189 8069 5689

SpringViewResolver-创新互联

Spring ViewResolver

创新互联专注于企业全网营销推广、网站重做改版、闽侯网站定制设计、自适应品牌网站建设、H5开发成都商城网站开发、集团公司官网建设、成都外贸网站制作、高端网站制作、响应式网页设计等建站业务,价格优惠性价比高,为闽侯等各大城市提供网站开发制作服务。

AbstractCachingViewResolver、XmlViewResolver、ResourceBundleViewResolver、UrlBasedViewResolver、InternalResourceViewResolver、VelocityViewResolver、FreeMarkerViewResolver
、ContentNegotiatingViewResolver

加载

org.springframework.web.servlet.view.ContentNegotiatingViewResolver

问题点:

   是不是所有的ViewResolver都是通过ContentNegotiatingViewResolver这个加载的 --> 不是

   ContentNegotiatingViewResolver起到的作用是什么

   只有一个jspView的时候会不会调用ContentNegotiatingViewResolver

private void initViewResolvers(ApplicationContext context) {
		this.viewResolvers = null;

		if (this.detectAllViewResolvers) {
			// Find all ViewResolvers in the ApplicationContext, including ancestor contexts.
			Map matchingBeans =
					BeanFactoryUtils.beansOfTypeIncludingAncestors(context, ViewResolver.class, true, false);
			if (!matchingBeans.isEmpty()) {
				this.viewResolvers = new ArrayList<>(matchingBeans.values());
				// We keep ViewResolvers in sorted order.
				AnnotationAwareOrderComparator.sort(this.viewResolvers);
			}
		}
		else {
			try {
				ViewResolver vr = context.getBean(VIEW_RESOLVER_BEAN_NAME, ViewResolver.class);
				this.viewResolvers = Collections.singletonList(vr);
			}
			catch (NoSuchBeanDefinitionException ex) {
				// Ignore, we'll add a default ViewResolver later.
			}
		}

		// Ensure we have at least one ViewResolver, by registering
		// a default ViewResolver if no other resolvers are found.
		if (this.viewResolvers == null) {
			this.viewResolvers = getDefaultStrategies(context, ViewResolver.class);
			if (logger.isDebugEnabled()) {
				logger.debug("No ViewResolvers found in servlet '" + getServletName() + "': using default");
			}
		}
	}

doDispatch

processDispatchResult

render:

	View view;
			if (mv.isReference()) {
				// We need to resolve the view name.
				view = resolveViewName(mv.getViewName(), mv.getModelInternal(), locale, request);
				if (view == null) {
					throw new ServletException("Could not resolve view with name '" + mv.getViewName() +
							"' in servlet with name '" + getServletName() + "'");
				}
			}
			else {
				// No need to lookup: the ModelAndView object contains the actual View object.
				view = mv.getView();
				if (view == null) {
					throw new ServletException("ModelAndView [" + mv + "] neither contains a view name nor a " +
							"View object in servlet with name '" + getServletName() + "'");
				}
			}

resolveViewName:

protected View resolveViewName(String viewName, Map model, Locale locale,
			HttpServletRequest request) throws Exception {

		for (ViewResolver viewResolver : this.viewResolvers) {
			View view = viewResolver.resolveViewName(viewName, locale);
			if (view != null) {
				return view;
			}
		}
		return null;
	}

创新互联www.cdcxhl.cn,专业提供香港、美国云服务器,动态BGP最优骨干路由自动选择,持续稳定高效的网络助力业务部署。公司持有工信部办法的idc、isp许可证, 机房独有T级流量清洗系统配攻击溯源,准确进行流量调度,确保服务器高可用性。佳节活动现已开启,新人活动云服务器买多久送多久。


分享标题:SpringViewResolver-创新互联
分享链接:http://jkwzsj.com/article/docigi.html

其他资讯