Question

我在文档目录（iPhone）中有一些图像文件（.png文件）。我在UIWebView上查看Web表单（.aspx）。当我点击表单的提交按钮时，我只想将图像文件附加到表单，并希望将该文件与Web表单一起发送到Web服务器。

我遇到的是，我没有得到如何将图像文件附加到网络表单以及如何提交这两个文件。

请帮我解决这个问题。我没有得到任何提示如何做到这一点。

感谢你......

Answer 1

您需要修改这些示例才能适合您，但它们是有效的示例。

目标C

<强> MyViewController.m:

- (void) upload
{
    NSString *urlString = @"http://www.yourwebsite.com/uploads/upload.php";
    NSData *data = /* turn your png into NSData */

    // 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"];

    /* now lets create the body of the post */
    NSString *content = [NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"%@.png\"\r\n",@"yourPng"];
    NSMutableData *body = [NSMutableData data];
    [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];    
    [body appendData:[[NSString stringWithString:content] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithString:@"Content-Type: text/plain\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[NSData dataWithData:data]];
    [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];  
}

PHP

<强> upload.php:

<?php
//assuming upload.php and upload folder are in the same dir
$uploaddir = 'uploads/';
$file = basename($_FILES['userfile']['name']);
$uploadfile = $uploaddir . $file;
$product = $_GET[product];

if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
    echo "PNG uploaded. \r\n";
} else {
    echo "PNG not uploaded. \r\n";
}

if ($_FILES['userfile']['size']> 300000)     //Limiting image at 300K
{
    exit("Your file is too large."); 
}

// Add support here for PNG files:
if ((!($_FILES['userfile']['type'] == "text/plain")) &&  //Also allowing 
    (!($_FILES['userfile']['type'] == "text/plist")) &&  //plist files
    (!($_FILES['userfile']['type'] == "text/html")))     //HTML files
{
    exit("Incorrect file type.  " . $_FILES['userfile']['type'] . " is the file type you uploaded."); 
}

if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
    $postsize = ini_get('post_max_size');    //Not necessary, I was using these
    $canupload = ini_get('file_uploads');    //server variables to see what was 
    $tempdir = ini_get('upload_tmp_dir');    //going wrong.
    $maxsize = ini_get('upload_max_filesize');
    echo "http://www.yourwebsite.com/uploads/{$file}" . "\r\n" . $_FILES['userfile']['size'] . "\r\n" . $_FILES['userfile']['type'] ;
}
?>

Answer 2

如果您尝试从iphone safari上传文件。你搞砸了，没有支持从iPhone Safari上传文件。

<input type="FILE"/>将被禁用。

Answer 3

解决了我自己的问题！最后一个回声线是需要调整的！

<?php
$uploaddir = './';      //Uploading to same directory as PHP file  ./
$file = basename($_FILES['userfile']['name']);
$uploadFile = $file;
$randomNumber = rand(0, 99999); 
$newName = $uploadDir . $randomNumber . $uploadFile;

if (is_uploaded_file($_FILES['userfile']['tmp_name'])) {

} else {
    echo "Temp file not uploaded. \r\n";
}

if ($_FILES['userfile']['size']> 3000000000000000) {
exit("Your file is too large."); 
}

if (move_uploaded_file($_FILES['userfile']['tmp_name'], $newName)) {
$postsize = ini_get('post_max_size');   //Not necessary, I was using these
$canupload = ini_get('file_uploads');    //server variables to see what was 
$tempdir = ini_get('upload_tmp_dir');   //going wrong.
$maxsize = ini_get('upload_max_filesize');
echo "http://localhost:8888/wouldYa/images/{$randomNumber}{$file}" . "\r\n";
}
?>

现在我迷失了将Xcode中的Str保存到另一个PHP文件中以将文件名插入到我的表中的该用户部分，特别是显示图片部分，这应该不难实现:-)

如果您对我的完整源代码感兴趣，请告诉我，我知道它不是那么安全，但很快它会。

将图像文件上载到Web表单

3 个答案:

目标C

PHP