NSURLSession的用法

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{

//[self getTest];

[self postTest];

}

-(void) getTest{

NSURLSession *session = [NSURLSession sharedSession];

NSURL *url = [NSURL URLWithString:@"http://120.25.226.186:32812/video?type=JSON"];

NSURLSessionTask *task = [session dataTaskWithURL:url completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

NSLog(@"%d",data.length);

NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];

NSLog(@"%@",dict);

}];

[task resume];

}

-(void) postTest{

NSURLSession *session = [NSURLSession sharedSession];

//url = http://120.25.226.186:32812/login?username=123&pwd=123&type=JSON

NSURL *url = [NSURL URLWithString:@"http://120.25.226.186:32812/login"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

request.HTTPMethod=@"POST";

request.HTTPBody = [@"username=123&pwd=123&type=JSON" dataUsingEncoding:NSUTF8StringEncoding];

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

NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];

NSLog(@"___%@",dict);

}];

[task resume];

}