ApplicationBootingInitializer.java 文件源码

public void initialize(ApplicationContext applicationContext) throws Exception {
    logger.info(">>> 初始化应用中不依赖于Servlet环境的系统常量!");
    ApplicationContext rootApplicationContext = applicationContext;
    if(applicationContext instanceof WebApplicationContext && applicationContext.getParent() != null){//如果当前applicationContext是容器环境下SpringMVC Application上下文 
        rootApplicationContext = applicationContext.getParent();
    }
    setFinalFieldValue(ApplicationConstants.class, "APPLICATION_CONTEXT", rootApplicationContext);
    SpringUtils.setApplicationContext(rootApplicationContext);
    try {
        Messages.setMessageSource(rootApplicationContext.getBean(AbstractMessageSource.class));
    } catch (Exception e) {
        logger.error(e.getMessage());
    }
}