! {
                body.appendString(string: "--\(boundary)\r\n")
                body.appendString(string: "Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
                body.appendString(string: "\(value)\r\n")
            }
        }

        let filename = HERE->(Date().timeIntervalSince1970).jpeg
        let mimetype = "image/png"

        body.appendString(string: "--\(boundary)\r\n")
        body.appendString(string: "Content-Disposition: form-data; name=\"\(filePathKey!)\"; filename=\"\(filename)\"\r\n")
        body.appendString(string: "Content-Type: \(mimetype)\r\n\r\n")
        body.append(cv as Data)
        body.appendString(string: "\r\n")

        body.appendString(string: "--\(boundary)--\r\n")

        return body
    }

    func generateBoundaryString() -> String {
        return "Boundary-\(NSUUID().uuidString)"
    }
    // extension for impage uploading
}

检查我是否编辑大写字母的代码。

iosswiftswift4
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