说在前面

本次主要介绍springmvc配置解析。

springmvc配置解析

本次介绍MvcNamespaceHandler。

进入到这个方法org.springframework.web.servlet.config.ViewResolversBeanDefinitionParser#parse

public BeanDefinition parse(Element element, ParserContext context) {      Object source = context.extractSource(element);      context.pushContainingComponent(new CompositeComponentDefinition(element.getTagName(), source));      ManagedList

进入到这个方法org.springframework.web.servlet.config.ViewResolversBeanDefinitionParser#addUrlBasedViewResolverProperties

private void addUrlBasedViewResolverProperties(Element element, RootBeanDefinition beanDefinition) {   if (element.hasAttribute("prefix")) {      beanDefinition.getPropertyValues().add("prefix", element.getAttribute("prefix"));   }   if (element.hasAttribute("suffix")) {      beanDefinition.getPropertyValues().add("suffix", element.getAttribute("suffix"));   }   if (element.hasAttribute("cache-views")) {      beanDefinition.getPropertyValues().add("cache", element.getAttribute("cache-views"));   }   if (element.hasAttribute("view-class")) {      beanDefinition.getPropertyValues().add("viewClass", element.getAttribute("view-class"));   }   if (element.hasAttribute("view-names")) {      beanDefinition.getPropertyValues().add("viewNames", element.getAttribute("view-names"));   }}

往上返回到这个方法org.springframework.web.servlet.config.ViewResolversBeanDefinitionParser#createContentNegotiatingViewResolver

private BeanDefinition createContentNegotiatingViewResolver(Element resolverElement, ParserContext context) {//    注册ContentNegotiatingViewResolver bean定义      RootBeanDefinition beanDef = new RootBeanDefinition(ContentNegotiatingViewResolver.class);      beanDef.setSource(context.extractSource(resolverElement));      beanDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);      MutablePropertyValues values = beanDef.getPropertyValues();//    默认视图      List
    
      elements = DomUtils.getChildElementsByTagName(resolverElement, "default-views");      if (!elements.isEmpty()) {         ManagedList
     
    

进入到这个方法org.springframework.web.servlet.config.MvcNamespaceUtils#getContentNegotiationManager

public static Object getContentNegotiationManager(ParserContext context) {      String name = AnnotationDrivenBeanDefinitionParser.HANDLER_MAPPING_BEAN_NAME;      if (context.getRegistry().containsBeanDefinition(name)) {         BeanDefinition handlerMappingBeanDef = context.getRegistry().getBeanDefinition(name);//       从RequestMappingHandlerMapping bean定义中获取         return handlerMappingBeanDef.getPropertyValues().get("contentNegotiationManager");      }      name = AnnotationDrivenBeanDefinitionParser.CONTENT_NEGOTIATION_MANAGER_BEAN_NAME;      if (context.getRegistry().containsBeanDefinition(name)) {         return new RuntimeBeanReference(name);      }      return null;   }

往上返回到这个方法org.springframework.web.servlet.config.ViewResolversBeanDefinitionParser#parse

说到最后

本次源码解析仅代表个人观点，仅供参考。