AppInitializer.java

package com.sishuok.spring4;

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.filter.CharacterEncodingFilter;
import org.springframework.web.servlet.DispatcherServlet;

import javax.servlet.DispatcherType;
import javax.servlet.FilterRegistration;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
import java.util.EnumSet;

/**
 * <p>User: Zhang Kaitao
 * <p>Date: 13-12-17
 * <p>Version: 1.0
 */
public class AppInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(javax.servlet.ServletContext sc) throws ServletException {

//        AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
//        rootContext.register(AppConfig.class);
//        sc.addListener(new ContextLoaderListener(rootContext));

        //2、springmvc上下文
        AnnotationConfigWebApplicationContext springMvcContext = new AnnotationConfigWebApplicationContext();
        springMvcContext.register(MvcConfiguration.class);
        //3、DispatcherServlet
        DispatcherServlet dispatcherServlet = new DispatcherServlet(springMvcContext);
        ServletRegistration.Dynamic dynamic = sc.addServlet("dispatcherServlet", dispatcherServlet);
        dynamic.setLoadOnStartup(1);
        dynamic.addMapping("/");

        //4、CharacterEncodingFilter
        FilterRegistration filterRegistration =
                sc.addFilter("characterEncodingFilter", CharacterEncodingFilter.class);
        filterRegistration.addMappingForUrlPatterns(EnumSet.of(DispatcherType.REQUEST), false, "/*");


    }
}