我正在尝试将单个UIImage上传到服务器,除了图像永远不会上传外,一切似乎都没问题。
这是我用来在iOS上传图片的代码:
const NSString *boundaryConstant = @"----------V2ymHFg03ehbqgZCaKO6jy";
const NSString *fileParamConstant = @"photo";
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:nil];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPMethod:@"POST"];
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundaryConstant];
[request setValue:contentType forHTTPHeaderField:@"Content-Type"];
NSMutableData *body = [NSMutableData data];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library assetForURL:info[UIImagePickerControllerReferenceURL] resultBlock:^(ALAsset *asset) {
ALAssetRepresentation *representation = [asset defaultRepresentation];
// get byte size of image
long long size = [representation size];
unsigned char *bytes = malloc(size);
// read image data into bytes array
[representation getBytes:bytes fromOffset:0 length:size error:nil];
NSData *imageData = [NSData dataWithBytesNoCopy:bytes length:size freeWhenDone:YES];
if (imageData) {
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"%@\"\r\n", fileParamConstant, filename] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Type: %@\r\n\r\n",[SWNetworkController contentTypeForImageData:imageData]] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];
[body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
NSString *postLength = [NSString stringWithFormat:@"%zu", [body length]];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setHTTPBody:body];
NSURLSessionUploadTask *uploadTask = [session uploadTaskWithRequest:request fromData:imageData completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSLog(@"STRING %@", [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);
NSLog(@"%@", response);
NSLog(@"%@", error);
}];
[uploadTask resume];
} failureBlock:^(NSError *error) {
NSLog(@"Image error:\n%@",error);
}];
服务器以200
OK状态响应并且没有错误,除了没有收到图像并且没有从服务器返回任何内容(如果没有上传图像,这是预期的。)
这是服务器端代码:
<?
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $_FILES["photo"]["name"]);
$extension = end($temp);
error_log(print_r($_FILES, true));
if ((($_FILES["photo"]["type"] == "image/gif")
|| ($_FILES["photo"]["type"] == "image/jpeg")
|| ($_FILES["photo"]["type"] == "image/jpg")
|| ($_FILES["photo"]["type"] == "image/pjpeg")
|| ($_FILES["photo"]["type"] == "image/x-png")
|| ($_FILES["photo"]["type"] == "image/png"))
&& ($_FILES["photo"]["size"] < 20000000)
&& in_array($extension, $allowedExts)) {
if ($_FILES["photo"]["error"] == 0) {
$filename = sha1($_FILES['photo']['name'] . uniqid("",true));
if (move_uploaded_file($_FILES['photo']['tmp_name'], 'pic/' . $filename . "." . $extension)) {
// do stuff with the saved image here
}
}
}
?>
正常请求(通过Web界面)记录以下内容:
Array
(
[photo] => Array
(
[name] => BoPzSyRIgAAe1h6.jpg-large.jpeg
[type] => image/jpeg
[tmp_name] => /var/tmp/phpjScXQB
[error] => 0
[size] => 67900
)
)
同时,iOS发送的请求如下:
Array
(
)
对于我的生活,我无法弄清楚出了什么问题......有什么想法吗?
由于
答案 0 :(得分:14)
问题出在NSURLSessionUploadTask *uploadTask = [session uploadTaskWithRequest:request fromData:imageData completionHandler:...]
NSURLSessionUploadTask
忽略提供的请求正文,并将fromData:
参数添加为请求正文。但是,我只是提供图像数据,而不是格式正确的请求体......
固定代码是NSURLSessionUploadTask *uploadTask = [session uploadTaskWithRequest:request fromData:body completionHandler:...]
我会留下我的答案,以防其他人再次遇到此问题。