xcode 如何将图像发布到 Web 服务器
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how to post an image to the web server
提问by Shivaay
I am working with web services using json parsing. I am able to get images from the web services, can someone help me how to post an image? How i can post an image to the web services?
我正在使用 json 解析来处理 Web 服务。我可以从网络服务中获取图像，有人可以帮助我如何发布图像吗？如何将图像发布到 Web 服务？
采纳答案by Siba Prasad Hota
Find here serverside (PHP) coding for image Upload with random name. also it will give the image link as response.
在此处找到用于使用随机名称上传图像的服务器端 (PHP) 编码。它还将提供图像链接作为响应。
//Create a folder named images in your server where you want to upload the image.
// And Create a PHP file and use below code .
<?php
$uploaddir = 'images/';
$ran = rand () ;
$file = basename($_FILES['userfile']['name']);
$uploadfile = $uploaddir .$ran.$file;
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
echo "www.host.com/.../images/{$uploadfile}";
}
?>
And Here is iOS code
这是iOS代码
- (IBAction)uploadClicked:(id)sender
{
/*
turning the image into a NSData object
getting the image back out of the UIImageView
setting the quality to 90
*/
NSData *imageData = UIImageJPEGRepresentation(imageView.image, 90);
// setting up the URL to post to
NSString *urlString = @"your URL link";
// setting up the request object now
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
/*
add some header info now
we always need a boundary when we post a file
also we need to set the content type
You might want to generate a random boundary.. this is just the same
as my output from wireshark on a valid html 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
*/
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:@"rn--%@rn",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name="userfile"; filename="ipodfile.jpg"rn"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Type: application/octet-streamrnrn"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"rn--%@--rn",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);
}
回答by Fogmeister
it will be something along the lines of this...
这将是这样的……
NSMutableURLRequest *mutableRequest = [[NSMutableURLRequest alloc] initWithURL:@"you url"];
[mutableRequest addValue:@"image/jpeg" forHTTPHeaderField: @"Content-Type"];
NSMutableData *body = [NSMutableData data];
[body appendData:[NSData dataWithData:UIImageJPEGRepresentation(self.image, 0.9)]];
[mutableRequest setHTTPBody:body];
NSURLResponse *response;
NSError *error;
(void) [NSURLConnection sendSynchronousRequest:mutableRequest returningResponse:&response error:&error];
Thanks
谢谢
回答by Susim Samanta
Check below good tutorial.In that tutorial you able to find the ios side code as well server side php code too. http://zcentric.com/2008/08/29/post-a-uiimage-to-the-web/
检查下面的好教程。在该教程中，您也可以找到 ios 端代码以及服务器端 php 代码。 http://zcentric.com/2008/08/29/post-a-uiimage-to-the-web/
回答by SachinVsSachin
The best way to use ASIHttpFormData Click here to know how to use
使用ASIHttpFormData的最佳方式点此了解使用方法
