新手有使用ASIHTTPRequest上传文件的问题 [英] Newbie having issues with uploading a file using ASIHTTPRequest

问题描述

我真的，真的，真的使用一些帮助。我已经看了无处不在一些详细的文档（对于虚拟）使用ASIFormDataRequest的照片上传。

这是什么（在相关的部分）我有，虽然我知道我可能会离开。

Camera.h

  #import< UIKit / UIKit.h> 
 @class ASIFormDataRequest; 
 
 ... 
  

Camera.m

  #importCamera.h
 #importASIHTTPRequest.h
 #importASIFormDataRequest.h
 
 ... 
 
  - （void）uploadImage：（NSData *）imageData filename：（NSString *）filename {
 NSURL * url = [NSURL URLWithString：@http： //moosesightings.com/test.php]; 
 ASIFormDataRequest * request = [ASIFormDataRequest requestWithURL：url]; 
 //在磁盘上上传文件
 [请求setData：imageData withFileName：filename andContentType：@image / jpegforKey：@userfile]; 
 [request setDelegate：self]; 
 [request startAsynchronous]; 
} 
 
 ... 
 
  - （void）imagePickerController：（UIImagePickerController *）picker didFinishPickingMediaWithInfo：（NSDictionary *）info 
 {
 [picker dismissModalViewControllerAnimated：YES]; 
 [picker.view removeFromSuperview]; 
 //从信息字典访问未裁剪的图像
 UIImage * image = [info objectForKey：@UIImagePickerControllerOriginalImage]; 
 NSString * imageName = @uploaded.jpg; 
 
 //保存图片
 // UIImageWriteToSavedPhotosAlbum（image，self，@selector（image：didFinishSavingWithError：contextInfo :)，nil）; 
 [self uploadImage：UIImageJPEGRepresentation（imageView.image，1.0）filename：imageName]; 
 
 captionControls.hidden = NO; 
 [textView becomeFirstResponder]; 
 
 [picker release]; 
} 
  

这是我收到的脚本。

  $ dir_dest ='uploads /'; 
 ob_start（）; 
 print_r（$ _ FILES）; 
 $ test = ob_get_contents（）; 
 ob_end_clean（）; 
 $ db-> insert（'connecttest'，array（'ts'=> date（'Ymd H：i：s'），'tempfield'=> $ test）） - > execute ）; 
  

这是我得到的结果

  Array 
（
 [null]] => Array 
（
 [name] =>（null）
 [type] =>（null）
 [tmp_name] => C：\Windows \Temp\phpCFF0.tmp 
 [error] => 0 
 [size] => 0 
）
 
）
  

（

解决方案

我遇到了类似的问题，使用

调整图片大小

  UIImage * im = [info objectForKey：@UIImagePickerControllerOriginalImage]; 
 UIGraphicsBeginImageContext（CGSizeMake（320,480））; 
 [im drawInRect：CGRectMake 0,320,480）]; 
 newImage = UIGraphicsGetImageFromCurrentImageContext（）; 
 UIGraphicsEndImageContext（）; 
 NSData * imageData = UIImageJPEGRepresentation（newImage，0.5）; 
  pre> 
 
 
，它开始工作，捕获的图像的高度和宽度将超过2000x2000，所以减少它，并尝试。 
  [request setData：imageData withFileName：@photo.jpgandContentType：@image / jpegforKey：@file ]; 
  
这是php脚本。
  $ filename =uploaded; 
 $ target_path =uploads /; 
 $ target_path = $ target_path。$ filename。。jpg; 
 if（move_uploaded_file（$ _ FILES ['file'] ['tmp_name']，$ target_path））{
 echouploaded a image; 
} else {
 echo上传文件时出错，请重试！ 
} 
  
 
I could really, really, really use some help.  I have looked everywhere on some detailed documentation (for dummies) on using ASIFormDataRequest for photo uploads.  Can someone through me a life line here?

Here is what (in relevance pieces) I have though I know I may be way off.

Camera.h
#import <UIKit/UIKit.h>
@class ASIFormDataRequest; 

...
Camera.m
#import "Camera.h"
#import "ASIHTTPRequest.h"
#import "ASIFormDataRequest.h"

...

- (void)uploadImage:(NSData *)imageData filename:(NSString *)filename{
NSURL *url = [NSURL URLWithString:@"http://moosesightings.com/test.php"];
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
// Upload a file on disk
[request setData:imageData withFileName:filename andContentType:@"image/jpeg" forKey:@"userfile"];
[request setDelegate:self];
[request startAsynchronous];
}

...

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissModalViewControllerAnimated:YES];
[picker.view removeFromSuperview];
// Access the uncropped image from info dictionary
UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
NSString *imageName = @"uploaded.jpg";

// Save image
//UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
[self uploadImage:UIImageJPEGRepresentation(imageView.image, 1.0) filename:imageName];

captionControls.hidden = NO;
[textView becomeFirstResponder];

[picker release];
}
Here is the script I have receiving it.
$dir_dest = 'uploads/';
ob_start();
print_r($_FILES);
$test = ob_get_contents();
ob_end_clean();
$db->insert('connecttest', array('ts'=>date('Y-m-d H:i:s'), 'tempfield'=>$test))->execute();
Here is the result I get
Array
(
    [(null)] => Array
        (
            [name] => (null)
            [type] => (null)
            [tmp_name] => C:\Windows\Temp\phpCFF0.tmp
            [error] => 0
            [size] => 0
        )

)
Please help :(
解决方案
I faced similar problem, i re-sized the image using 
UIImage *im = [info objectForKey:@"UIImagePickerControllerOriginalImage"] ;
UIGraphicsBeginImageContext(CGSizeMake(320,480)); 
[im drawInRect:CGRectMake(0, 0,320,480)];
newImage = UIGraphicsGetImageFromCurrentImageContext(); 
UIGraphicsEndImageContext();
NSData* imageData=UIImageJPEGRepresentation(newImage, 0.5); 
and it started working, the height and width of the captured image will be more than 2000x2000 so reduce it and give a try.  
[request setData:imageData withFileName:@"photo.jpg" andContentType:@"image/jpeg" forKey:@"file"];
and this is the php script.
$filename="uploaded";
$target_path = "uploads/";
$target_path = $target_path .$filename.".jpg"; 
if(move_uploaded_file($_FILES['file']['tmp_name'], $target_path)) {
echo "uploaded an image";
} else{
    echo "There was an error uploading the file, please try again!";
}


                        
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