NSURLConnection Timeout(NSURLConnection超时)通常发生在请求后几秒钟

Question

我的应用程序出现了一个奇怪的问题。NSURL连接经常转到以下委托方法(请求后几秒钟，超时发生(：

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
  if (DEBUG_ON)
      NSLog(@"No connection");
  UIAlertView *popup = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Error", nil) message:NSLocalizedString(@"TimeoutError", nil) delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
  popup.alertViewStyle = UIAlertViewStyleDefault;
  [popup show];
}

我的所有连接都是这样的：

NSString *dataStr = [NSString stringWithFormat:LOGIN_JSON_TEMPLATE, email, passwd];
NSData *data = [dataStr dataUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:LOGIN_WS];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:[NSString stringWithFormat:@"%d", [data length]] forHTTPHeaderField:@"Content-Length"];
[request setHTTPBody:data];
if (self.loginConnection == nil)
    self.loginConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
else
    self.loginConnection = [self.loginConnection initWithRequest:request delegate:self];

如果我是对的，那么请求会有一个默认的超时(60秒？(。我试着改变它，但它没有改变任何东西。

知道为什么吗？

提前谢谢。

Answer 1

试试这个代码：

NSMutableURLRequest *request1 = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:1200.0]; 

代替

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];

并且您可以更改timeoutinterval。