Java代码
</div>
- -Djava.library.path=你的位置
</div> ，这样和上面将so文件加入系统路径中是一样的效果。
然后，写个测试类就可以看见效果了。
JNotify官网的测试代码。
public class JnotifyTest { public static void main(String[] args) { try { new JnotifyTest().sample(); } catch (Exception e) { e.printStackTrace(); } // System.out.println(System.getProperty("java.library.path")); } public void sample() throws Exception { // path to watch String path = System.getProperty("user.home"); // watch mask, specify events you care about, // or JNotify.FILE_ANY for all events. int mask = JNotify.FILE_CREATED | JNotify.FILE_DELETED | JNotify.FILE_MODIFIED | JNotify.FILE_RENAMED; // watch subtree? boolean watchSubtree = true; // add actual watch int watchID = JNotify .addWatch(path, mask, watchSubtree, new Listener()); // sleep a little, the application will exit if you // don't (watching is asynchronous), depending on your // application, this may not be required Thread.sleep(1000000); // to remove watch the watch boolean res = JNotify.removeWatch(watchID); if (!res) { // invalid watch ID specified. } } //可以在下面的监控方法中添加自己的代码。比如在fileModified中添加重新加载配置文件的代码 class Listener implements JNotifyListener { public void fileRenamed(int wd, String rootPath, String oldName, String newName) { print("renamed " + rootPath + " : " + oldName + " -> " + newName); } public void fileModified(int wd, String rootPath, String name) { print("modified " + rootPath + " : " + name); } public void fileDeleted(int wd, String rootPath, String name) { print("deleted " + rootPath + " : " + name); } public void fileCreated(int wd, String rootPath, String name) { print("created " + rootPath + " : " + name); } void print(String msg) { System.err.println(msg); } } } 在实际的使用过程中，如果是web工程，我的习惯是添加一个listener监听器，当监听器初始化时，添加对指定文件或文件夹的监控。这样我们就不必为每次修改了配置文件都需要重启工程而苦恼了。如果是Java工程，就是需要的地方添加监控吧。