spring无web.xml零配置

package com.vsked.config; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.ServletRegistration; import org.springframework.web.WebApplicationInitializer; import org.springframework.web.context.ContextLoaderListener; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.AnnotationConfigWebApplicationContext; import org.springframework.web.servlet.DispatcherServlet; public class AppInitializer implements WebApplicationInitializer { public void onStartup(ServletContext servletContext) throws ServletException { WebApplicationContext context = getContext(); servletContext.addListener(new ContextLoaderListener(context)); ServletRegistration.Dynamic dispatcher = servletContext.addServlet("DispatcherServlet", new DispatcherServlet(context)); dispatcher.setLoadOnStartup(1); dispatcher.addMapping("/*"); } private AnnotationConfigWebApplicationContext getContext() { AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext(); context.setConfigLocation("com.vsked.config"); return context; } }