/** 详细 */
 @RequestMapping(
     value = "detail",
     method = {RequestMethod.GET, RequestMethod.POST})
 public String detail(ModelMap model, Long id) {
   MetaColumn metaColumn = metaColumnService.read(id);
   model.put("metaColumn", metaColumn);
   return "meta/column/detail";
 }
 /** 修改 */
 @RequestMapping(
     value = "update",
     method = {RequestMethod.GET})
 public String toUpdate(ModelMap model, Long id) {
   MetaColumn metaColumn = metaColumnService.read(id);
   model.put("metaColumn", metaColumn);
   return "meta/column/update";
 }