2023年1月到福岡旅行，發現日本雖然開放了國門迎接觀光客，但其實周邊配套包括商店商放、服務人員數量等都還沒跟上入境日本的旅客。 福岡機場的免稅店也是如此，未全部回到2019的狀態，但是如果只是要買些辦手禮，機場還是買得到，大概簡略介紹一下目前 (2023/1)的福岡機場免稅店有賣的東西。

 

福岡機場圖為以下，出海關後正對面就是中央免稅店，從中央免稅店走到北免稅店很近(下圖紅框部分是中央店，從北邊看過去的感覺)，大概3分鐘。鋪量我覺得中央免稅店多一點，例如小叮噹版本的東京芭娜娜北邊就缺貨。

來源：福岡機場官網

 

 

中央免稅店整體來說正常營業中，貨量算是已經都準備好了。

合併多個相同物件內的List物件 物件設定

@Data
public class TestTOB {
  private List type;

  public static class Sel {
    private String key;
    private String val;

    /**
     * @param a
     * @param b
     */
    public Sel(String key, String val) {

      super();
      this.key = key;
      this.val = val;
    }

    @Override
    public String toString() {

      StringBuilder builder = new StringBuilder();
      builder.append("Sel [key=").append(key).append(", val=").append(val).append("]");
      return builder.toString();
    }

  }
}

用flatMap將TestTOB內的List轉換成個別扁平流，再透過collect結合

  @Test
  public void flatMapTest() throws Exception {
    List a= new ArrayList<>();
    
    TestTOB qq = new TestTOB();
    qq.setType(Collections.singletonList(new TestTOB.Sel("a","1")));
    a.add(qq);
    
    qq = new TestTOB();
    qq.setType(Collections.singletonList(new TestTOB.Sel("b","2")));
    a.add(qq);
    
    qq = new TestTOB();
    qq.setType(Collections.singletonList(new TestTOB.Sel("c","3")));
    a.add(qq);
    
    List c = a.stream()
        .flatMap(o -> o.getType().stream())
        .collect(Collectors.toList());
    
    c.stream().forEach(o->System.out.println(o.toString()));

  }
  
//Sel [key=a, val=1]
//Sel [key=b, val=2]
//Sel [key=c, val=3]

使用ThreadPoolTaskScheduler.schedule會因為任務執行的時間超過觸發器間隔，而延後後序排程時間。

以下程式RUN出來會發現

public String scheduleTask() {

    Runnable task = () -> {

      System.out.println(Thread.currentThread().getName() + "-Scheduled task started at: " + new Date());

      try {
        Thread.sleep(10000);
      } catch (InterruptedException e) {
        e.printStackTrace();
      }

      System.out.println(Thread.currentThread().getName() + "-Scheduled task resumed at: " + new Date());
    };

    taskScheduler.schedule(task, new CronTrigger("0/5 * * * * *"));

    return "Schedule task triggered successfully!";
  }
  
  
//    Task-Scheduled-1-Scheduled task started at: Wed Jul 12 15:30:10 CST 2023
//    Task-Scheduled-1-Scheduled task resumed at: Wed Jul 12 15:30:20 CST 2023
//    Task-Scheduled-2-Scheduled task started at: Wed Jul 12 15:30:25 CST 2023
//    Task-Scheduled-2-Scheduled task resumed at: Wed Jul 12 15:30:35 CST 2023
//    Task-Scheduled-1-Scheduled task started at: Wed Jul 12 15:30:40 CST 2023
//    Task-Scheduled-1-Scheduled task resumed at: Wed Jul 12 15:30:50 CST 2023

如果不希望等待前一個排程作業結束，希望時間到就執行可以加入CompletableFuture.runAsync

public String scheduleTask2() {

    Runnable task = () -> {
      
      CompletableFuture.runAsync(() -> {

        System.out.println(Thread.currentThread().getName() + "-Scheduled task started at: " + new Date());

        try {
          Thread.sleep(10000);
        } catch (InterruptedException e) {
          e.printStackTrace();
        }

        System.out.println(Thread.currentThread().getName() + "-Scheduled task resumed at: " + new Date());
      });

    };

    taskScheduler.schedule(task, new CronTrigger("0/5 * * * * *"));
    
//    ForkJoinPool.commonPool-worker-1-Scheduled task started at: Wed Jul 12 15:33:15 CST 2023
//    ForkJoinPool.commonPool-worker-2-Scheduled task started at: Wed Jul 12 15:33:20 CST 2023
//    ForkJoinPool.commonPool-worker-3-Scheduled task started at: Wed Jul 12 15:33:25 CST 2023
//    ForkJoinPool.commonPool-worker-1-Scheduled task resumed at: Wed Jul 12 15:33:25 CST 2023
//    ForkJoinPool.commonPool-worker-1-Scheduled task started at: Wed Jul 12 15:33:30 CST 2023
//    ForkJoinPool.commonPool-worker-2-Scheduled task resumed at: Wed Jul 12 15:33:30 CST 2023
//    ForkJoinPool.commonPool-worker-2-Scheduled task started at: Wed Jul 12 15:33:35 CST 2023
//    ForkJoinPool.commonPool-worker-3-Scheduled task resumed at: Wed Jul 12 15:33:35 CST 2023

    return "Schedule task triggered successfully!";
  }

在二月的時候買了星宇航空要去東京賞櫻，結果櫻花提前開，只好退票重買機票，就剛好親身走了一次很不友善的星宇航空票務逆流程。

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