Question

我的应用中遇到了一个奇怪的问题。 NSURLConnection经常进入以下委托方法（超时发生前请求后几秒）：

- (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];
}

我正在做这样的连接：

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，那么请求的默认超时（60秒？）。我试图改变它，但它没有改变任何东西。

知道为什么吗？

提前致谢。

Answer 1

试试这段代码：

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

而不是

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

您可以更改timeoutinterval。

NSURLConnection在请求后几秒钟经常超时

1 个答案: