java - Thread.sleep另一个类

Question

我有一个类，它将值插入数据库(例如 insertdb.java)。但我只希望它们每隔一小时插入一次，因此经过一些研究和尝试不同的方法后，我尝试使用 Thread.sleep。如何使用 insertdb.java 类(而不是方法)实现此代码？预先感谢您的提示!

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class thread {
  public static void main(String[] args) {

    ScheduledExecutorService t = Executors.newSingleThreadScheduledExecutor();
    t.scheduleAtFixedRate(new Runnable() {
      @Override
      public void run() {
        try {
          Thread.sleep(3600000); }
            catch (Exception e) {}
            }
          }, 0, 1, TimeUnit.HOURS);
        }
     }

Answer 1

您可以将类 insertdb 设为成员字段，并调用 insert in run 方法。

示例代码:

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class ScheduleTask {

    static Insertdb insertdb;

    public ScheduleTask(Insertdb insertdb) {
        this.insertdb = insertdb;
    }

    public static void main(String[] args) {

        ScheduledExecutorService t = Executors.newSingleThreadScheduledExecutor();
        t.scheduleAtFixedRate(new Runnable() {
            @Override
            public void run() {
                try {
                    insertdb.insert();
                    Thread.sleep(3600000);
                } catch (Exception e) {
                }
            }
        }, 0, 1, TimeUnit.HOURS);
    }
}