无法在eclipse中使用JFace和SWT而无需创建插件(Can't use JFace and SWT in eclipse without creating plugin)

 免责声明 ： 
 
 这是.NET GUI试图解决JAVA问题的经典案例。 
 
 问题描述： 
 
 我正在尝试用JFace和SWT构建一个非常简单的GUI - 代码很简单（有很多教程），但并不那么直截了当的是，我似乎无法让JFace和SWT在一个插件项目之外工作。 
 
 我希望能够在我的项目中使用JFace和SWT，因为我在我的CLASSPATH（从我的计算机 - >属性 - >高级 - >环境变量）中放入了“C：/ eclipse 3.5 / plugins”和所有swt - * .dll我可以在我的PATH中找到（本地用户和全局路径，当然），正如本文在“安装SWT和JFace”框中指出的那样。 
 
 问题是我不能从eclipse.org导入任何东西，除非我直接从构建路径引用jar - >库 - >添加外部jar（为了构建它，我必须添加下面的jar： org.eclipse.swt .win32.win32.x86_3.5.1.v3555a.jar ， org.eclipse.jface_3.5.1.M20090826-0800.jar ）。 一旦我这样做，它建立良好，但当我作为“Java应用程序”运行时，我得到以下错误（我应该作为别的东西运行 ？）： 
 
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/core/runtime/IProgressMonitor
    at demo.ui.test.EntryPoint.main(EntryPoint.java:18)
Caused by: java.lang.ClassNotFoundException: org.eclipse.core.runtime.IProgressMonitor
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    ... 1 more
 
 我试图调试这个，基本上它在尝试实例化ApplicationWindow类（org.eclipse.jface.window.ApplicationWindow）时立即抛出。 试图重现错误，我评论了我的所有代码，并将其替换为我的main中的以下内容，并在第一行中引发与上面相同的错误： 
 
ApplicationWindow w = new ApplicationWindow(null); //<-- error on this line
w.setBlockOnOpen(true);
w.open();
Display.getCurrent().dispose();
 
 问题： 
 
 问题1 ：我如何解决上面的错误（我想知道发生了什么）并让该死的东西运行？ 
 
 问题2 ：为什么罐子对我的项目不可见以及如何制作它们？ 
 
 由于我对Java和eclipse不熟悉，我可能会错过一些非常微不足道的东西。 任何帮助高度赞赏！ 
 
 编辑 ：看起来像别人有同样的问题 - > http://www.eclipsezone.com/eclipse/forums/t60528.html - 不太清楚他们如何解决它虽然，援助表示赞赏 

DISCLAIMER: 
 
this is the classic case of .NET GUI trying to work his way around JAVA stuff.
 
PROBLEM DESCRIPTION:
 
I am trying to build a very simple GUI with JFace and SWT - the code is straightforward (there's plenty tutorials), what it's not so straightforward is that I can't seem to get JFace and SWT to work outside a plugin project.
 
I would expect to be able to use JFace and SWT in my project no hassle, since I put "C:/eclipse 3.5/plugins" in my CLASSPATH (from my computer --> properties --> advanced --> environment variables) and all the swt-*.dll I could find in my PATH (both local user and global PATHs, to be sure) as this article indicates in the "Installing SWT and JFace" box.
 
Problem is I can't import anything from eclipse.org unless I reference directly the jars from buildpath --> libraries --> add external jars (in order for it to build I have to add the following jars: org.eclipse.swt.win32.win32.x86_3.5.1.v3555a.jar, org.eclipse.jface_3.5.1.M20090826-0800.jar). Once I do that it builds fine but then when I run it as "Java Application" I get the following error (should I RUN AS something else?):
 
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/core/runtime/IProgressMonitor
    at demo.ui.test.EntryPoint.main(EntryPoint.java:18)
Caused by: java.lang.ClassNotFoundException: org.eclipse.core.runtime.IProgressMonitor
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    ... 1 more
 
I tried to debug this and basically it is thrown as soon as it tries to instantiate the ApplicationWindow class (org.eclipse.jface.window.ApplicationWindow). Trying to reproduce the error, I commented out all my code and replaced it with the following in my main and it throws he same error as above on the first line:
 
ApplicationWindow w = new ApplicationWindow(null); //<-- error on this line
w.setBlockOnOpen(true);
w.open();
Display.getCurrent().dispose();
 
QUESTIONS:
 
Question 1: how can I fix the error above (I'd like to understand what's going on) and get the damn thing to run?
 
Question 2: why the jars are not visible to my project and how to make them?
 
I am probably missing something very trivial due to my lack of familiarity with Java and eclipse. Any help highly appreciated! 
 
EDIT: seems like someone else had the same problem --> http://www.eclipsezone.com/eclipse/forums/t60528.html - not too clear how they solved it though, assistance appreciated

原文：https://stackoverflow.com/questions/1952586