我遇到了上传带有图像数据的问题。以下代码可以正常上传数据:
NSURL *url = [NSURL URLWithString:@"my_base_url"];
AFHTTPClient *client = [[AFHTTPClient alloc]initWithBaseURL:url];
//depending on what kind of response you expect.. change it if you expect XML
[client registerHTTPOperationClass:[AFJSONRequestOperation class]];
NSDictionary *params = [[NSDictionary alloc]initWithObjectsAndKeys:
_topicText.text,@"Topic",
@"1",@"Category",
@"",@"MainMedia",
@"1",@"Creator",
nil];
[client postPath:@"apidebate/debates" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
//
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"failure");
}];
然而,我在尝试使用该数据上传图像时一直不成功:
NSURL *url = [NSURL URLWithString:@"my_base_url"];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
NSData *imageData = UIImageJPEGRepresentation([UIImage imageNamed:@"MainMedia"], 0.5);
NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:@"/upload" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
[formData appendPartWithFileData:imageData name:@"MainMedia" fileName:@"MainMedia" mimeType:@"image/jpeg"];
}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setUploadProgressBlock:^(NSInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
}];
[operation start];
我到底做错了什么??
编辑(添加服务器代码)
后端是Codeigniter,使用了Phil Sturgeon编写的REST客户端(非常好用的库,顺便说一下)。虽然我几乎可以确定不是服务器代码的问题,因为该方法的第一行会向我发送一封电子邮件。但当我尝试使用上述代码上传图片时,我收不到任何电子邮件。因此,似乎它甚至还没有到达终点。
//CONTROLLER FROM API
function debates_post()
{
mail('myemailaddress@gmail.com', 'Test', 'Posted');
$tmp_dir = "images/posted/";
if(isset($_FILES['MainMedia'])){
$SaniFileName = preg_replace('/[^a-zA-Z0-9-_\.]/','', basename($_FILES['MainMedia']['name']));
$file = $tmp_dir . $SaniFileName;
move_uploaded_file($_FILES['MainMedia']['tmp_name'], $file);
}
else
$SaniFileName = NULL;
$data = array('Topic'=>$this->post('Topic'), 'MainMedia'=>$this->post('MainMedia'), 'Category'=>$this->post('Category'), 'Creator'=>$this->post('Creator'));
$insert = $this->debate->post_debate($this->post('Topic'), $SaniFileName, $this->post('Category'), $this->post('Creator'));
if($insert){
$message = $this->db->insert_id();
}
else{
$message = 'Insert failed';
}
$this->response($message, 200);
}
//MODEL
function post_debate($Topic=NULL, $MainMedia='', $Category=NULL, $Creator=NULL){
$MainMedia = ($MainMedia)?$MainMedia:'';
$data = array(
'Topic' => $Topic,
'MainMedia' => $MainMedia,
'Category' => $Category,
'Creator' => $Creator,
'Created' => date('Y-m-d h:i:s')
);
return $this->db->insert('debate_table', $data);
}
[httpClient enqueueHTTPRequestOperation:operation]
代替[operation start]
。 - Felix