请问在listener中调用service层的方法中遇到问题

[lc295240057]

public class SessionCounter implements HttpSessionListener {


//session创建时执行
@Override
public void sessionCreated(HttpSessionEvent se) {
}

//session销毁时执行
@Override
public void sessionDestroyed(HttpSessionEvent se) {
// System.out.println("+++++++++++++==========");
UserResult userResult = (UserResult) se.getSession().getAttribute("sessionResult");
System.out.println(userResult.getId());
ServletContext sc = se.getSession().getServletContext();
ApplicationContext applicationContext = WebApplicationContextUtils.getWebApplicationContext(sc);
// ApplicationContext applicationContext = WebApplicationContextUtils.getRequiredWebApplicationContext(sc);

LoginService loginService = applicationContext.getBean(LoginService.class);
loginService.exit(userResult);
}

}

这个是我百度如何在listener中调用service的方法是debug之后发现applicationContext 的值为null，执行System.out.println(userResult.getId())之后 ，不执行 loginService.exit(userResult)的方法，请问如何解决，我用的spring是注解方式

[李德胜1995]

报错没？？？LoginService可以从spring中得到吗？？？

[lc295240057]

不知道怎么就好使了。。。。。 @Component public class SessionCounter implements HttpSessionListener ,ApplicationContextAware { private static ApplicationContext applicationContext; public void setApplicationContext(ApplicationContext arg0) throws BeansException { applicationContext = arg0; } public static ApplicationContext getApplicationContext(){ return applicationContext; } //session创建时执行 @Override public void sessionCreated(HttpSessionEvent se) {} //session销毁时执行 @Override public void sessionDestroyed(HttpSessionEvent se) { UserResult userResult = (UserResult) se.getSession().getAttribute("sessionResult"); // ServletContext sc = se.getSession().getServletContext(); // applicationContext = WebApplicationContextUtils.getWebApplicationContext(sc);//applicationContext为null applicationContext=getApplicationContext(); LoginService loginService = applicationContext.getBean(LoginService.class); // LoginService loginService=new LoginServiceImpl(); //LoginDao为null loginService.exit(userResult); } }