OAMessageFileUpLoadBean 从那里引入

  public void processRequest(OAPageContext pageContext, OAWebBean webBean)
  {
    super.processRequest(pageContext, webBean);
    OAApplicationModule am=pageContext.getApplicationModule(webBean);
    am.invokeMethod("createUpload");
    OAMessageFileUpLoadBean uploadBean=(OAMessageFileUpLoadBean)webBean.findChildRecursive("FileData");
    OADataBoundValueViewObject displayName=new OADataBoundValueViewObject(uploadBean,"FileName");
    System.out.print("displayName=="+displayName);
  }