code: @Override
  	protected void renderMergedTemplateModel(Map<String, Object> model, HttpServletRequest request,
  			HttpServletResponse response) throws NoSuchBeanDefinitionException, NoUniqueBeanDefinitionException
  	{
  		// 如果未指定groupTemplate，取上下文中唯一的GroupTemplate对象
  		if (groupTemplate == null)
  		{
  			groupTemplate = getApplicationContext().getBean(GroupTemplate.class);
  		}
  
  		// 渲染方法
  		WebRender render = new WebRender(groupTemplate) {
  			@Override
  			protected void modifyTemplate(Template template, String key, HttpServletRequest request,
  					HttpServletResponse response, Object... args)
  			{
  				Map<?, ?> model = (Map<?, ?>) args[0];
  
  				for (Entry<?, ?> entry : model.entrySet())
  				{
  					String name = (String) entry.getKey();
  					Object value = entry.getValue();
  					template.binding(name, value);
  				}
  			}
  		};
  		String path = getUrl();
  		render.render(path, request, response, model);
  	}
docs: 渲染指定视图
  
  @param model
  @param request
  @param response
  @throws NoSuchBeanDefinitionException
  如果未设置GroupTemplate，且Spring上下文中也没有唯一的GroupTemplate bean
  @throws NoUniqueBeanDefinitionException
  如果未设置GroupTemplate，且Spring上下文中有多个GroupTemplate bean