/** 查看 */
 public String view() {
   List<Attachment> attachments = attachmentManager.findAllBy("refId", this.message.getId());
   getRequest().setAttribute("attachments", attachments);
   String rs = this.message.getReceiver();
   String username = this.getCurrUser().getUserName();
   if (rs.equals(username)) {
     this.message.setState("1");
     if (message.getChackTime() == null) {
       this.message.setChackTime(new Date());
     }
     this.messageManager.update(this.message);
   }
   return VIEW_JSP;
 }