晚上好,

我目前正在使用蜡染来直接操纵DOM文档svg,从而在Java中处理图形应用程序(处理svg文件).

我的各种元素都在“ symbol”标签中声明,标签由“ use”使用和/或显示.
这是svg文件：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="text/ecmascript" width="100%" zoomAndPan="magnify" contentStyleType="text/css" height="100%" preserveAspectRatio="xMidYMid meet" version="1.0">

    <defs>
        <g id="module-list">
            <symbol preserveAspectRatio="xMidYMid meet" id="chaise_1.1.2" version="1.1.2" viewBox="0 0 200 256" module="chaine">
                <polygon fill="inherit" clip-rule="evenodd" fill-rule="evenodd" points="184.055,256.09 184.055,256.09 184.055,148.195 199.135,148.195 199.135,256.09  "/>
                <polygon fill="inherit" clip-rule="evenodd" fill-rule="evenodd" points="83.006,201.214 83.006,201.214 83.006,187.532 182.656,187.532       182.656,201.214  "/>
                <polygon fill="inherit" clip-rule="evenodd" fill-rule="evenodd" points="83.006,169.963 83.006,169.963 83.006,149.286 182.656,149.286       182.656,169.963  "/>
                <path fill="inherit" clip-rule="evenodd" d="m94.664,133.266L94.664,133.266c8.183-2.792,23.189-5.077,45.008-6.836      c21.818-1.76,38.142-1.219,48.972,1.631c10.831,2.85,16.246,9.305,16.246,19.354H82.382      C82.382,140.779,86.473,136.071,94.664,133.266z" fill-rule="evenodd"/>
                <path fill="inherit" clip-rule="evenodd" d="m55.951,25.838c-5.393-15.133-5.964-23.633-1.714-25.497      c7.672-1.866,13.17,6.633,16.486,25.497c7.25,35.553,10.885,69.858,10.885,102.921v127.33H66.369l0.308-126.706      C66.677,96.004,63.104,61.497,55.951,25.838z" fill-rule="evenodd"/>
            </symbol>
        </g>
    </defs>
    <g id="plan-list">
        <g id="nameZone1">
            <rect fill="#000000" x="0" width="500" height="500" y="0"/>
            <use x="50" y="20" fill="#F5A9D0" width="20" xlink:href="#chaise_1.1.2" xlink:type="simple" xlink:actuate="onLoad" height="200" xlink:show="embed"/>
            <use x="50" y="60" width="20" xlink:href="#chaise_1.1.2" xlink:type="simple" xlink:actuate="onLoad" height="200" xlink:show="embed"/>
        </g>
        <g id="nameZone2">
            <rect fill="#0000FF" x="500" width="500" height="500" y="0"/>
            <use x="550" y="20" width="20" xlink:href="#chaise_1.1.2" xlink:type="simple" xlink:actuate="onLoad" height="200" xlink:show="embed"/>
            <use x="550" y="60" width="20" xlink:href="#chaise_1.1.2" xlink:type="simple" xlink:actuate="onLoad" height="200" xlink:show="embed"/>
        </g>
    </g>
</svg>

我在svg的元素上添加了一个事件：

((EventTarget) objAdd.getNodeUse()).addEventListener( SVGConstants.SVG_MOUSEDOWN_EVENT_TYPE, new EObject(), false);
((EventTarget) objAdd.getNodeDefs()).addEventListener( SVGConstants.SVG_MOUSEDOWN_EVENT_TYPE, new EObject(), false);

在一个区域上(与组元素g匹配)

Element elt = doc.getElementById("nameZone1");
EventTarget t = (EventTarget)elt;
t.addEventListener(SVGConstants.SVG_MOUSEDOWN_EVENT_TYPE, new EObject(), false);

EObject类实现org.w3c.dom.events.EventListener：

import org.w3c.dom.Element;
import org.w3c.dom.events.Event;

public class EObject implements org.w3c.dom.events.EventListener
{
    public void handleEvent(Event evt) 
    {
        System.out.println("YOUPIIII JE SUIS CLIQUE");  
        Element e = (Element) evt.getCurrentTarget();
    }
}

当单击对象(理论上是节点使用)时,handleEvent函数将返回元素组g(id =“ nameZone1).

我想检索与单击的项目相对应的项目“使用”.

当我删除此代码时：

Element elt = doc.getElementById("nameZone1");
    EventTarget t = (EventTarget)elt;
    t.addEventListener(SVGConstants.SVG_MOUSEDOWN_EVENT_TYPE, new EObject(), false);

单击某个元素不会产生任何效果.

这可能就是为什么getCurrentTarget()引用了g个匹配项.

问题一定是肯定是Event添加项.

再次,如果您有一个想法,这是受欢迎的..

谢谢您的帮助.

解决方法:

定义(尤其是符号)不是使用SVG绘制的.
如果您想将eventListener添加到use元素,则必须为其指定一个ID.
在SVG文件中：

<use id="use3430" xlink:show="embed" height="200" xlink:actuate="onLoad" xlink:type="simple" xlink:href="#chaise_1.1.2"
            width="20" y="20" x="550" />

然后,您可以获取它doc.getElementById(“ use3430”);

问候