如果bean初始化失败，则停止spring Web应用程序 [英] stop the spring web application if a bean initialization fails

问题描述

我已经编写了一个customcontextloaderlistener，它在Web应用程序启动时被调用.

I have written a customcontextloaderlistener and it gets called when the web application starts up.

public class CustomContextLoaderListener  extends ContextLoaderListener {
    private Logger log = Logger.getLogger(CustomContextLoaderListener.class);

    public void contextInitialized(ServletContextEvent sce){

        WebApplicationContext wctx = new ContextLoader().initWebApplicationContext(sce.getServletContext());
        AppContext.setWebApplicationContext(wctx);
        wctx.getBeanDefinitionCount();
        String [] beanNames = wctx.getBeanDefinitionNames();
        for(String beanName : beanNames){
        log.info(beanName);
        }

现在，如果Bean初始化出错，我想停止Web应用程序.所以我想我可以做这样的事情.

Now if there is an error in bean initialization I would like to stop the web application. So I am thinking I can do something like this.

    public class CustomContextLoaderListener  extends ContextLoaderListener {
        private Logger log = Logger.getLogger(CustomContextLoaderListener.class);

        public void contextInitialized(ServletContextEvent sce){

try {
            WebApplicationContext wctx = new ContextLoader().initWebApplicationContext(sce.getServletContext());
            AppContext.setWebApplicationContext(wctx);
            wctx.getBeanDefinitionCount();
            String [] beanNames = wctx.getBeanDefinitionNames();
            for(String beanName : beanNames){
            log.info(beanName);
            }
}catch(Exception e) {
      contextDestroyed(sce)
 }

public void contextDestroyed(ServletContextEvent sce) {

// not sure how should I stop the web app here..

any ideas

}

推荐答案

您可以执行以下操作:

private void callExceptionHandler(Exception exception) {
    logger.error("failed to create bean: ", exception);
    System.exit(1);
}

您可以从contextInitialized方法调用上述方法:

You could call above method from contextInitialized method:

catch(Exception e) {
      callExceptionHandler(e)
 }

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