@RequestMapping(value = "/toEdit")
 public ModelAndView toEdit() {
   logBefore(logger, "去修改Textmsg页面");
   ModelAndView mv = this.getModelAndView();
   PageData pd = new PageData();
   pd = this.getPageData();
   try {
     pd = weixinTextMsgService.findById(pd); // 根据ID读取
     mv.setViewName("weixin/textmsg/textmsg_edit");
     mv.addObject("msg", "edit");
     mv.addObject("pd", pd);
   } catch (Exception e) {
     logger.error(e.toString(), e);
   }
   return mv;
 }