从iOS上传照片到服务器出错


Error uploading photo from iOS to server

我从iOS应用程序上传照片到web服务器时出错。

我想知道是否有人知道问题可能在哪里,以及我如何才能解决它。如有任何帮助,不胜感激。

错误信息如下:

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>500 Internal Server Error</title>
</head><body>
<h1>Internal Server Error</h1>
<p>The server encountered an internal error or
misconfiguration and was unable to complete
your request.</p>
<p>Please contact the server administrator at 
 webmaster@namehere.ca to inform them of the time this error occurred,
 and the actions you performed just before this error.</p>
<p>More information about this error may be available
in the server error log.</p>
<p>Additionally, a 404 Not Found
error was encountered while trying to use an ErrorDocument to handle the request.</p>
</body></html>
以下是iOS代码:
- (IBAction)uploadPhoto:(id)sender {
    NSData *imageData = UIImageJPEGRepresentation(_imageView.image, 90);
    NSString *urlString = @"http://website.ca/uploadPhoto.php";
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:urlString]];
    [request setHTTPMethod:@"POST"];
    NSString *boundary = @"---------------------------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:[@"Content-Disposition: form-data; name='"userfile'"; filename='".jpg'"'r'n" dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[@"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]];
    [request setHTTPBody:body];
    NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
    NSLog(@"%@", returnString);
}
下面是PHP代码:
<?php
$uploaddir = 'uploads/';
$ran = rand () ;
$file = basename($_FILES['userfile']['name']);
$uploadfile = $uploaddir .$ran.$file;
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
        echo "Uploaded";
}
?>

在$_POST['userfile']而不是$_Files['userfile']中接收图像…使用以下代码

 <?php

$image = $_POST['userfile'];
$image = str_replace("<","",$image);
$image = str_replace(">","",$image);
$image = str_replace(" ","",$image);
$image = pack("H*", $image);
$filename = "img/image.png";
$f = fopen($filename,'wb');
fwrite($f, $image);
fclose($f);

?>