NSUrlConnection类对象，NSMutableData类对象如何释放？

Question

我正在制作一个应用程序。在那个 iam 中使用 NSUrlconnection 类。下面是我的代码。

- (void)viewDidLoad {
[super viewDidLoad];
responsedata = [[NSMutableData data] retain];
NSString *url = [NSString stringWithFormat:@"https://www.google.com"];
NSURL *URL = [NSURL URLWithString:url];
NSURLRequest *request=[[NSURLRequest alloc]initWithURL:URL];
[[NSURLConnection alloc] initWithRequest:request delegate:self];

[request release];
}

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

   [responsedata setLength:0];
}
 - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responsedata appendData:data];
   }

  - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
    }
  - (void)connectionDidFinishLoading:(NSURLConnection *)connection {

     [connection release];
    }

在此代码中，当 iam 执行时，它显示了内存泄漏 responsedata = [[NSMutableData data] retain]; [[NSURLConnection alloc] initWithRequest:request delegate:self]; 在viewDidLoad() .SO 请告诉我它是在哪里发布的。

Answer 1

1. 您应该保存对您的NSURLConnection 的引用：

   NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

2. 你应该启动它：

   [connection start];

3. 您应该在didFailWithError 或connectionDidFinishLoading 中发布它。