在 Swift 2.0 中从 iOS 应用程序上传图像到服务器

Posted 2023-02-24

【中文标题】在 Swift 2.0 中从 iOS 应用程序上传图像到服务器

【英文标题】：Uploading Image to server from iOS Application in Swift 2.0

【发布时间】：2015-10-07 14:34:19

【问题描述】：

我正在开发一个 ios 应用程序，我必须将图像上传到服务器，我正在使用 swift 2.0。 下面是代码：

var tempImage:UIImage = info[UIImagePickerControllerOriginalImage] as！ UIImage myImage.image = tempImage

    print(tempImage)

    print([info])

    myImage.image = info[UIImagePickerControllerOriginalImage] as? UIImage
    self.dismissViewControllerAnimated(true, completion: nil)
    var imageData = UIImagePNGRepresentation(tempImage)

    // converting in base64
    let base64 = imageData?.base64EncodedStringWithOptions(NSDataBase64EncodingOptions.Encoding64CharacterLineLength) as! AnyObject

    let url = NSURL(string: "www.google.com/myimage1/PNG")!

    let urlRequest = NSMutableURLRequest(URL: url)
    urlRequest.HTTPMethod = "POST"

    // Set the HTTP Body with the POST data
    let postDict = ["encodedImage": base64]

    urlRequest.HTTPBody = try! NSJSONSerialization.dataWithJSONObject(postDict , options: [])

    urlRequest.addValue("application/json", forHTTPHeaderField: "Content-Type")


    urlRequest.timeoutInterval = 600
    urlRequest.HTTPShouldHandleCookies = false
 //   urlRequest.setValue("application/json)", forHTTPHeaderField: "Content-Type")

    let task = NSURLSession.sharedSession().dataTaskWithRequest(urlRequest)
        
          data, response, error in

            if error != nil 
            print("error=\(error)")
            return
        

        print("response = \(response)")

        let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
        print("responseString = \(responseString)")
    
    task.resume()

但我还没有成功。我仍然收到以下错误响应。

error=Optional(Error Domain=NSURLErrorDomain Code=-1001 "请求 超时。” UserInfo=NSUnderlyingError=0x7fad5af61e20 错误 域=kCFErrorDomainCFNetwork 代码=-1001 "(null)" UserInfo=_kCFStreamErrorCodeKey=60, _kCFStreamErrorDomainKey=1, NSErrorFailingURLStringKey=www.google.com/myimage1/PNG, NSErrorFailingURLKey=http://www.google.com/myimage1/PNG, _kCFStreamErrorDomainKey=1, _kCFStreamErrorCodeKey=60, NSLocalizedDescription=请求超时。)

如果您已经在 swift 2.0 中的应用程序中将图像上传到服务器上，请帮帮我。

【参考方案1】：

你需要改变你的文件

info.plist

，并使用应用程序 TextEdit 添加此内容，或使用 xcode。

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
    </dict>
</dict>

来自 Xcode http://i.stack.imgur.com/tGsEK.png

，别忘了清理项目。 (cmd + shift + k)

【讨论】：

谢谢！！完美运行！

【参考方案2】：

func uploadImageOne()

    var imageData = UIImagePNGRepresentation(imageView.image)

    if imageData != nil
        var request = NSMutableURLRequest(URL: NSURL(string:"= Enter your image URL")!)
        var session = NSURLSession.sharedSession()

        request.HTTPMethod = "POST"

        var boundary = NSString(format: "---------------------------14737809831466499882746641449")
        var contentType = NSString(format: "multipart/form-data; boundary=%@",boundary)
      //  println("Content Type \(contentType)")
        request.addValue(contentType, forHTTPHeaderField: "Content-Type")

        var body = NSMutableData.alloc()

        // Title
         body.appendData(NSString(format: "\r\n--%@\r\n",boundary).dataUsingEncoding(NSUTF8StringEncoding)!)
        body.appendData(NSString(format:"Content-Disposition: form-data; name=\"title\"\r\n\r\n").dataUsingEncoding(NSUTF8StringEncoding)!)
        body.appendData("Hello World".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)!)

        // Image
        body.appendData(NSString(format: "\r\n--%@\r\n", boundary).dataUsingEncoding(NSUTF8StringEncoding)!)
        body.appendData(NSString(format:"Content-Disposition: form-data; name=\"profile_img\"; filename=\"img.jpg\"\\r\n").dataUsingEncoding(NSUTF8StringEncoding)!)
        body.appendData(NSString(format: "Content-Type: application/octet-stream\r\n\r\n").dataUsingEncoding(NSUTF8StringEncoding)!)
        body.appendData(imageData)
        body.appendData(NSString(format: "\r\n--%@\r\n", boundary).dataUsingEncoding(NSUTF8StringEncoding)!)



        request.HTTPBody = body


        var returnData = NSURLConnection.sendSynchronousRequest(request, returningResponse: nil, error: nil)

        var returnString = NSString(data: returnData!, encoding: NSUTF8StringEncoding)

        println("returnString \(returnString)")