文件上传，ajaxfileupload.js，简单明了，代码逻辑清晰-php file upload, ajaxfileupload.js, simple, clear logic code

使用struts 2 和ajaxFileUpload组件实现图片上传预览，直接在myeclipse和tomcat环境下就可以运行，同时附带了相应的实现说明。-Using struts 2 and ajaxFileUpload components to achieve image upload preview, directly in myeclipse and tomcat environment can run simultaneously with the corresponding im

Ajax上传插件，用于前台上传图片处理。-Ajax upload plugin