public AopProxy createAopProxy(AdvisedSupport config) throws AopConfigException {
 
 
        //如果XML打开了优化开关，或者设置为了代理目标类，或者目前类没有接口
        if (config.isOptimize() || config.isProxyTargetClass() || hasNoUserSuppliedProxyInterfaces(config)) {
            Class<?> targetClass = config.getTargetClass();
            if (targetClass == null) {
                throw new AopConfigException("TargetSource cannot determine target class: " +
                        "Either an interface or a target is required for proxy creation.");
            }
 
            //如果有接口，或者通过Proxy.newProxyInstance生成的，则使用jdk动态代理
            if (targetClass.isInterface() || Proxy.isProxyClass(targetClass)) {
                return new JdkDynamicAopProxy(config);
            }
 
            //使用cglib
            return new ObjenesisCglibAopProxy(config);
        }
        else {
            //使用jdk动态代理
            return new JdkDynamicAopProxy(config);
        }
    }

protected void initStrategies(ApplicationContext context) {
    //初始化文件上传处理类
        initMultipartResolver(context);
    //初始化本地化Resolver
        initLocaleResolver(context);
    //初始化主题Resolver
        initThemeResolver(context);
    //初始化一些个预处理的HandlerMappings
        initHandlerMappings(context);
    //
        initHandlerAdapters(context);
    //初始化异常处理的handler
        initHandlerExceptionResolvers(context);
    //初始化请求路径转换为ViewName 的Translator
        initRequestToViewNameTranslator(context);
  //初始化ViewResolvers 这个就是针对视图处理的Resolvers 比如jsp处理Resolvers 或者freemarker处理Resolvers
        initViewResolvers(context);
    //初始化 主要管理flashmap，比如RedirectAttributes 的属性会放到这个里面，默认使用的是SessionFlashMapManager
        initFlashMapManager(context);
    }

/**
 * Initialize the HandlerMappings used by this class.
 * <p>If no HandlerMapping beans are defined in the BeanFactory for this namespace,
 * we default to BeanNameUrlHandlerMapping.
 */
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.
            OrderComparator.sort(this.handlerMappings);
        }
    }
    else {
        try {
            HandlerMapping hm = context.getBean(HANDLER_MAPPING_BEAN_NAME, HandlerMapping.class);
            this.handlerMappings = Collections.singletonList(hm);
        }
        catch (NoSuchBeanDefinitionException ex) {
            // Ignore, we'll add a default HandlerMapping later.
        }
    }
 
    // Ensure we have at least one HandlerMapping, by registering
    // a default HandlerMapping if no other mappings are found.
    if (this.handlerMappings == null) {
        this.handlerMappings = getDefaultStrategies(context, HandlerMapping.class);
        if (logger.isDebugEnabled()) {
            logger.debug("No HandlerMappings found in servlet '" + getServletName() + "': using default");
        }
    }
}

/**
     * 请求的分发工作
     * @param request
     * @param response
     */
    private void doDispatch(HttpServletRequest request, HttpServletResponse response) {
      //1.获取用户请求的url
      String uri =   request.getRequestURI();
      Handler handler =null;
 
      ////2、根据uri 去handlerMapping找到对应的hanler
      for(Handler h :handlerMapping){
          if(uri.equals(h.getUrl())){
              handler = h;
              break;
          }
      }
      //3.将具体的任务分发给Method（通过反射去调用其对应的方法）
        Object obj = null;
        try {
            obj =  handler.getMethod().invoke(handler.getController(),request.getParameter("mid"));
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
        //4、获取到Method执行的结果，通过Response返回出去
        // response.getWriter().write();
 
    }