Iphone 将图像文件上载到web表单的步骤

我在文档目录（iPhone）中有一些图像文件（.png文件）。我正在UIWebView上查看web表单（.aspx）。当我单击表单的submit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

我所遭受的痛苦是，我不知道如何将图像文件附加到web表单以及如何提交这两个文件

请帮我解决这个问题。我不知道该怎么做

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谢谢您……

您需要修改这些示例来为您工作，但它们都是工作示例

目标-C

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
//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'] ;
}
?>

PHP

upload.php:

- (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
//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'] ;
}
?>

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如果您试图从iphone safari上传文件。 你完蛋了，不支持从iPhone safari上传文件

---

将被禁用。

解决了我自己的问题！最后一条回音线需要调整

<?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，我正在将Str保存在Xcode中，保存到另一个PHP文件中，将文件名插入到我表中该用户的部分，特别是显示图片部分，这应该不难实现：-）

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如果您对我的完整源代码感兴趣，请告诉我，我知道它还没有那么安全，但很快就会安全。

先生，您的代码正在帮助我。但是，问题是，请你用C#Net发布你已经用php发布的服务器端代码。我正在寻找用于在服务器端获取NSData的C#.net语言……对文件大小有任何限制吗？