java 打开文件夹

使用java 语言，如何打开文件夹和浏览文件呢？

打开文件夹或打开目录

/***
	 * 
	 * @param folder
	 *            : directory
	 */
	public static void open_directory(String folder) {
		File file = new File(folder);
		if (!file.exists()) {
			return;
		}
		Runtime runtime = null;
		try {
			runtime = Runtime.getRuntime();
			if (!SystemUtil.isWindows) {
				// System.out.println("is linux");
				runtime.exec("nautilus " + folder);
			} else {
				runtime.exec("cmd /c start explorer " + folder);
			}
		} catch (IOException ex) {
			ex.printStackTrace();
		} finally {
			if (null != runtime) {
				runtime.runFinalization();
			}
		}
	}

 

浏览文件：

/***
	 * 
	 * @param filePath
	 *            : only regular file
	 */
	public static void open_file(String filePath) {
		File file = new File(filePath);
		if (!file.exists()) {
			return;
		}
		Runtime runtime = null;
		try {
			runtime = Runtime.getRuntime();
			if (!SystemUtil.isWindows) {
				// System.out.println("is linux");
				runtime.exec("nautilus " + filePath);
			} else {
				runtime.exec("cmd /c start explorer /select,/e, " + filePath);
			}
		} catch (IOException ex) {
			ex.printStackTrace();
		} finally {
			if (null != runtime) {
				runtime.runFinalization();
			}
		}
	}

应用：

openFileButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				FileUtils.open_file(sourceTF.getText());				
			}
		});

openFolderButton = new JButton("打开文件夹");
		openFolderButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				//打开文件夹
				FileUtils.open_directory(targetTF.getText());
			}
		});

  

 

请参阅附件中的类com.io.hw.file.util.FileUtils

---------------2016年9月11日  优化代码-----------------

/***
	 *
     * @param folderObj
     *            : directory
	 */
	public static void open_directory(Object folderObj) {
		if (ValueWidget.isNullOrEmpty(folderObj)) {
			return;
		}
		File file = null;
		/*if (folderObj instanceof JTextField) {
			JTextField tf = (JTextField) folderObj;
			file = new File(tf.getText());
		} else */if (folderObj instanceof String) {
			file = new File((String) folderObj);
		} else {
			file = (File) folderObj;
		}
		if (!file.exists()) {
			return;
		}
		Runtime runtime = null;
		try {
			runtime = Runtime.getRuntime();
			if (SystemHWUtil.isWindows) {
				runtime.exec("cmd /c start explorer " + file.getAbsolutePath());
            } else if (SystemHWUtil.isMacOSX) {//苹果电脑,比如MacBook
                String cmdPrefix;
                if (file.isDirectory()) {
                    cmdPrefix = "open ";
                } else {
                    cmdPrefix = "open -R ";
                }
                runtime.exec(cmdPrefix + file.getAbsolutePath());
            } else {
                runtime.exec("nautilus " + file.getAbsolutePath());
			}
		} catch (IOException ex) {
			ex.printStackTrace();
		} finally {
			if (null != runtime) {
				runtime.runFinalization();
			}
		}
	}

 参考:http://blog.marchtea.com/archives/119

作者:黄威

主页: http://blog.youkuaiyun.com/hw1287789687