SpringMVC 源码流程

initWebApplicationContext(ServletContext servletContext)

WebApplicationContextspring-mvc2.xmlHelloV2Controller

 protected void initServletBean() throws ServletException {    }这是一个-空方法在子类实现

创建DispatcherServlet自己的spring容器

class ContextLoader

DispatcherServlet

this.initWebApplicationContext(event.getServletContext());

class FrameworkServlet

DispatcherServlet创建流程

将root容器，存入servletContext中，以被创建DispatcherServlet自己的spring容器时设置父子容器关联时使用

createWebApplicationContext(@Nullable WebApplicationContext parent)

class DispatcherServlet

  protected WebApplicationContext createWebApplicationContext(ServletContext sc) {        Class<?> contextClass = this.determineContextClass(sc); //取得子容器的类型        if (!ConfigurableWebApplicationContext.class.isAssignableFrom(contextClass)) {            throw new ApplicationContextException(\"Custom context class [\" + contextClass.getName() + \"] is not of type [\" + ConfigurableWebApplicationContext.class.getName() + \"]\");        } else {            return (ConfigurableWebApplicationContext)BeanUtils.instantiateClass(contextClass);        }    }

WebApplicationContextspring-mvc.xmlHelloController

class HttpServletBean

创建 root 容器

  if (wac == null) {            wac = this.createWebApplicationContext(rootContext);        }

   this.webApplicationContext = this.initWebApplicationContext();

读取web.xml中的contextConfigLocation 装入 <context:component-scan base-package=\"com.gok\

classFrameworkServlet

父容器

this.initServletBean();

子容器

ContextLoaderListenerroot容器创建流程

class ContextLoaderListener

HellerServiceImplHelloServiceImpl

返回根容器 return this.context;

contextInitialized(ServletContextEvent event)

  if (this.context == null) {                    this.context = this.createWebApplicationContext(servletContext);                }

initWebApplicationContext()

init