JAVAÖ®"ÎļþÉÏ´«"

<form name="UploadForm" enctype="multipart/form-data" method="post" action="upLoadImage.do">
<input type="file" name="File1" size="11" maxlength="20"/><input type="submit"value="ÉÏ ´«"/>
</form>  
  String path="images\\product\\";
String temp=this.getServlet().getServletContext().getRealPath("/")+"temp"; //ÁÙʱĿ¼
String loadpath=this.getServlet().getServletContext().getRealPath("/")+path; //ÉÏ´«Îļþ´æ·ÅĿ¼

DiskFileUpload fu = new DiskFileUpload();
fu.setSizeMax(10*1024*1024); // ÉèÖÃÔÊÐíÓû§ÉÏ´«Îļþ´óС,µ¥Î»:×Ö½Ú
fu.setSizeThreshold(4096); // ÉèÖÃ×î¶àÖ»ÔÊÐíÔÚÄÚ´æÖд洢µÄÊý¾Ý,µ¥Î»:×Ö½Ú
fu.setRepositoryPath(temp); // ÉèÖÃÒ»µ©Îļþ´óС³¬¹ýgetSizeThreshold()µÄֵʱÊý¾Ý´æ·ÅÔÚÓ²Å̵ÄĿ¼

//¿ªÊ¼¶ÁÈ¡ÉÏ´«ÐÅÏ¢
List fileItems = fu.parseRequest(request);

System.out.println(fileItems.size());//Êä³öÉÏ´«ÎļþÐÅÏ¢


Iterator iter = fileItems.iterator(); // ÒÀ´Î´¦Àíÿ¸öÉÏ´«µÄÎļþ
while (iter.hasNext())
{
FileItem item = (FileItem) iter.next();// ºöÂÔÆäËû²»ÊÇÎļþÓòµÄËùÓÐ±íµ¥ÐÅÏ¢
if (!item.isFormField())
{
String name = item.getName();//»ñÈ¡ÉÏ´«ÎļþÃû,°üÀ¨Â·¾¶
name=name.substring(name.lastIndexOf("\\")+1);//´Óȫ·¾¶ÖÐÌáÈ¡ÎļþÃû
long size = item.getSize();
if((name==null||name.equals("")) && size==0){
request.setAttribute("uploadmessage","ÉÏ´«Í¼Æ¬Ê§°Ü!");
return mapping.findForward("product");
}
File fNew= new File(loadpath, name);
item.write(fNew);
request.setAttribute("uploadmessage","ÉÏ´«Í¼Æ¬³É¹¦!");
HttpSession session=request.getSession();
session.setAttribute("path",(path+fNew.getName()).replace("\\","/"));
System.out.println((path+fNew.getName()).replace("\\","/"));
}
}