使用Alamofire上传带有参数的文件
使用Alamofire上传带有参数的文件
提问于 2014-09-30 13:15:34
我正在尝试使用Alamofire上传一个文件。当使用文件(NSUrl)时，上传很好，但是，我似乎不知道如何使用NSData选项？
这就是我要做的测试：
var url:NSURL = NSURL.URLWithString("http://localhost:8080/bike.jpeg")
var err: NSError?
var imageData :NSData = NSData.dataWithContentsOfURL(url,options: NSDataReadingOptions.DataReadingMappedIfSafe, error: &err)
Alamofire.upload(.POST, "http://localhost:8080/rest/service/upload/test.png", imageData)
.progress { (bytesWritten, totalBytesWritten, totalBytesExpectedToWrite) in
println(totalBytesWritten)
}
.responseJSON { (request, response, JSON, error) in
println(request)
println(response)
println(JSON)
}我有状态码415吗？
另外，如何在上传中发送额外的params？
谢谢
编辑
我没有设置正确的内容-类型：
var manager = Manager.sharedInstance
manager.session.configuration.HTTPAdditionalHeaders = ["Content-Type": "application/octet-stream"]
let imageData: NSMutableData = NSMutableData.dataWithData(UIImageJPEGRepresentation(imageTest.image, 30));
Alamofire.upload(.POST, "http://localhost:8080/rest/service/upload?attachmentName=file.jpg", imageData)
.progress { (bytesWritten, totalBytesWritten, totalBytesExpectedToWrite) in
println(totalBytesWritten)
}
.responseString { (request, response, JSON, error) in
println(request)
println(response)
println(JSON)
}仍然不知道如何在上传的同时发送额外的参数。
回答 11
Stack Overflow用户
发布于 2014-11-05 00:43:00
下面是一个简单的函数，它需要目标上传url、参数和imageData，并返回Alamofire.upload上传带有参数的图像所需的URLRequestConvertible和NSData。
// this function creates the required URLRequestConvertible and NSData we need to use Alamofire.upload
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)
} 下面是如何使用它的示例(请参见创建和发送请求)：
// init paramters Dictionary
var parameters = [
"task": "task",
"variable1": "var"
]
// add addtionial parameters
parameters["userId"] = "27"
parameters["body"] = "This is the body text."
// example image data
let image = UIImage(named: "177143.jpg")
let imageData = UIImagePNGRepresentation(image)
// CREATE AND SEND REQUEST ----------
let urlRequest = urlRequestWithComponents("http://example.com/uploadText/", parameters: parameters, imageData: imageData)
Alamofire.upload(urlRequest.0, 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)")
} 如果您需要目标url的php文件(在同一个目录中有一个“上载”文件夹)：
// get picture variables
$file = $_FILES['file']['tmp_name'];
$fileName = $_FILES['file']['name'];
$fileType = $_FILES['file']['type'];
// check extension
$allowedExts = array("jpg", "jpeg", "png");
$rootName = reset(explode(".", $fileName));
$extension = end(explode(".", $fileName));
// create new file name
$time = time();
$newName = $rootName.$time.'.'.$extension;
// temporarily save file
$moved = move_uploaded_file($_FILES["file"]["tmp_name"], "uploads/".$newName );
if ($moved) $path = "uploads/".$newName;
$body = $_POST['body'];
$userId = $_POST['userId'];
$time = time();
if ($moved) {
$fullUrl = "http://antiblank.com/testPhotoUpload/".$path;
$arrayToSend = array('status'=>'success','time'=>$time,'body'=>$body,'userId'=>$userId, "imageURL"=>$fullUrl);
} else {
$arrayToSend = array('status'=>'FAILED','time'=>$time,'body'=>$body,'userId'=>$userId);
}
header('Content-Type:application/json');
echo json_encode($arrayToSend);Stack Overflow用户
发布于 2016-01-23 09:19:46
通过Swift 3&4和Alamofire 4上传带有参数和自定义标题的照片/文件
// import Alamofire
func uploadWithAlamofire() {
let image = UIImage(named: "bodrum")!
// define parameters
let parameters = [
"hometown": "yalikavak",
"living": "istanbul"
]
Alamofire.upload(multipartFormData: { multipartFormData in
if let imageData = UIImageJPEGRepresentation(image, 1) {
multipartFormData.append(imageData, withName: "file", fileName: "file.png", mimeType: "image/png")
}
for (key, value) in parameters {
multipartFormData.append((value?.data(using: .utf8))!, withName: key)
}}, to: "upload_url", method: .post, headers: ["Authorization": "auth_token"],
encodingCompletion: { encodingResult in
switch encodingResult {
case .success(let upload, _, _):
upload.response { [weak self] response in
guard let strongSelf = self else {
return
}
debugPrint(response)
}
case .failure(let encodingError):
print("error:\(encodingError)")
}
})
}通过Swift 2和Alamofire 3
// import Alamofire
func uploadWithAlamofire() {
let image = UIImage(named: "myImage")!
// define parameters
let parameters = [
"hometown": "yalikavak",
"living": "istanbul"
]
// Begin upload
Alamofire.upload(.POST, "upload_url",
// define your headers here
headers: ["Authorization": "auth_token"],
multipartFormData: { multipartFormData in
// import image to request
if let imageData = UIImageJPEGRepresentation(image, 1) {
multipartFormData.appendBodyPart(data: imageData, name: "file", fileName: "myImage.png", mimeType: "image/png")
}
// import parameters
for (key, value) in parameters {
multipartFormData.appendBodyPart(data: value.dataUsingEncoding(NSUTF8StringEncoding)!, name: key)
}
}, // you can customise Threshold if you wish. This is the alamofire's default value
encodingMemoryThreshold: Manager.MultipartFormDataEncodingMemoryThreshold,
encodingCompletion: { encodingResult in
switch encodingResult {
case .Success(let upload, _, _):
upload.responseJSON { response in
debugPrint(response)
}
case .Failure(let encodingError):
print(encodingError)
}
})
}当前快速版本：https://github.com/Alamofire/Alamofire/blob/master/Documentation/Usage.md#uploading-data-to-a-server
Stack Overflow用户
发布于 2015-10-08 10:19:49
下面是一个基于反空白答案的使用Alamofire 3.0的解决方案：
let parameters = [
"par1": "value",
"par2": "value2"]
let URL = "YOUR_URL.php"
let image = UIImage(named: "image.png")
Alamofire.upload(.POST, URL, multipartFormData: {
multipartFormData in
if let _image = image {
if let imageData = UIImageJPEGRepresentation(_image, 0.5) {
multipartFormData.appendBodyPart(data: imageData, name: "file", fileName: "file.png", mimeType: "image/png")
}
}
for (key, value) in parameters {
multipartFormData.appendBodyPart(data: value.dataUsingEncoding(NSUTF8StringEncoding)!, name: key)
}
}, encodingCompletion: {
encodingResult in
switch encodingResult {
case .Success(let upload, _, _):
upload.responseObject { (response: Response<UploadData, NSError>) -> Void in
switch response.result {
case .Success:
completionHandler?(success: true)
case .Failure(let error):
completionHandler?(success: false)
}
}
case .Failure(let encodingError):
print(encodingError)
}
})页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/26121827
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