我是 Django 和 IOS 的新手。我陷入了这种多部分数据传递中,需要您的建议!
目前,我正在研究图像上传功能。从客户端,我想将图像文件与附加信息(例如 access_token)一起发送。在服务器端,我尝试通过 request.raw_post_data 获取 json 数据,并通过 reuqest.FILES 获取图像
事实证明,我只能获取 JSON 数据或图像,不能同时获取两者。更糟糕的是,客户端只返回 500 错误而没有其他信息......
这是客户端代码
NSURL *url = [NSURL URLWithString:urlPath];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
// The parameter to send
NSDictionary * params = dictionaryToSent;
// the image need to upload
NSData *imageData = UIImageJPEGRepresentation(image, 1);
NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:@"" parameters:params constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
[formData
appendPartWithFileData:imageData
name:@"image"
fileName:@"uniqueFileName"
mimeType:@"image/jpeg"];
}];
AFJSONRequestOperation* jsonOperation=[[AFJSONRequestOperation alloc]initWithRequest:request];
[jsonOperation setUploadProgressBlock:^(NSInteger bytesWritten, NSInteger totalBytesWritten, NSInteger totalBytesExpectedToWrite) {
NSLog(@"Sent %d of %d bytes", totalBytesWritten, totalBytesExpectedToWrite);
}];
[jsonOperation setCompletionBlockWithSuccess: ^(AFHTTPRequestOperation *operation, id JSON) {
// Handler for request is completed
}failure:^(AFHTTPRequestOperation *operation, NSError *error) {
//Handler for request is failured;
}];
[jsonOperation start];
我在服务器端尝试了两种方法。一个是给我500错误的表格
form = UploadFileForm(request.POST, request.FILES)
另一个如下(请忽略缩进问题)
data=json.loads(request.raw_post_data)
ck_token = data['access_token']
if 'image' in request.FILES:
upload = request.FILES['image']
filename = upload.name
user = Basic.objects.get(ck_token = ck_token)
post = Post(user_id = user.user_id, image = upload, caption = "Hello World")
post.save()
ret_json = {
'success': True,
'post_id': post.id
}
else:
ret_json = {
'success': False,
'error_message': "image not found"
}
使用第二种方法,我可以上传图片但找不到 access_token。我想知道 access_token 存储在哪里-.-||| 还是客户端的问题?
非常感谢您的帮助!!!!