只不过需要多注意，如果要改变请求的类型，需要生成NSMutableURLRequest对象才可以设置请求的类型。
NSURL *url = [NSURL URLWithString:@"http://120.25.226.186:32812/login"]; // 创建请求 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; request.HTTPMethod = @"POST";// 设置为POST请求 request.HTTPBody = [@"username=122&pwd=1222" dataUsingEncoding:NSUTF8StringEncoding];// 设置请求体,需要注意将字符串转换为DATA // 发送请求 [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) { NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"%@",str); }];
转载于:https://www.cnblogs.com/BJTUzhengli/p/5152440.html
