Spring/SpringMVC在启动完成后执行方法

Spring/SpringMVC在启动完成后执行方法

在某些情况下,有可能你会有这种需求:在Spring/SpringMVC项目中,当Spring/SpringMVC启动完成后,你需要执行一个方法来完成某些事件(比如创建网站地图,比如从订阅Redis服务器等),这个时候,可以使用Tomcat/Servlet容器提供的事件回调机制来完成,但是这样有个问题是:无法使用Spring提供的Annotation,解决方法是:

/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */
package com.storezhang.web;

import com.storezhang.util.TimeUtils;
import com.storezhang.video.util.SiteMapUtils;
import java.util.Timer;
import java.util.TimerTask;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Service;

/** * 启动监听器 */
@Service
public class StartupListener implements ApplicationListener<ContextRefreshedEvent> {

    @Autowired
    private SiteMapUtils sites;

    @Override
    public void onApplicationEvent(ContextRefreshedEvent evt) {
        if (evt.getApplicationContext().getParent() == null) {
            createSitemap();
        }
    }

    private void createSitemap() {
        Timer timer = new Timer("createSitemap", true);
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                System.out.println("--->Create sitemap...");
                sites.createSiteMap();
                System.out.println("--->Success create sitemap...");
            }
        }, 1 * TimeUtils.MIN);
    }
}

 

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