java 代码上传

Action 类

 

 public ActionForward file(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response) {
  LoginForm loginForm = (LoginForm) form;
  FormFile file=loginForm.getMyfile();
  /*String type=file.getContentType();
  String name=file.getFileName();
  int size=file.getFileSize();*/
  //将上传的文件放到服务器中
  FileOutputStream fos=null;
  try {
   byte[] data=file.getFileData();
   ServletContext application=this.getServlet().getServletContext();
   String realPath=application.getRealPath("/Files/");
   String fileName=file.getFileName();
   System.out.println(fileName);
   System.out.println(realPath);
   fos=new FileOutputStream(realPath+"/"+fileName);
   fos.write(data);
   fos.flush();
   System.out.println("上传成功至"+realPath+"/"+fileName);
  } catch (Exception e) {
  
   e.printStackTrace();
  }finally{
   try {
    fos.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
  }
  
  return null;
 }

 

jsp页面：

 <form action="${pageContext.request.contextPath}/login.do?operate=file" method="post" enctype="multipart/form-data" acceptCharset="utf-8">
  <input type="file" name="myfile"/ value="浏览"/>
  <input type="submit" value="上传"/>
 </form>