Eclipse plugin 自定义Eclipse插件部署，并向PackageExplorer提供弹出窗口

我开发了一个简单的插件来生成一些例程代码。这个插件对PackageExplorer的弹出菜单有贡献。当从开发环境运行时（从EclipseRCP以Eclipse应用程序的形式启动），它可以正常工作——菜单中会出现一个适当的菜单项，它的调用执行预期的操作

但是，我很难将它部署到另一个Eclipse实例中

开发的插件通过导出向导导出，导出向导生成一个单独的jar文件。这个jar文件已经放在另一个Eclipse安装（新解包）的dropings目录中。当此Eclipse实例启动时，PackageExplorer的弹出菜单不包含已贡献的菜单项。来自Eclipse安装详细信息的信息显示插件位于插件选项卡上，配置选项卡将其列为

tg.companion（1.0.0.201208132302）“companion Object Generator”[启动]

我错过了什么？为什么贡献的菜单项不显示

塔克斯

---

菜单贡献的

locationURI

是

popup:org.eclipse.jdt.ui.PackageExplorer

，属性

allPopups

的值是

true

插件未签名

---

这里的插件文件，可能会有一些启示

Plugin.xml：

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension point="org.eclipse.ui.menus">
      <menuContribution
            allPopups="true"
            locationURI="popup:org.eclipse.jdt.ui.PackageExplorer">
         <command
               commandId="tg.companion.handler.generator"
               label="TG Create Companion Object"
               style="push"
               tooltip="Creates a companion object to the selected entity object, and provides DAO/RAO implementations">
         </command>
      </menuContribution>
   </extension>
   <extension point="org.eclipse.ui.commands">
      <command
            defaultHandler="tg.companion.handler.GenerateCompanionObjects"
            id="tg.companion.handler.generator"
            name="Generate Comanion">
      </command>
   </extension>
</plugin> 

命令处理程序：

package tg.companion.handler;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.HandlerUtil;

public class GenerateCompanionObjects extends AbstractHandler implements IHandler {

    @Override
    public Object execute(final ExecutionEvent event) throws ExecutionException {
        final Shell shell = HandlerUtil.getActiveShell(event);
        final ISelection sel = HandlerUtil.getActiveMenuSelection(event);
        final IStructuredSelection selection = (IStructuredSelection) sel;

        final Object firstElement = selection.getFirstElement();
        if (firstElement instanceof ICompilationUnit) {
            createOutput(shell, (ICompilationUnit) firstElement);
        } else {
            MessageDialog.openWarning(shell, "Companion Object Generation Warning", "Please select an entity object for generating a corresponding companion.");
        }
        return null;
    }

    private void createOutput(final Shell shell, final ICompilationUnit cu) {
         // does code generation work using Java Model
    }

}

---

问题终于解决了

在仔细检查项目结构之后，发现build.properties文件（出于某种原因）没有检查plugin.xml。因此，plugin.xml没有包含在导出向导生成的jar文件中

一旦build.properties文件被修改为包含plugin.xml，生成的jar文件就可以毫无问题地包含和部署它

---

有趣的是，plugin export向导甚至没有警告排除plugin.xml，这是我个人所期望的。

错误日志中是否有任何内容。另外，您是否能够在osgi控制台中检查插件的状态-它处于什么状态？运行打印为“427 STARTING tg.companion_1.0.0.201208141117”的ss命令。使用start 427命令激活插件，导致状态为ACTIVE。但是，没有出现菜单贡献。从Windows->Show View打开的错误日志中没有错误。是否可以发布插件here@katsharp是否可以为问题附加一个档案？或者你的意思是发布嵌入问题的特定文件的源代码（例如plugin.xml和command class）？塔克斯。

package tg.companion.handler;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.HandlerUtil;

public class GenerateCompanionObjects extends AbstractHandler implements IHandler {

    @Override
    public Object execute(final ExecutionEvent event) throws ExecutionException {
        final Shell shell = HandlerUtil.getActiveShell(event);
        final ISelection sel = HandlerUtil.getActiveMenuSelection(event);
        final IStructuredSelection selection = (IStructuredSelection) sel;

        final Object firstElement = selection.getFirstElement();
        if (firstElement instanceof ICompilationUnit) {
            createOutput(shell, (ICompilationUnit) firstElement);
        } else {
            MessageDialog.openWarning(shell, "Companion Object Generation Warning", "Please select an entity object for generating a corresponding companion.");
        }
        return null;
    }

    private void createOutput(final Shell shell, final ICompilationUnit cu) {
         // does code generation work using Java Model
    }

}