如何使用DOM importNode没有抛出：DOMException [英] how to using DOM importNode without DOMException

问题描述

我想一个节点复制到不同的Documentg，但它总有抛出：DOMException约

I want to copy an node to a different Documentg, but it always has DOMException about

org.apache.harmony.xml.dom.NodeImpl.setNameNS（NodeImpl.java:227）

org.apache.harmony.xml.dom.NodeImpl.setNameNS(NodeImpl.java:227)

这是我的code

private String getString(Node seqNode) {
    try {           
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder docBuilder = factory.newDocumentBuilder();          
        Document doc = docBuilder.newDocument();

        Element root = doc.createElement("Test");
        doc.appendChild(root);

        /* following line will cause DOMException */
        doc.importNode(seqNode, true);
        ...
        ...
       } catch (Exception e) {

       }
}

在哪里seqNode属于其他文件

where seqNode belongs to other Document

做任何机构有对这个问题的想法？ ： - ）

does any body has idea about this issue? :-)

推荐答案

我碰到这个问题了。要么调用importNode（）或cloneNode（），当我得到这个异​​常。和BTW，在XML我解析/生成未使用的命名空间。

I ran into this problem too. I was getting this exception when calling either importNode() or cloneNode(). And BTW, the XML I was parsing/generating was not using namespaces.

似乎包含在Android的DOM解析器（Apache的和谐）是越野车。请参阅此链接：发行2735：和谐DOM实现越野车和不合规。如果使用普通的Java 1.6（这是不是基于课程的和谐）执行相同的code，一切工作正常。

It seems that the DOM parser (from Apache Harmony) that is included in Android is buggy. See this link: Issue 2735: Harmony DOM implementation is buggy and noncompliant. Everything works fine if the same code is executed using plain Java 1.6 (which isn't based on Harmony of course).

我试着设置上的DocumentBuilder setNamespaceAware（真），但这并没有帮助。

I tried setting setNamespaceAware(true) on the DocumentBuilder, but this did not help.

最后，我放弃了，用adoptNode（围绕这一问题的工作），而不是importNode（）。这是一种乱伦，因为它是从一个文档树偷一个节点，并把它变成另一回事。但对我来说，第一个文档树只是暂时的，所以我可以做的事情这样。

Eventually, I gave up and worked around the issue by using adoptNode() rather than importNode(). This is kind of incestuous, because it is stealing a node from one Document tree and putting it into another. But in my case, the first Document tree was only temporary, so I could do things this way.

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