HTTP获取方法获取空值

Question

我使用HTTP获取方法从URL中获取值，在URL响应越来越，但对我来说价值不来，任何人都可以帮助我。下面是我的编码

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; 
[request setURL:[NSURL URLWithString:@"http://www.gmasa.org/wp-json/posts?type=owl-carousel&filter[Carousel]=speakers&filter[posts_per_page]=-1"]]; 



NSURLResponse *requestResponse; 
NSHTTPURLResponse *HTTPResponse = (NSHTTPURLResponse *)requestResponse; 
NSInteger statusCode = [HTTPResponse statusCode]; 

NSData *requestHandler = [[NSData alloc]init]; 
requestHandler = [NSURLConnection sendSynchronousRequest:request returningResponse:&requestResponse error:nil]; 

NSLog(@"requestresponce: %@", requestHandler); 

NSString *requestReply = [[NSString alloc] initWithBytes:[requestHandler bytes] length:[requestHandler length] encoding:NSASCIIStringEncoding]; 
NSLog(@"requestReply: %@", requestReply); 

我请求句柄值也越来越喜欢这个“<>”，什么是问题。

Answer 1

获取和分析的连接错误，如果任何与响应：

NSError *error; 
NSData *requestHandler = [[NSData alloc]init]; 
requestHandler = [NSURLConnection sendSynchronousRequest:request returningResponse:&requestResponse error:&error]; 
NSLog(@"Connection error = %@", error); 
NSLog(@"Response = %@", requestResponse); 

没有这些信息就无法确定哪里是一个问题 - 它可能是连接不良，不良URL，后端问题等在...