Eclipse 插件開發遇到問題心得總結

1、Eclipse 中插件開發多語言的實現

為了使用 .properties 文件，需要在 META-INF/MANIFEST.MF 文件中定義：
????? Bundle-Localization: plugin
這樣就會自動加載 plugin.properties 文件(中文找 plugin_zh_CN.properties)
然后在 plugin.xml 文件中，將字符串替換為 %key 就可以了
建議先使用 Eclipse 的外部化字符串目錄：

Bundle-Localization:?OSGI-INF/l10n/plugin?

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2、Eclipse 插件開發初始化隱藏某工具欄按鈕

在網上找了好久都找不到解決辦法，最后搜索 eclipse 安裝目錄，從它自己的插件里面找到樣例了。樣例來自 org.eclipse.jdt.ui/plugin.xml

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 <extension
 <extension point="org.eclipse.ui.perspectiveExtensions">

<perspectiveExtension? targetID="*">

<!-- 注意這里的 id 是 action 或 command 的 id -->

<hiddenToolBarItem??? id="org.eclipse.jdt.ui.actions.OpenProjectWizard">

</hiddenToolBarItem>

</perspectiveExtension>??
 

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3、插件中獲取 Eclipse 版本號

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01.String?sEclipseVersion?=?System.getProperty("osgi.framework.version");??

4、插件中獲取路徑

 // 得到插件所在的路徑
 Platform.asLocalURL(Platform.getBundle("your plugin ID").getEntry("")).getFile();
 
 // 得到當前工作空間的路徑
 Platform.getInstanceLocation().getURL().getFile();
 
 // 得到當前工作空間下的所有工程
 ResourcesPlugin.getWorkspace().getRoot().getProjects();
 
 // 得到某 PLUGIN 的路徑:
 Platform.getBundle("mypluginid").getLocation().
 // eclipse采用osgi后好像還可以:
 Activator.getDefault().getBundle().getLocation(); //前提是這個插件有Activator這個類.這個類繼承了ECLIPSE的Plugin類
 // eclipse采用osgi前好像好像是:
 MyPlugin.getDefault().getBundle().getLocation(); //前提是這個插件有MyPlugin這個類.這個類繼承了ECLIPSE的Plugin類
 
 // 得到工作區路徑:
 Platform.getlocation();
 // 或 ResourcesPlugin.getWorkspace(); 好像 Platform.getInstanceLocation() 也可行
 
 // 得到ECLIPSE安裝路徑
 Platform.getInstallLocation();
 
 // 從插件中獲得絕對路徑：
 AaaaPlugin.getDefault().getStateLocation().makeAbsolute().toFile().getAbsolutePath();
 
 // 通過文件得到 Project：
 IProject project = ((IFile)o).getProject();
 
 // 通過文件得到全路徑：
 String path = ((IFile)o).getLocation().makeAbsolute().toFile().getAbsolutePath();
 
 // 得到整個Workspace的根：
 IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
 
 // 從根來查找資源：
 IResource resource = root.findMember(new Path(containerName));
 
 // 從Bundle來查找資源：
 Bundle bundle = Platform.getBundle(pluginId);
 URL fullPathString = BundleUtility.find(bundle, filePath);
 
 // 得到 Appliaction workspace：
 Platform.asLocalURL(PRODUCT_BUNDLE.getEntry("")).getPath()).getAbsolutePath();
 
 // 得到 runtimeworkspace：
 Platform.getInstanceLocation().getURL().getPath();
 
 // 從編輯器來獲得編輯文件
 IEditorPart editor = ((DefaultEditDomain)(parent.getViewer().getEditDomain())).getEditorPart();
 IEditorInput input = editor.getEditorInput();
 if(input instanceof IFileEditorInput)
 {
 IFile file = ((IFileEditorInput)input).getFile();
 }
 
 //?獲取插件的絕對路徑：
 FileLocator.resolve(BuildUIPlugin.getDefault().getBundle().getEntry("/")).getFile();

?5、添加myeclipse JAVAEE Library?與User?Library

IClasspathEntry?myEclipseJAVAEE5?=JavaCore.newContainerEntry(new?Path("melibrary.com.genuitec.eclipse.j2eedt.core.MYECLIPSE_JAVAEE_5_CONTAINER"));
IClasspathEntry?myEclipseUCITPortletDev?=JavaCore.newContainerEntry(new?Path("org.eclipse.jdt.USER_LIBRARY/UCITPortletDev"));

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6、利用Ifile向項目中寫文件

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????/**
 ?????*?jar文件輸入流
 ?????*?@param?path
 ?????*?@return
 ?????*/
 ????private?InputStream?fileInput(File?path){
 ????????
 ????????try?{
 ????????????FileInputStream?fis=new?FileInputStream(path);
 ????????????return?fis;
 ????????}?catch?(FileNotFoundException?e)?{
 ????????????//?TODO?Auto-generated?catch?block
 ????????????e.printStackTrace();
 ????????}
 ????????return?null;
 ????}
 ????
 ????/**
 ?????*?Adds?a?new?file?to?the?project.
 ?????*?
 ?????*?@param?container
 ?????*?@param?path
 ?????*?@param?contentStream
 ?????*?@param?monitor
 ?????*?@throws?CoreException
 ?????*/
 ????private?void?addFileToProject(IContainer?container,?Path?path,
 ????????????InputStream?contentStream,?IProgressMonitor?monitor)
 ????????????throws?CoreException?{
 ????????final?IFile?file?=?container.getFile(path);
 
 ????????if?(file.exists())?{
 ????????????file.setContents(contentStream,?true,?true,?monitor);
 ????????}?else?{
 ????????????file.create(contentStream,?true,?monitor);
 ????????}
 
 ????}

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????????//寫入自動生成portlet環境的jar包
 ????????IContainer?container?=?(IContainer)?project;
 ????????IProgressMonitor?monitor?=?new?NullProgressMonitor();
 ????????Path?autoJar=new?Path(WEBROOT+FILESEPARATOR+WEBINF+FILESEPARATOR?+LIB+FILESEPARATOR+"UcitPortletDev.jar");????//項目路徑
 ????????InputStream?jarIS=fileInput(new?File("d:/PortletAuto.jar"));????//本地文件路徑
 ????????
 ????????//寫入自動生成portlet環境的xml配置文件
 ????????Path?autoConfigXML=new?Path("src"+FILESEPARATOR+"service_portlet.xml");????//項目路徑
 ????????InputStream?XMLIS=fileInput(new?File(selectConfigPath));????//本地文件路徑
 ????????
 ????????try?{
 ????????????addFileToProject(container,autoJar,jarIS,monitor);????//Jar
 ????????????monitor?=?new?NullProgressMonitor();
 ????????????addFileToProject(container,autoConfigXML,XMLIS,monitor);????//XML
 ????????}?catch?(CoreException?e)?{
 ????????????//?TODO?Auto-generated?catch?block
 ????????????e.printStackTrace();
 ????????}finally{
 ????????????if?(jarIS!=null){
 ????????????????jarIS.close();
 ????????????}
 ????????????if?(XMLIS!=null){
 ????????????????XMLIS.close();?
 ????????????}
 ????????}

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7、獲取Eclipse當前項目

public?static?IProject?getCurrentProject(){???
 ????????ISelectionService?selectionService?=????
 ????????????Workbench.getInstance().getActiveWorkbenchWindow().getSelectionService();???
 ???
 ????????ISelection?selection?=?selectionService.getSelection();???
 ???
 ????????IProject?project?=?null;???
 ????????if(selection?instanceof?IStructuredSelection)?{???
 ????????????Object?element?=?((IStructuredSelection)selection).getFirstElement();???
 ???
 ????????????if?(element?instanceof?IResource)?{???
 ????????????????project=?((IResource)element).getProject();???
 ????????????}?else?if?(element?instanceof?PackageFragmentRootContainer)?{???
 ????????????????IJavaProject?jProject?=????
 ????????????????????((PackageFragmentRootContainer)element).getJavaProject();???
 ????????????????project?=?jProject.getProject();???
 ????????????}?else?if?(element?instanceof?IJavaElement)?{???
 ????????????????IJavaProject?jProject=?((IJavaElement)element).getJavaProject();???
 ????????????????project?=?jProject.getProject();???
 ????????????}???
 ????????}????
 ????????return?project;???
 ????}???