在程序中.有些数据我们希望在程序启动的时候就准备好,而且仅仅准备一次,放在application作用域中,这时候.我们一般会用Listener来准备这些数据. 可是,用Listener准备application作用域的数据.在获取容器的时候会有一些注意事项. public class InitListener implements ServletContextListener { public void contextInitialized(ServletContextEvent sce) {
在ios8中,直接设置application badge value会出错 [[UIApplication sharedApplication] setApplicationIconBadgeNumber:count]; 曝出”Attempting to badge the application icon but haven't received permission from the user to badge the application“的错误. 原因是因为在ios8中,设置应用的ap
JSESSIONID is a cookie in J2EE web application which is used in session tracking. Since HTTP is a stateless protocol, we need to use any session to remember state. JSESSIONID cookie is created by web container and send along with response to client.
原创/朱季谦 首先,先提一个建议,在SpringBoot+Dubbo项目中,Dubbo配置注册中心设置的application命名name的值,最好使用xxx-xxx-xxx这样格式的,避免随便使用驼峰命名.因为使用驼峰命名法,在Spring的IOC容器当中,很可能会出现一些导致项目启动失败的坑,例如,会出现这样的异常报错: org.springframework.beans.factory.BeanCreationException: Error creating bean with name
还是和上节一样,首先来看下配置类:MainConfig2 @Configuration 名 public class MainConfig2 { @Scope("singleton") // 默认就是单实例的 @Bean("person") public Person person(){ System.out.println("给容器中添加Person...."); return new Person("张三", 25); }