如何将图像发布到Web服务器
我正在使用jsonparsing来处理web服务。 我能够从Web服务获取图像，有人可以帮我如何发布图像？ 我如何可以将图像发布到Web服务？
在这里findserverside（PHP）编码图像随机名称上传。 也会给图像链接作为回应。
//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}"; } ?>
这里是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); }
这将是沿线的东西…
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];
谢谢
检查下面的好教程。在这个教程中，你也可以findios方面的代码以及服务器端的php代码。 http://zcentric.com/2008/08/29/post-a-uiimage-to-the-web/
使用ASIHttpFormData的最佳方法点击这里了解如何使用