upload.parseRequest(request)为空

使用common-fileUpload制作文件上传(DiskFileItemFactory方式)  

开发环境：spring

所需包：commons-fileupload-1.2.1.jar和commons-io-1.3.2.jar 

下载地址：http://www.apache.org/commons/

 DiskFileItemFactory factory = new DiskFileItemFactory();   

ServletFileUpload upload = new ServletFileUpload(factory);  

upload.setHeaderEncoding(encoding);  

List<FileItem> items = upload.parseRequest(request)

用common-fileupload组件进行文件上传，但是获得items.size()为0

使用DiskFileItemFactory 及ServletFileUpload 组件进行上传
需要注意的是：不需要在springmvc-servlet.xml里配置：<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />

http://zhanghouyin-hotmail-com.iteye.com/blog/1179231