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FTP mget 批量下载跳过交互.md
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FTP mget 批量下载跳过交互.md
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### FTP mget 批量下载跳过交互
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默认情况下ftp里面的交互式提示是开启的,平常如果是下载多个文件时,这种提示很让人烦,
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如果是在shell脚本里面要从ftp服务器上一次mget多个文件,写个交互式脚本很麻烦.最好是把这个交互式提示关掉.
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进入ftp命令后,prompt会将交互式提示的配置置反,
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如果原先交互式提示是开着的,
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则使用prompt之后就关闭,如果原先是关闭的,
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则使用prompt后就打开.
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当然也可以直接加参数如prompt on或者prompt off.
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2759
Spark知识体系五万字讲解,学习与面试收藏这篇就够了!.md
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2759
Spark知识体系五万字讲解,学习与面试收藏这篇就够了!.md
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Load Diff
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java/springboot-事件.md
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java/springboot-事件.md
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## springboot事件
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#### 事务本身
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实现 ApplicationEvent 类
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```java
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@Getter
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public static class SchSyncToUpcomingEndEvent extends ApplicationEvent {
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public SchSyncToUpcomingEndEvent(Object source) {
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super(source);
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}
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}
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```
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#### 事务发布
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```java
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applicationEventPublisher.publishEvent()
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applicationEventMulticaster.multicastEvent()
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```
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#### 注解接收事件
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默认同步处理 需要异步处理 添加@Async 注解
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```
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/**
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* 监听 SCH 同步至航班计划完成事件。
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* 开始 航班计划同步至算法
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*
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* @param event
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*/
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@Async
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@EventListener(FlightPlanEvent.SchSyncToUpcomingEndEvent.class)
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public void syncCurrentStatusToAlgListener(FlightPlanEvent.SchSyncToUpcomingEndEvent event) {
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XxlJobHelper.log("同步当前航班状态至算法 开始");
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XxlJobHelper.log("同步当前航班状态至算法 结束");
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}
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```
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#### 编程式接收事务
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监听器
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```java
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@Component
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@Slf4j
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public class EventListener implements ApplicationListener<CustomEvent>{
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@Override
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public void onApplicationEvent(CustomEvent event) {
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//这里也可以监听所有事件 使用 ApplicationEvent 类即可
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//这里仅仅监听自定义事件 CustomEvent
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log.info("ApplicationListener方式监听事件:{}", event);
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}
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}
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```
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注册监听器
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```java
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@SpringBootApplication
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public class Application {
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public static void main(String[] args){
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SpringApplication app =new SpringApplication(Application.class);
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app.addListeners(new MyApplicationStartingEventListener());//加入自定义的监听类
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app.run(args);
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}
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}
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```
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#### 事务事件
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需要等 事务发布者的事务完成提交 才能接收到事件
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事务事件 只能接收一次
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```
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@Async
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@TransactionalEventListener(value = FlightPlanEvent.SchSyncToUpcomingEndEvent.class, phase = TransactionPhase.AFTER_COMMIT)
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public void syncBaseDataUpdateListener(FlightPlanEvent.SchSyncToUpcomingEndEvent event) {
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syncBaseData();
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syncSchRouteToRedis();
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}
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```
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