【发布时间】:2017-02-27 00:29:21
【问题描述】:
当我使用以下代码时,出现错误消息:
[NSURLConnection sendAsynchronousRequest:request queue:myQueue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(@"response status code: %ld, error status : %@", (long)[httpResponse statusCode], error.description);
if ((long)[httpResponse statusCode] >= 200 && (long)[httpResponse statusCode]< 400)
{
// do stuff
[self requestFunction]; //Web Service
}
}];
错误信息:
2017-02-27 01:13:30.088641 RENAULT[210:12313] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2017-02-27 01:13:30.090449 RENAULT[210:12313] [MC] Reading from public effective user settings.
[self requestFunction] 函数发起一个简单的请求:
NSMutableURLRequest* request = [[NSMutableURLRequest alloc] init];
NSString *url_string = [bytes stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
[request setURL:[NSURL URLWithString:[set_send_order stringByAppendingString: url_string]]];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setTimeoutInterval:timeOut];
[NSURLConnection connectionWithRequest:request delegate:self];
我确定没有调用 connectionDidFinishLoading:,但是如果我直接启动它而不使用 sendAsynchronousRequest:,它可以工作。 那么为什么我使用 sendAsynchronousRequest: 函数让我出现两条错误消息,以及 connectionDidFinishLoading 的错误调用?
提前谢谢你。
【问题讨论】:
标签: ios objective-c xcode nsurlconnection sendasynchronousrequest