use*_*360 8 upload swift alamofire
我正在尝试使用Alamofire将图像上传到服务器,但我的代码不起作用.这是我的代码:
var parameters = ["image": "1.jpg"]
let image = UIImage(named: "1.jpg")
let imageData = UIImagePNGRepresentation(image)
let urlRequest = urlRequestWithComponents("http://tranthanhphongcntt.esy.es/task_manager/IOSFileUpload/", parameters: parameters, imageData: imageData)
Alamofire.upload(urlRequest.0, data: urlRequest.1)
.progress { (bytesWritten, totalBytesWritten, totalBytesExpectedToWrite) in
println("\(totalBytesWritten) / \(totalBytesExpectedToWrite)")
}
.responseJSON { (request, response, JSON, error) in
println("REQUEST \(request)")
println("RESPONSE \(response)")
println("JSON \(JSON)")
println("ERROR \(error)")
}
这是urlRequestWithComponents方法:
func urlRequestWithComponents(urlString:String, parameters:Dictionary<String, String>, imageData:NSData) -> (URLRequestConvertible, NSData) {
// create url request to send
var mutableURLRequest = NSMutableURLRequest(URL: NSURL(string: urlString)!)
mutableURLRequest.HTTPMethod = Alamofire.Method.POST.rawValue
let boundaryConstant = "myRandomBoundary12345";
let contentType = "multipart/form-data;boundary="+boundaryConstant
mutableURLRequest.setValue(contentType, forHTTPHeaderField: "Content-Type")
// create upload data to send
let uploadData = NSMutableData()
// add image
uploadData.appendData("\r\n--\(boundaryConstant)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
uploadData.appendData("Content-Disposition: form-data; name=\"file\"; filename=\"file.png\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
uploadData.appendData("Content-Type: image/png\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
uploadData.appendData(imageData)
// add parameters
for (key, value) in parameters {
uploadData.appendData("\r\n--\(boundaryConstant)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
uploadData.appendData("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n\(value)".dataUsingEncoding(NSUTF8StringEncoding)!)
}
uploadData.appendData("\r\n--\(boundaryConstant)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
// return URLRequestConvertible and NSData
return (Alamofire.ParameterEncoding.URL.encode(mutableURLRequest, parameters: nil).0, uploadData)
}
这就是我在控制台中得到的:
REQUEST { URL: http://tranthanhphongcntt.esy.es/task_manager/IOSFileUpload/ } RESPONSE Optional( { URL: http://tranthanhphongcntt.esy.es/task_manager/IOSFileUpload/ } { status code: 200, headers { "Accept-Ranges" = bytes; Connection = close; "Content-Length" = 345; "Content-Type" = "text/html"; Date = "Tue, 25 Aug 2015 10:52:01 GMT"; "Last-Modified" = "Mon, 24 Aug 2015 03:54:55 GMT"; Server = Apache; } }) JSON nil ERROR Optional(Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (Invalid value around character 0.) UserInfo=0x7f8c68c1c130 {NSDebugDescription=Invalid value around character 0.})
my PHP content:
<? php
echo $_FILES['image']['name'].
'<br/>';
//ini_set('upload_max_filesize', '10M');
//ini_set('post_max_size', '10M');
//ini_set('max_input_time', 300);
//ini_set('max_execution_time', 300);
$target_path = "uploads/";
$target_path = $target_path.basename($_FILES['image']['name']);
try {
//throw exception if can't move the file
if (!move_uploaded_file($_FILES['image']['tmp_name'], $target_path)) {
throw new Exception('Could not move file');
}
echo "The file ".basename($_FILES['image']['name']).
" has been uploaded";
} catch (Exception $e) {
die('File did not upload: '.$e - > getMessage());
} ?>我的代码遵循了这个建议:使用Alamofire上传带参数的文件 .请帮助我,谢谢
虽然Rob的答案是正确的,但这是Swift 2.0版本,上传进度更新.
只需复制并粘贴以下代码,更改上传网址,然后添加参数即可.应该像魅力一样工作.
PS:MRProgress是一个令人敬畏的进度更新库!
let apiToken = "ABCDE"
Alamofire.upload(
.POST,
"http://sample.com/api/upload",
multipartFormData: { multipartFormData in
multipartFormData.appendBodyPart(data: imageData, name: "yourParamName", fileName: "imageFileName.jpg", mimeType: "image/jpeg")
multipartFormData.appendBodyPart(data: apiToken.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"api_token")
multipartFormData.appendBodyPart(data: otherBodyParamValue.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"otherBodyParamName")
},
encodingCompletion: { encodingResult in
switch encodingResult {
case .Success(let upload, _, _):
upload.progress { (bytesWritten, totalBytesWritten, totalBytesExpectedToWrite) in
print("Uploading Avatar \(totalBytesWritten) / \(totalBytesExpectedToWrite)")
dispatch_async(dispatch_get_main_queue(),{
/**
* Update UI Thread about the progress
*/
})
}
upload.responseJSON { (JSON) in
dispatch_async(dispatch_get_main_queue(),{
//Show Alert in UI
print("Avatar uploaded");
})
}
case .Failure(let encodingError):
//Show Alert in UI
print("Avatar uploaded");
}
}
);
您的错误告诉您响应不是有效的 JSON。您正在调用responseJSON，表明您正在等待 JSON 响应，但您的服务器代码未生成 JSON。所以有两种解决方案：
我建议更改 PHP 代码以生成 JSON 响应。
例如，如果成功：
echo json_encode(array("success" => true,
"filename" => basename($_FILES['image']['name']));
或者，如果不成功，也许：
echo json_encode(array("success" => false,
"error_code" => 42,
"error_msg" => 'File did not upload: '.$e - > getMessage());
echo显然，如果要返回 JSON，则必须删除 PHP 中的无关行，但希望这说明了该模式。但这将生成一个响应，您可以使用 Alamofire 进行解析responseJSON（或使用NSJSONSerialization）。
或者，您可以将 Alamofire 代码更改为不期望 JSON（例如 callresponse而不是responseJSON），但解析响应会变得更加困难。
作为一个无关紧要的小问题，我个人建议不要手动构建该请求，而是让 Alamofire 为您做这件事。这是自述文件中的示例：
Alamofire.upload(
multipartFormData: { multipartFormData in
multipartFormData.append(unicornImageURL, withName: "unicorn")
multipartFormData.append(rainbowImageURL, withName: "rainbow")
},
to: "https://httpbin.org/post",
encodingCompletion: { encodingResult in
switch encodingResult {
case .success(let upload, _, _):
upload.responseJSON { response in
debugPrint(response)
}
case .failure(let encodingError):
print(encodingError)
}
}
)
这是针对 Swift 3 和 Alamofire 4 的。请参阅此问题的先前版本的修订历史记录。