java - Eclipse 插件 : Passing command line arguments

Question

目前我正在传递命令行参数来调用一个程序。我正在展示一个小代码片段供您引用。

public class Main {
    public static void main(String[] args) throws Exception {

        GlobalVariable.activity = args[0];
        GlobalVariable.templatePath = args[1];
      ....

        }

为了调用上述程序，我从 Eclipse 传递以下命令。

现在，我正在尝试开发一个从 Java 程序本身调用此命令的 eclipse 插件。为了开发插件，我做了以下工作:

1. Eclipse(新建 -> 项目 -> Eclipse 插件项目)，项目名称为“org.example.helloworld”
2. 我选择了“带弹出菜单的插件”模板。
3. 现在，我在“NewAction.java”中编写了以下代码，以将命令行参数传递到我的主文件，如上所示。

public void run(IAction action) {
      String args[]  = new String[2];
      args[0] = "compile-vocab-spec"; 
      args[1] = "C:\\Template\\";

      try {
          Main.main(args);
      } catch (Exception e) {
          e.printStackTrace();
      }   
  }

我的问题是 - 我无法调用 Main.java 文件。这种技术有什么问题？也欢迎任何其他选择。如果您需要更多信息以进一步了解情况，请告诉我。

当我运行代码时，我在控制台上看到以下消息。

!SESSION 2015-11-15 14:04:18.580 -----------------------------------------------
eclipse.buildId=4.5.1.M20150904-0015
java.version=1.8.0_51
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments:  -product org.eclipse.platform.ide
Command-line arguments:  -product org.eclipse.platform.ide -data C:\Users\inpapat4\workspace/../runtime-EclipseApplication -dev file:C:/Users/inpapat4/workspace/.metadata/.plugins/org.eclipse.pde.core/Eclipse Application/dev.properties -os win32 -ws win32 -arch x86_64 -consoleLog

!ENTRY org.eclipse.core.net 4 0 2015-11-15 14:04:36.102
!MESSAGE WinHttp.GetProxyForUrl for pac failed with error 'The proxy auto-configuration script could not be downloaded
' #12167.

!ENTRY org.eclipse.ui 4 0 2015-11-15 14:04:46.332
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.NoClassDefFoundError: org/antlr/runtime/CharStream
    at org.example.helloworld.popup.actions.NewAction.run(NewAction.java:42)
    at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:247)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)
    at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)
    at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
Caused by: java.lang.ClassNotFoundException: org.antlr.runtime.CharStream cannot be found by org.example.helloworld_1.0.0.qualifier
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:439)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:352)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:344)
    at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 32 more

MANIFEST.MF文件内容如下:

Bundle-ManifestVersion: 2
Bundle-Name: Helloworld
Bundle-SymbolicName: org.example.helloworld;singleton:=true
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: org.example.helloworld.Activator
Require-Bundle: org.eclipse.ui,
 org.eclipse.core.runtime,
 org.eclipse.core.resources
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Bundle-ActivationPolicy: lazy

Answer 1

插件中所需的 jar 必须列在 Bundle-Classpath 条目中的 MANIFEST.MF 中。

为此打开 MANIFEST.MF 编辑器，在“运行时”选项卡上将 jars 添加到“类路径”部分。

结果可能类似于:

'.'条目用于插件文件，然后我在“lib”文件夹中有 3 个 jar。

还要确保 jars 列在“build.properties”文件中，以便它们包含在最终的插件 jar 中。