Spring中的service之间如何调用

public class ConfigLoadListener implements ServletContextListener {

    public void contextInitialized(ServletContextEvent contextEvent) {  
        try {
            WebApplicationContext context =WebApplicationContextUtils.getRequiredWebApplicationContext(contextEvent.getServletContext());
            AppContext.setApplicationContext(context);

            //读配置
            try {
                ServletContext context2=contextEvent.getServletContext();
                String path=context2.getInitParameter("setting.properties");
                InputStream in =context2.getResourceAsStream(path);
                Properties properties = new Properties();
                properties.load(in);
                GlobalConstant.setCmdbProperties(properties);
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } catch (HibernateException e) {
            System.out.println("系统无法初始化,异常退出");
            System.out.println(e);
        }
    }
   
    public void contextDestroyed(ServletContextEvent contextEvent) {
    }
}
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