试图加入文件监听功能

pom.xml

@@ -142,6 +142,11 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-security</artifactId>
         </dependency>-->
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>20030203.000550</version>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/com/yutou/nas/FileListener/FileListener.java

@@ -0,0 +1,63 @@
+package com.yutou.nas.FileListener;
+
+import com.yutou.nas.Services.IMusicToolsService;
+import org.apache.commons.io.monitor.FileAlterationListenerAdaptor;
+import org.apache.commons.io.monitor.FileAlterationObserver;
+
+import java.io.File;
+
+public class FileListener extends FileAlterationListenerAdaptor {
+    private IMusicToolsService musicToolsService;
+    // 采用构造函数注入服务
+    public FileListener( IMusicToolsService musicToolsService) {
+        this.musicToolsService=musicToolsService;
+    }
+
+    // 文件创建执行
+    @Override
+    public void onFileCreate(File file) {
+        musicToolsService.addMusic(file);
+
+    }
+
+    // 文件创建修改
+    @Override
+    public void onFileChange(File file) {
+        // 触发业务
+        musicToolsService.addMusic(file);
+    }
+
+    // 文件创建删除
+    @Override
+    public void onFileDelete(File file) {
+        musicToolsService.delMusic(file);
+    }
+
+    // 目录创建
+    @Override
+    public void onDirectoryCreate(File directory) {
+    }
+
+    // 目录修改
+    @Override
+    public void onDirectoryChange(File directory) {
+    }
+
+    // 目录删除
+    @Override
+    public void onDirectoryDelete(File directory) {
+    }
+
+
+    // 轮询开始
+    @Override
+    public void onStart(FileAlterationObserver observer) {
+        super.onStart(observer);
+    }
+
+    // 轮询结束
+    @Override
+    public void onStop(FileAlterationObserver observer) {
+        super.onStop(observer);
+    }
+}

src/main/java/com/yutou/nas/FileListener/FileListenerFactory.java

@@ -0,0 +1,47 @@
+package com.yutou.nas.FileListener;
+
+import com.yutou.nas.Services.IMusicToolsService;
+import org.apache.commons.io.filefilter.FileFilterUtils;
+import org.apache.commons.io.filefilter.HiddenFileFilter;
+import org.apache.commons.io.filefilter.IOFileFilter;
+import org.apache.commons.io.monitor.FileAlterationMonitor;
+import org.apache.commons.io.monitor.FileAlterationObserver;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+import java.io.File;
+import java.util.concurrent.TimeUnit;
+
+@Component
+public class FileListenerFactory {
+    // 设置监听路径
+    private final String monitorDir = "/media/yutou/disk_lvm/public/音乐";
+
+    // 设置轮询间隔
+    private final long interval = TimeUnit.SECONDS.toMillis(1);
+
+    @Resource
+    IMusicToolsService musicToolsService;
+
+
+    public FileAlterationMonitor getMonitor() {
+        // 创建过滤器
+        IOFileFilter directories = FileFilterUtils.and(
+                FileFilterUtils.directoryFileFilter(),
+                HiddenFileFilter.VISIBLE);
+        IOFileFilter files = FileFilterUtils.and(
+                FileFilterUtils.fileFileFilter()
+                );
+        IOFileFilter filter = FileFilterUtils.or(directories, files);
+
+        // 装配过滤器
+        // FileAlterationObserver observer = new FileAlterationObserver(new File(monitorDir));
+        FileAlterationObserver observer = new FileAlterationObserver(new File(monitorDir), filter);
+
+        // 向监听者添加监听器，并注入业务服务
+        observer.addListener(new FileListener(musicToolsService));
+
+        // 返回监听者
+        return new FileAlterationMonitor(interval, observer);
+    }
+}

src/main/java/com/yutou/nas/FileListener/FileListenerRunner.java

@@ -0,0 +1,22 @@
+package com.yutou.nas.FileListener;
+
+import org.apache.commons.io.monitor.FileAlterationMonitor;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+
+@Component
+public class FileListenerRunner implements CommandLineRunner {
+    @Resource
+    private FileListenerFactory fileListenerFactory;
+    @Override
+    public void run(String... args) throws Exception {
+        FileAlterationMonitor fileAlterationMonitor = fileListenerFactory.getMonitor();
+        try {
+            fileAlterationMonitor.start();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

src/main/java/com/yutou/nas/Services/IMusicToolsService.java

@@ -3,6 +3,7 @@ package com.yutou.nas.Services;
 
 import com.yutou.nas.mybatis.model.MusicData;
 
+import java.io.File;
 import java.util.List;
 
 public interface IMusicToolsService {
@@ -27,4 +28,7 @@ public interface IMusicToolsService {
     String getMusicPath();
 
     byte[] readImage(String path) throws Exception;
+
+    void addMusic(File file);
+    void delMusic(File file);
 }

src/main/java/com/yutou/nas/Services/impl/MusicToolsServiceImpl.java

@@ -183,6 +183,9 @@ public class MusicToolsServiceImpl implements IMusicToolsService {
     }
 
     private void add(File file) {
+        MusicDataExample example=new MusicDataExample();
+        example.createCriteria().andFileEqualTo(file.getAbsolutePath());
+        if(musicDataDao.selectByExample(example).isEmpty()) {
             MusicData data = getMetadata(file);
             if (data != null) {
                 try {
@@ -197,6 +200,7 @@ public class MusicToolsServiceImpl implements IMusicToolsService {
 
             }
         }
+    }
 
     @Override
     public MusicData getMusicData(String path) {
@@ -527,6 +531,18 @@ public class MusicToolsServiceImpl implements IMusicToolsService {
         return bytes;
     }
 
+    @Override
+    public void addMusic(File file) {
+         add(file);
+    }
+
+    @Override
+    public void delMusic(File file) {
+        MusicDataExample example=new MusicDataExample();
+        example.createCriteria().andFileEqualTo(file.getAbsolutePath());
+        musicDataDao.deleteByExample(example);
+    }
+
     private byte[] readImageFile(File file) throws Exception {
         String path = file.getAbsolutePath().replace(file.getName(), "");
         File img = new File(path, "cover.jpg");

src/main/java/com/yutou/nas/utils/ApplicationInit.java

@@ -58,7 +58,7 @@ public class ApplicationInit implements ApplicationRunner {
                     oldTime = time;
                     switch (time) {
                         case "00:00":
-                            musicTools.scanMusic();
+                         //   musicTools.scanMusic();
                             break;
                         case "01:00":
                             DepotManager.scan();