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1.编写listener
package com.cloudtech.listener;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
@WebListener
public class HelloListener implements ServletContextListener{
public void contextInitialized(ServletContextEvent sce) {
System.out.println("Listener init..............");
}
public void contextDestroyed(ServletContextEvent sce) {
}
}
2.编写启动类
package com.cloudtech;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
/**
* springboot启动类
* @ClassName: App
* @Description:
* @author wude
* @date 2018年12月6日
*
*/
@SpringBootApplication
@ServletComponentScan //在spring boot启动时，会扫描@webServlet,并将该类实例化
public class App2 {
public static void main(String[] args) {
SpringApplication.run(App2.class, args);
}
}
3.启动项目，观察控制台
