1.在基于 Spring 的 web 项目中,我们可以随时随地获取到当前请求,获取方式就是下面给出的代码:

HttpServletRequest req = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
        String code = req.getParameter("code");

 2.spring项目一启动就加载某些操作的代码示例:

@Component
public class DicCacheManage implements ApplicationContextAware {
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        log.info("=======开始加载字典缓存======");
        DicMap.initDicts(applicationContext);
        log.info("=======结束加载字典缓存======");
    }
}

  

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