Java / Prolog帮助-故障排除

Question

我在尝试使用interprolog时经历了一段艰难的时光

我有一些代码，试图调用一个prolog命令，问题是我的prolog数据库的实际加载。 这是代码：

    myEngine = new NativeEngine();
    myEngine.consultFromPackage("userlist.p", LoginHandler.class);
    boolean x = myEngine.deterministicGoal("has_access(user,pass)");

当我运行程序prolog时，它会初始化正常，它会尝试查找同一软件包（第二行代码）中的userlist.p，然后抛出此错误：

Exception in thread "AWT-EventQueue-0" com.declarativa.interprolog.util.IPException: Problem consulting from package archive:C:\Users\Keval\AppData\Local\Temp\IP_6971701367857416872\userlist.p
at com.declarativa.interprolog.AbstractPrologEngine.consultFromPackage(AbstractPrologEngine.java)
at handlers.LoginHandler.actionPerformed(LoginHandler.java:25)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

我看了一下ConsultFromPackage的代码：

public void consultFromPackage(String filename,Object requester){
        String path = cleanPath(copyToTemp(filename,requester).getPath());
        path = unescapedFilePath(path);
        progressMessage("consultFromPackage:"+path);
        if (!command("consult('"+path+"')"))
        throw new IPException("Problem consulting from package archive:"+path);
    }

但我似乎无法找到问题的根源..我知道这一切都太遥远了，但是在此刻可以提供任何帮助。

谢谢

Answer 1

我的猜测是路径出问题了，并且在期望的位置找不到user.p 尝试从最小的命令行测试程序开始，以了解库在简单原型中的工作方式。