1 建立页面
<form action="" name="form1"  enctype="multipart/form-data" method="post">
2 建ActionForm类
private String title;
private FormFile file;//必须用apache的FormFile类(org.apache.struts.upload.FormFile)
3 建立Action类
UplodaActionForm uaf=(UplodaActionForm)form;
Systyem.out.println("title:"+uaf.getTitle());
FormFile file=uaf.getFile();
if(file!=null)
{
 System.out.println("fileName:"+file.getFileName());
 FileOutputStream fos=new FileOutputStream("c:\\"+file.getFileName());
 fos.write(file.getFileData());
 fos.flush();
 fos.close();
}
return mapping.findForward("sessucc");
4 配置ActionForm和Action
<controller MaxFileSize="10M"></controller>该属性可以配置上传文件的大小等相关信息