/**
  * 删除销售产品全部内容
  *
  * @author: ranlongfei 2012-8-2 下午2:36:32
  * @param pageId
  * @return
  */
 public int deleteViewContentByPageId(Long pageId) {
   ViewContent key = new ViewContent();
   key.setPageId(pageId);
   int rows = super.delete("VIEW_CONTENT.deleteByPageId", key);
   return rows;
 }