80+ AJAX-Solutions For Professional Coding | Smashing Magazine
Web-developers can create amazing web-applications with AJAX. Stikkit, Netvibes, GMail and dozens of further web-projects offer a new level of interactivity we’ve used to give up the idea of. Modern web-applications can be designed with enhanced user interfaces and functionalities, which used to be the privelege of professional desktop-applications. AJAX makes it possible to create more interactive, more responsive and more flexible web-solutions. And it’s the first step towards rich internet applications of the future.
40+ Tooltips Scripts With AJAX, JavaScript & CSS | Smashing Magazine
Web users love informative clues. Whatever questions and misunderstandings might occur - delivering precise answers immediately is the primary task a responsive user interface should be able to cope with. To do that, developers have to consider subtle and well-thought tooltips - used correctly, they can greatly improve user experience and help users to get things done. In Web such “responsive” hints can be provided by tooltips. E.g., unclear input fields in web forms are perfect examples of a situation you might be willing to use a tooltip for. Most of solutions are JavaScript- and AJAX-based, however we’ve also managed to find some lightweight CSS-based solutions. To install and use the script, it’s often enough to include the JavaScript library in the source code and provide the hint as plain text within the “title”-attribute. Sometimes you can also insert URLs, images, tables and further elements - basically, it can be almost everything you’d ever wanted it to be. We’d like to thank Jurgen Koller for compiling an extensive list of tooltip scripts we’ve stumbled upon during our search. It gives many useful pointers, but we’ve managed to find some more. You might be willing to use Koller’s post as a quick reference for your search. Let’s take a look at 43 handy tooltips scripts for intuitive and well-designed visual clues. It’s nice to have them all in one place, once you need them. It’s nice to be able to find them, once you don’t have time to search for them.
利用Log4j 创建日志服务器 - z3h的专栏 - CSDNBlog
在J2EE集群运行模式下，日志的记录是一个重要的问题，如果集群中每一个实例均采用自己的日志记录方式，将会在每一台计算机上均有自己的日志文件，对于日志的查看也是一个问题。 幸亏我们有Log4J，Log4J中有通过网络的日志服务器
使用memcached进行内存缓存: 一个藏袍
通常的网页缓存方式有动态缓存和静态缓存等几种，在ASP.NET中已经可以实现对页面局部进行缓存，而使用memcached的缓存比ASP.NET的局部缓存更加灵活，可以缓存任意的对象，不管是否在页面上输出。而memcached最大的优点是可以分布式的部署，这对于大规模应用来说也是必不可少的要求。 LiveJournal.com使用了memcached在前端进行缓存，取得了良好的效果，而像wikipedia,sourceforge等也采用了或即将采用memcached作为缓存工具。memcached可以大规模网站应用发挥巨大的作用
» [译]利用Nginx的X-Accel-Redirect头实现下载控制（附带php和rails实例） » Technology » bianbian coding life
有时你可能需要实现控制下载：即将下载文件的请求转发到某脚本, 然后由这脚本决定怎么做：发送这个文件给用户，出现决绝访问页，或着其他的事。在lighttpd服务器里可以通过从脚本传回X-Sendfile头实现；而Nginx是通过使用X-Accel-Redirect头实现的。在这篇文章里我会尽量简捷地描述在php和rails里如何使用这一特性。
Ruby On Rails 网站开发感悟 - mulder的程序人生 - CSDNBlog
现在的 RoR 实在是太火了，大有大家同上一条船的架式，搞 RoR 的人以它为荣，以搞 Java 为耻，估计也能写出个八荣八耻。但是它只是一种技术，众多后台技术中的一种，网站的访问者并不会因为你使用了 RoR 就给你掏钱，甚至是留下个好印象。网站的内容是主要的，掌握了它并不意为着能制作一个好网站。常言说：拥有榔头并不意为着你就是个建筑师 ，也不能让满地都是钉子。要么你去给人敲钉子为生，或者指导别人如何敲钉子，再或者找到一个好木场自己建个房子。“去 RoR 化”可能是我要做的下一个工作，把前台用 Flash 重建，采用 RoR 的 builder view 技术来传递信息。我个人感觉这个音乐网站有个好的想法，不管它是否能挣钱。首先是音乐推荐的确能给人带来快乐，做这样的网站才有趣。技术应该是实现你想法的工具，如果网站成为技术的试验品，对我来说就没有什么意思了。