使用NSURLSessionDataTask请求数据(get post方式)
// // ViewController.m // NSUrlSessionDataTast请求数据 // // Created by 张凯泽 on 16/3/10. // Copyright © 2016年 rytong_zkz. All rights reserved. // #import "ViewController.h" @interface ViewController () @property(nonatomic,strong)NSURLRequest *resquest; @property(nonatomic,strong)NSMutableURLRequest *MutableRequest; @property(nonatomic,strong)NSURL *url; - (IBAction)RequestDataClick:(id)sender; @property (weak, nonatomic) IBOutlet UIImageView *ImageView; @end @implementation ViewController //设置url -(NSURL*)url { if (_url == nil) { _url = [[NSURL alloc]initWithString:@"https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/img/logo/bd_logo1_31bdc765.png"]; } return _url; } //使用get方式设置请求 -(NSURLRequest*)resquest { if (_resquest == nil) { _resquest = [[NSURLRequest alloc]initWithURL:self.url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30.0]; } NSLog(@"_resquest = %@",_resquest); return _resquest; } //使用post方式设置请求 -(NSMutableURLRequest*)MutableRequest { if (_MutableRequest == nil) { _MutableRequest = [[NSMutableURLRequest alloc]initWithURL:self.url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30.0]; _MutableRequest.HTTPBody = [[NSData alloc]init]; _MutableRequest.HTTPMethod = @"POST"; } return _MutableRequest; } - (void)viewDidLoad { [super viewDidLoad]; } //请求数据 - (IBAction)RequestDataClick:(id)sender { NSURLSessionConfiguration * configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; NSURLSession * session = [NSURLSession sessionWithConfiguration:configuration]; NSURLSessionDataTask * dataTask = [session dataTaskWithRequest:self.resquest completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { NSLog(@"______%@",[NSThread currentThread]); NSLog(@"response = %@",response); if (data) { dispatch_async(dispatch_get_main_queue(), ^{ self.ImageView.image = [[UIImage alloc]initWithData:data]; }); } } ]; [dataTask resume]; } @end