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@Component
public class AfterContextReady implements ApplicationListener<ContextRefreshedEvent> {
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
//root application context 没有parent,他就是老大.
if(event.getApplicationContext().getParent() == null)
{
//需要执行的逻辑代码,当spring容器初始化完成后就会执行该方法。
ApplicationContextUtil.removeBean("errorDealControllerExtra");
}
}
}
@Component
public class ApplicationContextUtil implements ApplicationContextAware
{
private static ApplicationContext applicationContext = null;
/** Creates a new instance of ApplicationContextUtil */
public ApplicationContextUtil()
{
}
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException
{
this.applicationContext = applicationContext;
}
public static ApplicationContext getApplicationContext()
{
return applicationContext;
}
public static Object getBean(String name)
{
return applicationContext.getBean(name);
}
@SuppressWarnings("unchecked")
public static <T> T getBeanByName(String name) throws BeansException {
return (T) applicationContext.getBean(name);
}
public static DefaultListableBeanFactory getBeanFactory(){
return (DefaultListableBeanFactory)applicationContext.getAutowireCapableBeanFactory();
}
public static Map<String, Object> getClassByAnnotation(Class name){
return applicationContext.getBeansWithAnnotation(name);
}
public static void removeBean(String beanName){
DefaultListableBeanFactory factory = getBeanFactory();
if (factory.containsBean(beanName)) {
factory.removeBeanDefinition(beanName);
}
}
}
@Controller
@RequestMapping({"/errorDeal"})
public class ErrorDealControllerExtra {
@ResponseBody
@RequestMapping("/dealPdfList")
public String dealPdfList(HttpServletRequest request) {
"访问成功!";
}
}