本文介绍了如何在java中使用jdom从节点中删除子节点?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个xml结构如下:
I have a xml structure as follows:
<rurl modify="0" children="yes" index="8" name="R-URL">
<status>enabled</status>
<rurl-link priority="3">http</rurl-link>
<rurl-link priority="5">http://localhost:80</rurl-link>
<rurl-link priority="4">abc</rurl-link>
<rurl-link priority="3">b</rurl-link>
<rurl-link priority="2">a</rurl-link>
<rurl-link priority="1">newlinkkkkkkk</rurl-link>
</rurl>
现在,我想删除一个子节点,其中text等于http。目前我正在使用此代码:
Now, I want to remove a child node, where text is equal to http. currently I am using this code:
while(subchilditr.hasNext()){
Element subchild = (Element)subchilditr.next();
if (subchild.getText().equalsIgnoreCase(text)) {
message = subchild.getText();
update = "Success";
subchild.removeAttribute("priority");
subchild.removeContent();
}
但它并没有从xml文件中完全删除子元素。它离开了我
But it is not completely removing the sub element from xml file. It leaves me with
<rurl-link/>
有什么建议吗?
推荐答案
你需要这样做:
List<Element> elements = new ArrayList<Element>();
while (subchilditr.hasNext()) {
Element subchild = (Element) subchilditr.next();
if (subchild.getText().equalsIgnoreCase(text)) {
elements.add(subchild);
}
}
for (Element element : elements) {
element.getParent().removeContent(element);
}
如果您尝试删除循环内的元素,您将获得一个 ConcurrentModificationException
。
If you try to remove an element inside of the loop you'll get a ConcurrentModificationException
.
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