Java監控文件夾下文件/文件夾增刪改查

導入htools包

<dependency>
	<groupId>cn.hutool</groupId>
	<artifactId>hutool-all</artifactId>
	<version>5.8.4</version>
</dependency>

代碼

package com.godfrey;

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.io.watch.SimpleWatcher;
import cn.hutool.core.io.watch.WatchMonitor;
import cn.hutool.core.lang.Console;

import java.io.File;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.WatchEvent;

/**
 * @author godfrey
 * @since 2022-07-05
 */
public class Main {
    public static void main(String[] args) throws IOException {
        File file = FileUtil.file("D:\\study");

        WatchMonitor.createAll(file, new SimpleWatcher() {
            @Override
            public void onCreate(WatchEvent<?> event, Path currentPath) {
                Object obj = event.context();
                Console.log("創建：{}-> {}", currentPath, obj);
            }

            @Override
            public void onModify(WatchEvent<?> event, Path currentPath) {
                Object obj = event.context();
                Console.log("修改：{}-> {}", currentPath, obj);
            }

            @Override
            public void onDelete(WatchEvent<?> event, Path currentPath) {
                Object obj = event.context();
                Console.log("刪除：{}-> {}", currentPath, obj);
            }
        }).start();
    }
}