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我從Swift應用上傳圖片到Django服務器時出錯，但我無法理解錯誤的含義。 回溯是當我從Swift應用上傳圖片到服務器時出現錯誤
objc[31747]: Class PLBuildVersion is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices (0x11aa7d998) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices (0x119968880). One of the two will be used. Which one is undefined.
2017-06-16 23:11:52.837756 Kenshin_Swift[31747:1350088] [Generic] Creating an image format with an unknown type is an error
2017-06-16 23:11:54.274757 Kenshin_Swift[31747:1350153] [] nw_socket_get_input_frames recvmsg(fd 13, 1024 bytes): [54] Connection reset by peer
2017-06-16 23:11:54.276896 Kenshin_Swift[31747:1350153] [] nw_endpoint_flow_prepare_output_frames [1 127.0.0.1:8000 ready socket-flow (satisfied)] Failed to use 1 frames, marking as failed
2017-06-16 23:11:54.277301 Kenshin_Swift[31747:1350153] [] nw_socket_write_close shutdown(13, SHUT_WR): [57] Socket is not connected
2017-06-16 23:11:54.277684 Kenshin_Swift[31747:1350153] [] nw_endpoint_flow_service_writes [1 127.0.0.1:8000 ready socket-flow (satisfied)] Write request has 0 frame count, 0 byte count
2017-06-16 23:11:54.278467 Kenshin_Swift[31747:1350154] [] __tcp_connection_write_eof_block_invoke Write close callback received error: [89] Operation canceled
error=Optional(Error Domain=NSURLErrorDomain Code=-1001 "The request timed out." UserInfo={NSUnderlyingError=0x60800025cda0 {Error Domain=kCFErrorDomainCFNetwork Code=-1001 "(null)" UserInfo={_kCFStreamErrorCodeKey=-2102, _kCFStreamErrorDomainKey=4}}, NSErrorFailingURLStringKey=http://127.0.0.1:8000/accounts/upload_save/, NSErrorFailingURLKey=http://127.0.0.1:8000/accounts/upload_save/, _kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-2102, NSLocalizedDescription=The request timed out.})
我寫了斯威夫特正確的網址，用來上傳圖片和網址可通過服務器正在運行python manage.py runserver 0.0.0.0:8000訪問，並且我跑我的服務器能夠從其他設備和訪問它是指在Xcode（這不是我的iPhone模擬器） 所以，我不知道這個錯誤的意思模擬器，我應該做些什麼來解決？斯威夫特代碼
func myImageUploadRequest()
{
let myUrl = NSURL(string: "http://127.0.0.1:8000/accounts/upload_save/");
//let myUrl = NSURL(string: "http://www.boredwear.com/utils/postImage.php");
let request = NSMutableURLRequest(url:myUrl! as URL);
request.httpMethod = "POST";
//ユーザーごとに割り振りたい
let param = [
"firstName" : "Sergey",
"lastName" : "Kargopolov",
"userId" : "9"
]
let boundary = generateBoundaryString()
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
guard let myImage = myImageView.image else {
return
}
let imageData = UIImageJPEGRepresentation(myImageView.image!, 1)
if(imageData==nil) { return; }
request.httpBody = createBodyWithParameters(parameters: param, filePathKey: "file", imageDataKey: imageData! as NSData, boundary: boundary) as Data
myActivityIndicator.startAnimating();
let task = URLSession.shared.dataTask(with: request as URLRequest) {
data, response, error in
if error != nil {
print("error=\(error)")
return
}
// You can print out response object
print("******* response = \(response)")
// Print out reponse body
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
print("****** response data = \(responseString!)")
do {
let json = try JSONSerialization.jsonObject(with: data!, options: []) as? NSDictionary
DispatchQueue.main.async {
self.myActivityIndicator.stopAnimating()
self.myImageView.image = nil;
}
}catch
{
print(error)
}
}
task.resume()
}
func createBodyWithParameters(parameters: [String: String]?, filePathKey: String?, imageDataKey: 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 = "user-profile.jpg"
let mimetype = "image/jpg"
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(imageDataKey as Data)
body.appendString(string: "\r\n")
body.appendString(string: "--\(boundary)--\r\n")
return body
}
func generateBoundaryString() -> String {
return "Boundary-\(NSUUID().uuidString)"
}
}
extension NSMutableData {
func appendString(string: String) {
let data = string.data(using: String.Encoding.utf8, allowLossyConversion: true)
append(data!)
}
而且，我的Django的服務器代碼是
from django.contrib.auth.forms import AuthenticationForm
from django.contrib.auth.decorators import login_required
from django.http import HttpResponse
from django.shortcuts import render, redirect
from django.views.decorators.http import require_POST
from .forms import RegisterForm
from django.contrib.auth import authenticate, login
from .models import Post
from .forms import UserImageForm
from .models import ImageAndUser
def index(request):
context = {
'user': request.user,
}
return render(request, 'registration/accounts/index.html', context)
@login_required
def profile(request):
context = {
'user': request.user,
}
return render(request, 'registration/accounts/profile.html', context)
def regist(request):
form = RegisterForm(request.POST or None)
context = {
'form': form,
}
return render(request, 'registration/accounts/regist.html', context)
def index(request):
context = {
'user': request.user,
}
return render(request, 'registration/accounts/index.html', context)
@login_required
def profile(request):
context = {
'user': request.user,
}
return render(request, 'registration/accounts/profile.html', context)
def regist(request):
form = RegisterForm(request.POST or None)
context = {
'form': form,
}
return render(request, 'registration/accounts/regist.html', context)
@require_POST
def regist_save(request):
form = RegisterForm(request.POST)
if form.is_valid():
user = form.save()
login(request, user)
context = {
'user': request.user,
}
return redirect('profile')
context = {
'form': form,
}
return render(request, 'registration/accounts/regist.html', context)
@login_required
def photo(request):
d = {
'photos': Post.objects.all(),
}
return render(request, 'registration/accounts/profile.html', d)
def upload(request, p_id):
form = UserImageForm(request.POST or None)
d = {
'p_id': p_id,
'form':form,
}
return render(request, 'registration/accounts/photo.html', d)
def upload_save(request):
photo_id = request.POST.get("p_id", "")
if (photo_id):
photo_obj = Post.objects.get(id=photo_id)
else:
photo_obj = Post()
files = request.FILES.getlist("files[]")
photo_obj.image = files[0]
# photo_obj.image2 = files[1]
# photo_obj.image3 = files[2]
photo_obj.save()
# return render(request, "registration/accounts/photo.html")
photos = Post.objects.all()
context = {
'photos': photos,
}
return render(request, 'registration/accounts/photo.html', context)
def kenshinresults(request):
d = {
'results': results,
}
return render(request, 'registration/accounts/kenshin_result.html', d)
def tc(request):
tcresults = ImageAndUser.objects.filter(user=request.user).order_by('id').last()
d = {
'tcresults': tcresults,
}
return render(request, 'registration/accounts/tc.html', d)