objective-c - 使用以下代码接收EXC_BAD_ACCESS消息

Question

我是Objective C的新手，所以我甚至不确定该消息的含义:

EXC_BAD_ACCESS

执行以下代码时:

-(void)HelloWorld
{
    NSURL *url = [NSURL URLWithString:@"http://example.com/service.asmx/HelloWorld"];
    NSMutableURLRequest *request =[NSMutableURLRequest requestWithURL: url];

    //do post request for parameter passing 
    [request setHTTPMethod:@"POST"];

    //set the content type to JSON
    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

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

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 
{
    // Store incoming data into a string
    NSString *jsonString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}

我正在尝试与Json Framework集成。

我叫HelloWorld，它执行对我的服务的异步请求。奇怪的是，它曾经工作过一次，现在我以后每次都收到此EXC_BAD_ACCESS消息。有什么想法会导致这种情况吗？

Answer 1

您不应该释放请求。它已经自动发布。