NSMutableURLRequest setTimeoutInterval 问题
好的，首先，如果我使用如下所示的 NSURLReuqest（非可变），连接会根据设置的内容超时。 奇怪的是为什么NSLog总是读到0？
self.requestURL = [NSURLRequest requestWithURL:[NSURL URLWithString:requestString]cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0];
NSLog(@"request timeOutInterval:%d", self.requestURL.timeoutInterval); // always 0
接下来，我做了类似的事情，但 timeoutInterval 没有设置。
self.requestURL = [[[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:requestString]] autorelease];
[self.requestURL setTimeoutInterval:20];
NSLog(@"request timeOutInterval:%i", self.requestURL.timeoutInterval); // same thing always 0 here.
编辑。我现在使用 %f 来记录 timeoutInterval 属性，两者的读数均为 20.000。但真正的问题是为什么我的 NSMutableURLRequest 在达到 timeoutInterval(20s) 时没有触发 - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error 委托回调方法。相反，它仅在 75 秒左右超时。甚至比默认的 60 秒还要长...
即使我删除 [self.requestURL setTimeoutInterval:20]; 行，连接仍然在 75 秒时超时。
我尝试过
self.requestURL = [[[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:requestString] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0] autorelease];
Ok firstly if I use a NSURLReuqest(non mutable) as following, the the connection do timeout accordingly to what was set.
The weird thing is why does the NSLog always read 0?
self.requestURL = [NSURLRequest requestWithURL:[NSURL URLWithString:requestString]cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0];
NSLog(@"request timeOutInterval:%d", self.requestURL.timeoutInterval); // always 0
Next, I do something like this and the timeoutInterval does not get set.
self.requestURL = [[[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:requestString]] autorelease];
[self.requestURL setTimeoutInterval:20];
NSLog(@"request timeOutInterval:%i", self.requestURL.timeoutInterval); // same thing always 0 here.
EDIT. I am using %f to log the timeoutInterval property now and both reads 20.000. But the real problem is why was my my NSMutableURLRequest not firing the - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error delegate call back method when it reaches the timeoutInterval(20s). Instead it is only timed out at around the 75s. Even longer than the default of 60s...
Even if I remove the [self.requestURL setTimeoutInterval:20]; line, the connection still timeout at 75s.
I have tried
self.requestURL = [[[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:requestString] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0] autorelease];
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（4）
试试这个
NSLog(@"request timeOutInterval:%f", self.requestURL.timeoutInterval);它对我有用。更新
检查@Francois在之前的SO问题
Try this
NSLog(@"request timeOutInterval:%f", self.requestURL.timeoutInterval);It worked for me.UPDATE
Check this answer by @Francois in this previous SO question
您的
NSLog语句使用%d格式说明符，它表示整数，但timeoutInterval属性是双精度型。尝试使用
%f代替，这表明您想要记录双精度值。Your
NSLogstatement uses a%dformat specifier, which indicates an integer, but thetimeoutIntervalproperty is a double.Try using
%finstead, which indicates you want to log a double value.它对我有用：
it work for me:
使用
%f，NSTimeInterval是浮点数。Use
%f,NSTimeIntervalis floating point number.