CommonWebInitializer.java 文件源码

private ServletRegistration.Dynamic addDispatcherServlet(ServletContext servletContext, String servletName,
                                                           Class<?>[] servletContextConfigClasses, boolean allowBeanDefinitionOverriding, String... mappings) {
    Assert.notNull(servletName);
    Assert.notEmpty(servletContextConfigClasses);
    Assert.notEmpty(mappings);

    AnnotationConfigWebApplicationContext servletApplicationContext = new AnnotationConfigWebApplicationContext();
    servletApplicationContext.setAllowBeanDefinitionOverriding(allowBeanDefinitionOverriding);
    servletApplicationContext.register(servletContextConfigClasses);

    ServletRegistration.Dynamic dispatcherServlet = servletContext.addServlet(servletName, new DispatcherServlet(servletApplicationContext));

    dispatcherServlet.setLoadOnStartup(1);
    dispatcherServlet.addMapping(mappings);

    return dispatcherServlet;
}