Rcp 绝对路径和相对路径的获取

从插件/RCP中取得文件路径

1）从插件中获得绝对路径：
    AaaaPlugin.getDefault().getStateLocation().makeAbsolute().toFile().getAbsolutePath());

通过文件得到Project：
IProject project = ((IFile)o).getProject();

2）通过文件得到全路径：
①String path = ((IFile)o).getLocation().makeAbsolute().toFile().getAbsolutePath();

②IFolder srcFolder =

ResourcesPlugin.getPlugin().getWorkspace().getRoot().getProject(

"yourprojectname").getFolder("src");
   IFile ifile = srcFolder.getFile("hibernate.cfg.xml");

String path= ifile.getLocation().makeAbsolute().toFile().getAbsolutePath();
其中path 得出的是真正的绝对路径.

3）得到整个Workspace的根：
IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();

4）从根来查找资源：
IResource resource = root.findMember(new Path(containerName));

5）从Bundle来查找资源：
Bundle bundle = Platform.getBundle(pluginId);
URL fullPathString = BundleUtility.find(bundle, filePath);

6）得到Appliaction workspace：
Platform.asLocalURL(

PRODUCT_BUNDLE.getEntry("")).getPath()).getAbsolutePath();

7）得到runtimeworkspace：
Platform.getInstanceLocation().getURL().getPath();

8）从编辑器来获得编辑文件：
IEditorPart editor = ((DefaultEditDomain)(parent.getViewer().getEditDomain())).getEditorPart();
IEditorInput input = editor.getEditorInput();
if(input instanceof IFileEditorInput){
    IFile file = ((IFileEditorInput)input).getFile();
}



得到项目的绝对路径：
    FileLocator.toFileURL(

Platform.getBundle(Application.PLUGIN_ID).getEntry("")).getPath()



    10）如果你的RCP工程没有发布，得到的是eclipse的路径。如果你的RCP工程已经发布（假如在D:\RCP\下面），得到的路径就是D:/RCP/。

Location installLoc = LocationManager.getInstallLocation();
     String path = null;
     String installPath = null;
     if (installLoc != null)
     { 

URL installURL = installLoc.getURL();
         // assume install URL is file: based
         path = installURL.getPath();
     }

installPath = path.substring(1, path.length());

11）显示相对路径的image的方法。如下：

①ImageDescriptor imageDes =

AbstractUIPlugin.imageDescriptorFromPlugin(Application.PLUGIN_ID,        "/images/schemabase.jpg");

Image image = imageDes.createImage();

②Put a class in image directory.
For instance:
../../resource/icon1.bmp
../../resource/Resource.class

InputStream istream = Resources.class.getResourceAsStream("icon1.bmp");
Image icon_image = new Image(Display.getCurrent(), istream);



12）获取plugin根目录路径的方法
public static String getRoot(String pluginID){
  String path=null;
  try {
    path = FileLocator.toFileURL(
    Platform.getBundle(pluginID).getEntry("")).getPath();
    path = path.substring(path.indexOf("/") + 1, path.length());
  } catch (Exception e) {
    e.printStackTrace();
  }
  return path;
}



13）eclipse 3.1.1以后用:
     URL bundleRootURL = YourPlugin.getDefault().getBundle()
          .getEntry("/");
     try {
        URL pluginURL = Platform.resolve(bundleRootURL);
        return pluginURL.getPath();
     } catch (IOException e) {

     }

其中URL pluginURL = Platform.resolve(bundleRootURL);
eclipse 3.2M6建议使用FileLocator#resolve(URL)替代 Platform.resolve