网络获取解析数据失败的一个原因

手动设置--手动设置数据格式

AFHTTPRequestOperationManager * manger = [AFHTTPRequestOperationManager manager];
    manger.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html", nil];
    
    
    [manger GET:[NSString stringWithFormat:ARTICALURL , _page] parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
        
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        
    }];
}