如何在eclipse中运行java fileservice小程序?
我必须扩展现有的applet,使其能够写入本地文件。 我在上尝试了文件服务演示,发现它正是我们所需要的。 但我必须在eclipse中运行它,在eclipse中我会收到很多(对我来说是无助的)消息:如何在eclipse中运行java fileservice小程序?,java,eclipse,applet,jnlp,java-web-start,Java,Eclipse,Applet,Jnlp,Java Web Start,我必须扩展现有的applet,使其能够写入本地文件。 我在上尝试了文件服务演示,发现它正是我们所需要的。 但我必须在eclipse中运行它,在eclipse中我会收到很多(对我来说是无助的)消息: javax.jnlp.UnavailableServiceException: uninitialized at javax.jnlp.ServiceManager.lookup(Unknown Source) at graph.FileAccess.loadFileByFileSer
javax.jnlp.UnavailableServiceException: uninitialized
at javax.jnlp.ServiceManager.lookup(Unknown Source)
at graph.FileAccess.loadFileByFileService(FileAccess.java:149)
at graph.FileAccess.loadFile(FileAccess.java:141)
at graph.FileAccess.loadFile(FileAccess.java:117)
at graph.FileAccess$1.actionPerformed(FileAccess.java:75)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:703)
at java.awt.EventQueue.access$000(EventQueue.java:102)
at java.awt.EventQueue$3.run(EventQueue.java:662)
at java.awt.EventQueue$3.run(EventQueue.java:660)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:676)
at java.awt.EventQueue$4.run(EventQueue.java:674)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:673)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
我已经在网上搜索了几个小时,找不到解决方案。缺少什么?显然,在Eclipse中调试WebStart应用程序并不容易(但使用Netbeans似乎很容易) 有几件事可以尝试:
我没有尝试过这些,但我个人会选择第一个选项,因为它是最简单的,尽管作为一个过程有点乏味。我还想尝试一下WS4E,看看它能做些什么。在Eclipse中如何运行它?是否相关?I'va将示例添加到exixting程序中,并添加了对“savefile”例程的调用,该例程可以正常工作:它显示的帧和按钮与独立示例中的相同。但是,当我点击“打开文件”或“保存文件”按钮时,我就看到了消息列表。我以“Javaapplet”的形式运行它,所有其他部分都工作正常。示例“FileAccess.java”中还附带了一个jnlp文件,该文件与链接中的文件类似。我错在哪里?我忘记了什么?您是否尝试将其作为
Java应用程序运行,而不是作为Java Applet
运行?“消息列表”。这意味着javaws.jar
不在应用程序的运行时类路径上。当它尝试创建相关服务时。抱歉-我本想早点讨论这个问题,因为我编写了JNLPAPI示例@Andrew Thompson:我在“运行配置”的“classpath”选项卡中专门添加了javaws.jar的路径,但它仍然给出了相同的错误消息列表。难道在eclipse中没有调试小程序的好方法吗?