spring debug

DispatcherServlet{

getHandler()
}
handlerMappings{
RequestMappingHandlerMapping
BeanNameUrlHandlerMapping
WebMvcConfigurationSupport
}

BeanNameUrlHandlerMapping{
determineUrlsForHandler() //加断点 可知 urlmapping有没有正确
}

RequestMappingHandlerMapping{
createRequestMappingInfo() //url成功了才到这
}

RequestMappingHandlerAdapter {
handleInternal  //加断点 
}
SimpleControllerHandlerAdapter,
SimplePortletHandlerAdapter

检查handlerMappings 在以下代码 启动时断点

private void initHandlerMappings(ApplicationContext context) {
this.handlerMappings = null;

if (this.detectAllHandlerMappings) {
// Find all HandlerMappings in the ApplicationContext, including ancestor contexts.
Map<String, HandlerMapping> matchingBeans =
BeanFactoryUtils.beansOfTypeIncludingAncestors(context, HandlerMapping.class, true, false);
if (!matchingBeans.isEmpty()) {
this.handlerMappings = new ArrayList<HandlerMapping>(matchingBeans.values());
// We keep HandlerMappings in sorted order.
AnnotationAwareOrderComparator.sort(this.handlerMappings);
}
}

 

BeanNameUrlHandlerMapping{
determineUrlsForHandler
}
RequestMappingHandlerMapping 以前的DefaultAnnotationHandlerMapping

AbstractHandlerMapping{
getHandler  真正作urlmatch
}

AbstractHandlerMethodMapping｛
getHandlerInternal

protected HandlerMethod lookupHandlerMethod(String lookupPath, HttpServletRequest request) throws Exception {
List<Match> matches = new ArrayList<Match>();
List<T> directPathMatches = this.mappingRegistry.getMappingsByUrl(lookupPath);
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