- (void)HTTPGET

{

    //1.构造NSURL

    NSURL *url = [NSURL URLWithString:@"http://piao.163.com/m/cinema/list.html?app_id=1&mobileType=iPhone&ver=2.6&channel=appstore&deviceId=9E89CB6D-A62F-438C-8010-19278D46A8A6&apiVer=6&city=110000"];

    //2.构造NSURLRequest请求对象

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];

    //对请求对象进行设置

    request.URL = url;

    request.HTTPMethod = @"GET";

    //3.构造NSURLSession会话对象

    NSURLSession *session = [NSURLSession sharedSession];

    //4.创建dataTask网络请求任务(请求任务有3种dataTask, downloadTask, uploadTask)

    /*

     (1)completionHandler:是网络请求完成后会回调的block

     (2)response代表响应对象，可以由它获取当前响应的状态，响应头数据

     (3)data代表服务器传输的数据，即响应体的内容

     (4)error代表请求过程中出现错误，可以用它进行调试。

     */

    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

        NSHTTPURLResponse *HTTPResponse = (NSHTTPURLResponse *)response;

        //打印响应状态码，200表示请求成功，其他百度一下HTTP响应状态码对照看就可以了

        NSLog(@"响应状态码 = %ld",HTTPResponse.statusCode);

        //这里返回的是json数据，对响应数据进行json解析

        id result = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];

        NSLog(@"接收到的数据：%@",result);

    }];

    //5.开始发送网络请求或者是继续之前挂起的网络请求任务

    [dataTask resume];

}

- (void)HTTPPOST

{

    //1.构造NSURL

    NSURL *url = [NSURL URLWithString:@"http://piao.163.com/m/cinema/schedule.html?app_id=1&mobileType=iPhone&ver=2.6&channel=appstore&deviceId=9E89CB6D-A62F-438C-8010-19278D46A8A6&apiVer=6&city=110000"];

    //2.构造NSURLRequest请求对象

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];

    request.URL = url;

    request.HTTPMethod = @"POST";

    NSString *bodyString = @"cinema_id=1533";

    request.HTTPBody = [bodyString dataUsingEncoding:NSUTF8StringEncoding];

    //3.构造NSURLSession会话对象(单例)

    NSURLSession *session = [NSURLSession sharedSession];

    //4.创建dataTask网络请求任务

    NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

        //打印响应状态码，200表示请求成功，其他百度一下HTTP响应状态码对照看就可以了

        NSHTTPURLResponse *HTTPResponse = (NSHTTPURLResponse *)response;

        NSLog(@"响应状态码 = %ld",HTTPResponse.statusCode);

        //获取响应体数据，进行JSON解析

        NSError *jsonError = nil;

        id result = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&jsonError];

        NSLog(@"%@", result);

    }];

    [task resume];

}