NSURLSessin

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
//    [self GETSession];
    
    [self POSTSessin];
    
}
-(void)GETSession{
    
    //GET 请求
    //创建网络路径
    NSURL *url = [NSURL URLWithString:@"http://www.biqumo.com/8_8230/4581301.html"];
    //创建网络请求
    NSURLRequest *requst = [NSURLRequest requestWithURL:url];
    //获取会话对象
    NSURLSession *session = [NSURLSession sharedSession];
    //根据会话对象  创建一个task任务
    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:requst completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        NSLog(@"请求对象成功");
        //对服务器返回的数据进行处理
        if (data && error == nil) {
            NSLog(@"data:%@",[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]);
        }else{
            NSLog(@"请求失败");
            NSLog(@"error:%@",error);
        }
    }];
    //执行任务
    [dataTask resume];
}

-(void)POSTSessin{
    //创建网络路径
    NSURL *url = [NSURL URLWithString:@"http://www.biqumo.com/8_8230/4581301.html"];
    //创建网络请求
    NSMutableURLRequest *requst = [NSMutableURLRequest requestWithURL:url];
    //设置请求方式
    requst.HTTPMethod = @"POST";
    //如果是post请求  参数附带信息要放到请求体
    NSString *str = [NSString stringWithFormat:@"youname=%@&youpassword=%@"];
    //将附带参数放到请求体
    requst.HTTPBody = [str dataUsingEncoding:NSUTF8StringEncoding];
    //创建会话对象
    NSURLSession *session = [NSURLSession sharedSession];
    //根据会话对象创建会话任务
    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:requst completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        NSLog(@"请求对象成功");
        //对服务器返回的数据进行处理
        if (data && error == nil) {
            NSLog(@"data:%@",[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]);
        }else{
            NSLog(@"请求失败");
            NSLog(@"error:%@",error);
        }
    }];
    [dataTask resume];
}
@end