从Java打开文件编辑器

Question

I am trying to open file in external editor from java, but when i run my source code, nothing happens. I am using JRE 1.6 and my opration system is Windows 7. Here is my source code:

Desktop desktop = null;
if (Desktop.isDesktopSupported()) {
  desktop = Desktop.getDesktop();
}

 desktop.edit(new File("D:\\Document.rtf"));

Answer 1

The following should also work:

Runtime.getRuntime().exec( "cmd /C D:\\Document.rtf" );

or

    Runtime run = Runtime.getRuntime();
    String lcOSName = System.getProperty("os.name").toLowerCase();
    boolean MAC_OS_X = lcOSName.startsWith("mac os x");
    if (MAC_OS_X) {
        run.exec("open " + file);
    } else {
        //run.exec("cmd.exe /c start " + file); //win NT, win2000
        run.exec("rundll32 url.dll, FileProtocolHandler " + path);
    }

Answer 2

• did you read API

public void edit(File file) throws IOException

Launches the associated editor application and opens a file for editing.

Parameters: file - the file to be opened for editing Throws: NullPointerException - if the specified file is null IllegalArgumentException - if the specified file doesn't exist UnsupportedOperationException - if the current platform does not support the Desktop.Action.EDIT action IOException - if the specified file has no associated editor, or the associated application fails to be launched SecurityException - if a security manager exists and its SecurityManager.checkRead(java.lang.String) method denies read access to the file, or SecurityManager.checkWrite(java.lang.String) method denies write access to the file, or it denies the AWTPermission("showWindowWithoutWarningBanner") permission, or the calling thread is not allowed to create a subprocess See Also: AWTPermission

• did you test for, and print StackTrace from

  a) UnsupportedOperationException

  b) SecurityException