我已经为这个问题苦苦挣扎了一个多星期!
我无法将图像从我的 iphone 发布到配置了 carrierwave gem 的后端 rails 服务器。通过网络表单发布也可以,通过 JSON 从 iphone 发布文本也可以。
这是我的照片控制器:
class PhotosController < ApplicationController
def new
@photo = Photo.new(:user_id => params[:user_id])
end
def create
@photo = current_user.photos.build(params[:photo])
if @photo.save
respond_to do |format|
format.html { flash[:notice] = "Successfully created photo."
redirect_to @photo.user
}
format.json {
render :json => {:action => 'create', :owner => current_user}
}
end
else
render :action => 'new'
end
end
这是objective-c代码:
UIImage *image = [UIImage imageNamed:@"moon.png"];
NSData *imageData = UIImagePNGRepresentation(image);
NSString *urlString=[NSString stringWithFormat:@"http://127.0.0.1:3000/photos.json"];
// setting up the URL to post to
// setting up the request object now
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"];
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"ipodfile.jpg\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
// setting the body of the post to the reqeust
[request setHTTPBody:body];
// now lets make the connection to the web
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(returnString);
我从服务器得到的响应是:
“EOFError(错误的内容正文)”
用php服务器测试objective-c代码,上传成功!所以我想我的问题与我的 rails/carrierwave 设置有关。请帮助我从我的 iPhone 和我的 Rails 服务器中获取血腥图像。
非常感谢您的帮助。