vip21-springMvc/day04/src/main/java/com/lovecoding/mvc/Application.java

package com.lovecoding.mvc;

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.XmlWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;

public class Application implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        System.out.println( "我被调用了！！！" );

        XmlWebApplicationContext applicationContext = new XmlWebApplicationContext();

        applicationContext.setConfigLocation("classpath:spring.xml");

        DispatcherServlet dispatcherServlet = new DispatcherServlet(applicationContext);

        ServletRegistration.Dynamic dispatcher =
                servletContext.addServlet("dispatcher", dispatcherServlet);

        dispatcher.setLoadOnStartup(1);
        dispatcher.addMapping("/");

    }

}