Spring项目启动时初始化数据的两种方法

一

@Component
public class ServletContextInit implements ServletContextAware {

    
    @Override
    public void setServletContext(ServletContext servletContext) {
        TimeZone tz = TimeZone.getTimeZone("Asia/Shanghai");
        TimeZone.setDefault(tz);
        //初始化
        try {
           
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

二

@Slf4j
@Component
public class InitApplicationRunner implements ApplicationRunner {

    @Override
    public void run(ApplicationArguments applicationArguments) {
        log.info("-------------->" + "初始化开始，now=" + new Date());
        TimeZone tz = TimeZone.getTimeZone("Asia/Shanghai");
        TimeZone.setDefault(tz);
        initCache();
        log.info("-------------->" + "初始化结束，now=" + new Date());
    }

    private void initCache() {
        try {
            //初始化缓存、内存
        } catch (Exception e) {
            log.error("初始化失败！", e);
        }
    }

}