如何在Jar中打开.scala文件

Question

我在JAR中有一个.scala文件，如何打开不属于jar的代码？ 对于一些额外的精度，jar文件不在类路径上。

这是我的代码示例。它部分工作，jar上的文件是打开的，但为此我从文件夹“lib”创建它。

你有没有想过要在文件夹上创建文件？

谢谢！

protected Object openDialogBox(Control cellEditorWindow, Object value, String jarFileName)
        throws CoreException, IOException {

    IWorkspaceRoot myWorkspaceRoot = ResourcesPlugin.getWorkspace().getRoot();
    IProject myProject = myWorkspaceRoot.getProject(ActiveProject.getNameProject());
    String fileProgramName = (String) value;
    InputStream stream;
    final boolean readOnly = (jarFileName != null);

    if (myProject.exists() && myProject.isOpen()) {  
        IFolder sourceFolder = myProject.getFolder( (jarFileName != null) ? "lib" : "src" );     
        if (sourceFolder.exists()) {

            final IFile programFile = sourceFolder.getFile(fileProgramName);
            if ( jarFileName != null ) {
                programFile.delete(true, new NullProgressMonitor());
                stream = JarUtil.getProgramFromJar(jarFileName, fileProgramName);                   
            } 
            else {       
                stream = createContentStream(myProject.getName(), programFile.getName().replace(".scala", ""));
            }
            if (!programFile.exists()) {
                // create the file
                programFile.create(stream, true, new NullProgressMonitor());    
            }
            programFile.refreshLocal(IResource.DEPTH_ZERO, null);
            stream.close(); 
            cellEditorWindow.getShell().getDisplay().asyncExec(new Runnable() {         
                     public void run() {            
                         IWorkbenchPage page = PlatformUI.getWorkbench()
                                    .getActiveWorkbenchWindow().getActivePage();            
                         try {
                             ResourceAttributes myAttributes = programFile.getResourceAttributes();

                             if (myAttributes == null) {
                                  myAttributes = new ResourceAttributes();
                             }
                             myAttributes.setReadOnly(readOnly);
                             try {
                                 programFile.setResourceAttributes(myAttributes);
                             } catch (CoreException e) {
                                 e.printStackTrace();
                             }
                             IDE.openEditor(page, programFile, true);
                         } catch (PartInitException e) {
                         }          
                     }          
            }); 
            return value;   

        }   
        return null;     
    }
    return null;
}