WebInitializer.java 文件源码

@Override
public void onStartup(ServletContext servletContext)
        throws ServletException {
    AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
    ctx.register(MyMvcConfig.class);
    ctx.setServletContext(servletContext); // ②

    Dynamic servlet = servletContext.addServlet("dispatcher",new DispatcherServlet(ctx)); // 3
    servlet.addMapping("/");
    servlet.setLoadOnStartup(1);
}