如何停止nsurlconnection？

我使用的是nsfile手柄的URL连接到服务器，从接收数据，这是我使用的代码，如何停止nsurlconnection？

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse*)response { 

filename = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"Ep1.mp4"; 

[[NSFileManager defaultManager] createFileAtPath:filename contents:nil attributes:nil]; 
file =[NSFileHandle fileHandleForUpdatingAtPath:filename] ; 

if (file) { 

    [file seekToEndOfFile]; 
}} 

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { 


if (file) { 

    [file seekToEndOfFile]; 

} [file writeData:data]; } 


- (void)connectionDidFinishLoading:(NSURLConnection*)connection { 


[file closeFile]; 
} 


-(void)downloadFile{ 

targetURL = [NSURL URLWithString:@"http://some url "]; 

DownloadRequest = [NSURLRequest requestWithURL:targetURL cachePolicy:NSURLRequestReturnCacheDataElseLoad timeoutInterval:50.0]; 
DownloadConnection = [[NSURLConnection alloc] initWithRequest:DownloadRequest delegate:self]; 

if (DownloadConnection) { 
    receivedData = [NSMutableData data]; 
} 
}

我想停止连接，下载文件的时候，所以，我创建按钮 --->

- (void)buttonPressed:(id)sender 
{ 
DownloadConnection = [[NSURLConnection alloc] initWithRequest: DownloadRequest delegate:self]; 
[ DownloadConnection cancel]; 
}

但不工作，数据仍在接受，我错过理解的东西吗？或我能做些什么？

来源

2012-03-12 cmin

见[这里]（http://stackoverflow.com/a/7229304/845115） – 2012-03-12 09:37:00

谢谢〜我想念“自我”....哈哈 – cmin 2012-03-12 10:10:49

编辑： 这是我找到了解决办法：

- (void)buttonPressed:(id)sender 
{ 
DownloadConnection = [[NSURLConnection alloc] initWithRequest: DownloadRequest delegate:self]; 
[ self.DownloadConnection cancel]; 
}

添加自取消当前连接...

来源

2012-03-15 10:01:57 cmin

如何停止nsurlconnection？

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