/**

 *  异步POST请求:以body方式,支持数组

 *

 *  @param url     请求的url

 *  @param body    body数据

 *  @param success 成功回调

 *  @param failure 失败回调

 */

+ (void)postWithUrl:(NSString *)url body:(NSData *)body success:(HttpSuccess)success failure:(HttpSuccess)failure {

    NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:url parameters:nil error:nil];

    request.timeoutInterval = TIMEOUTINTERVAL;

    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

    // 设置body

    [request setHTTPBody:body];

    AFHTTPSessionManager * manager = [AFHTTPSessionManager manager];

    manager.requestSerializer = [AFJSONRequestSerializer serializer];

    manager.responseSerializer = [AFHTTPResponseSerializer serializer];

    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/json", @"text/plain", @"text/html", nil];

    [[manager dataTaskWithRequest:request completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {

        if (error) {

            failure(error);

        } else {

            id json = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil];

            success(json);

        }

    }] resume];

}