MultipartHttpServletRequest re=(MultipartHttpServletRequest)request;
//转换request为MultipartHttpServletRequest
Map map=re.getFile();
//key 是input框中的 name 属性 value 得到的MultipartFile对象
List filelist =new ArrayList();
for( Object obj :map.values()){
MultipartFile file=(MultipartFile)obj;
fileList.add(file);
}
//对 文 件做一些过滤 例如 上传文件的类型
//对文件名的修改 等等 都
开始上传
if(filelist.size()>0){
for(int i=0; i<filelist.size();i++){
MultipartFile fj=filelist.get(i);
File uploadfujian =newFile(Constant.FILE_UPLOAD_LENDINGORDERDETAIL_FOLDER+"\\"+lendingOrder.getBczcdh());//构件一个上传路径
if(!uploadfujian.exists()){
uploadfujian.mkdir();//如果构件文件路径不存在 则创建一个
}
String fujianpath=uploadfujian+"\\"+fj.getOriginalFilename();//附件if(fj!=null&&!fj.getOriginalFilename().trim().equals("")){
FileOutputStream outfujian = new FileOutputStream(fujianpath);
FileCopyUtils.copy(fj.getBytes(), outfujian);//上传代码
outfujian.close(); }}}
文件下载
从页面传一个文件名字 或许路径
href=\"lendingorder.do? action=download&fileName="+request.getAttribute("bczcdh")+"\\"+filenames.get(<a i)+"\"/>"+filenames.get(i)+"</a>");
请求的action 代码
@RequestMapping(params="action=download")
public String downLoad(HttpServletRequest request)
{String file=request.getParameter("fileName");
request.setAttribute("filename",Constant.FILE_UPLOAD_LENDINGORDERDETAIL_FOLDER+"\\"+file);
return "common/downloadfile";
}
Downloadfile.Jsp 内容为:
<%@page import="com.jspsmart.upload.SmartUpload"%><%@ page contentType="text/html;charset=UTF-8"%>
<% String f = (String)request.getAttribute("filename");
com.jspsmart.upload.SmartUpload su = new com.jspsmart.upload.SmartUpload();
su.initialize(pageContext);
su.setContentDisposition(null);
su.downloadFile(f);
out.clear();
out=pageContext.pushBody();
%>