IOS中强大的网络通信类库AFNetworking使用示例

#import <AFNetworking/AFNetworking.h>

NSURL *url = [NSURL URLWithString:@"http://api.twitter.com/1/statuses/public_timeline.json"];

NSURLRequest *request = [NSURLRequest requestWithURL: url];

// 使用AFJSONRequestOperation用于处理JSON格式的response数据。

// 同理还有AFXMLRequestOperation，AFPropertyListRequestOperation，

// AFImageRequestOperation等，都是AFHTTPRequestOperation的子类。

AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest: request

    success:^(NSURLRequest *request,NSHTTPURLResponse *response,id JSON) {

        NSLog(@"Public Timeline: %@",JSON);

    } failure:nil];

[operation start];

fun updateWeatherInfo(latitude: CLLocationDegrees,longitude: CLLocationDegrees) {

    let manager = AFHTTPRequestOperationManager()

    let url = "http://api.openweathermap.org/data/2.5/weather"

    let params = ["lat": latitude,"lon": longitude,"cnt": 0]

    manager.GET(url,parameters: params,success: { (operation: AFHTTPRequestOperation!,responSEObject: AnyObject!) in

                          println("JSON: " + responSEObject.description!)

                          self.updateUISuccess(responSEObject as NSDictionary!)

            },failure: { (operation: AFHTTPRequestOperation!,error: NSError!) in

                          println("Error: " + error.localizedDescription)

                          self.loading.text = "Internet appears down!"

            }

    )

}