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我使用 netbeans 网站上的教程（由于服务器问题而处于离线状态）来创建一个读取 XML 并在其上输出一些信息的操作。一切都很好，但是该操作不允许我在某些 XML 文件上调用它，并且我没有可用的资源来帮助解决这个问题。例如，当我运行程序时，它允许我在清单文件（甚至不是 xml，并且相应地出错）上调用操作，但不能在 .xml 文件上调用。这里的代码可能是我从教程中更改的罪魁祸首。我认为它会使“显示 XML”消息始终启用，但它仍然在 xml 文件上被禁用。

@ActionReferences({
    @ActionReference(path = "Editors/Popup", position = 1100)
})

这是我的 SSCCE（原文如此）：

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.versifit.udl.xml;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.IOException;
import java.io.InputStream;
import org.openide.awt.ActionID;
import org.openide.awt.ActionReference;
import org.openide.awt.ActionReferences;
import org.openide.awt.ActionRegistration;
import org.openide.cookies.EditorCookie;
import org.openide.util.Exceptions;
import org.openide.util.NbBundle;
import org.openide.util.NbBundle.Messages;
import org.openide.windows.IOProvider;
import org.openide.windows.InputOutput;
import org.openide.xml.XMLUtil;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

@ActionID(category = "Edit",
id = "com.versifit.udl.xml.ShowXMLStructureAction")
@ActionRegistration(displayName = "#CTL_ShowXMLStructureAction")
@ActionReferences({
    @ActionReference(path = "Editors/Popup", position = 1100)
})
@Messages("CTL_ShowXMLStructureAction=Show Xml Structure")

public final class ShowXMLStructureAction implements ActionListener {

private final EditorCookie context;

public ShowXMLStructureAction(EditorCookie context) {
    this.context = context;
}

public void actionPerformed(ActionEvent ev) {
    EditorCookie editorCookie = context;
    //Get the tab name from the Bundle.prop file:
    String tabName = NbBundle.getMessage(ShowXMLStructureAction.class, "LBL_tabName");
    InputOutput io = IOProvider.getDefault().getIO(tabName, false);
    io.select(); //"XML Structure" tab is selected
    try {
    //Get the InputStream from the EditorCookie:
    InputStream is = ((org.openide.text.CloneableEditorSupport) editorCookie).getInputStream();
    //Use the NetBeans org.openide.xml.XMLUtil class to create a org.w3c.dom.Document:
    //"XML Structure" tab is created in Output Window for writing the list of tags:
    Document doc = XMLUtil.parse(new InputSource(is),true,true,null,null);
    //Create a list of nodes, for all hte elements:
    NodeList list = doc.getElementsByTagName("*");
    //Iterate through the list:
    for (int i = 0; i < list.getLength(); i++) {
        //For each node in the list, create a org.w3c.dom.Node:
        org.w3c.dom.Node mainNode = list.item(i);
        //Create a map for all the attributes of the org.w3c.dom.Node:
        NamedNodeMap map = mainNode.getAttributes();
        //Get the name of the node:
        String nodeName = mainNode.getNodeName();
        //Create a StringBuilder for the Attributes of the Node:
        StringBuilder attrBuilder = new StringBuilder();
        //Iterate through the map of attributes:
        for (int j = 0; j < map.getLength(); j++) {
            //Each iteration, create a new Node:
            org.w3c.dom.Node attrNode = map.item(j);
            //Get the name of the current Attribute:
            String attrName = attrNode.getNodeName();
            //Add the current Attribute to the StringBuilder:
            attrBuilder.append("*").append(attrName).append(" ");
        }
        //Print the element and its attributes to the Output window:
        io.getOut().println("ELEMENT: " + nodeName +
                " --> ATTRIBUTES: " + attrBuilder.toString());
    }
    //Close the InputStream:
    is.close();
} catch (SAXException ex) {
    Exceptions.printStackTrace(ex);
} catch (IOException ex) {
    Exceptions.printStackTrace(ex);
}
}
}
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1 回答 1

1

这就是你需要的：

@ActionReferences({ @ActionReference(path = "Editors/text/xml/Popup", position = 1100) })

于 2011-06-30T16:23:11.183 回答