java 7 /java.nio.file 文件监控！！！

public class Test {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println(FileSystems.getDefault());
try {
WatchService watchService = FileSystems.getDefault().newWatchService();
String watchDir="Z:\\test";
File watchDirFile = new File(watchDir);
System.out.println(watchDirFile.isDirectory());
Path watchDirPath = watchDirFile.toPath();
WatchKey watchKey = watchDirPath.register(watchService,StandardWatchEventKinds.ENTRY_CREATE,StandardWatchEventKinds.ENTRY_MODIFY);
try {
while(true){
watchKey=watchService.take();
System.out.println("==========");
for (WatchEvent event : watchKey.pollEvents()) {
System.out.println("An event was found after file creation of kind" + event.kind()+". The event occurred on file" + event.context());
}
watchKey.reset();
}
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}