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我是新的java和android。我有一个XML文件中像这样:如何删除节点列表的子节点?
<?xml version="1.0" encoding="UTF-8"?>
<SendList>
<listdata>
<name>aaaaaa</name>
<message>xfhjj</message>
<tel>1111222</tel>
<icon>list</icon>
</listdata>
<listdata>
<name>bbbbbbbbb</name>
<message>ghjchjxff</message>
<tel>45885367</tel>
<icon>list</icon>
</listdata>
<listdata>
<name>ccccccc</name>
<message>hkggcckj</message>
<tel>46964788</tel>
<icon>list</icon>
</listdata>
</SendList>
我想删除的每个节点,但与此代码我用我收到空指针异常,除了最后一个节点!
Node no = document.getFirstChild();
NodeList nl = no.getChildNodes();
for (int n = 0; n < nl.getLength(); n++) {
Node list = document.getElementsByTagName("listdata").item(n);
NodeList nodes = list.getChildNodes();
for (int i = 0; i < nodes.getLength(); i++) {
Node element = nodes.item(i);
String t = element.getFirstChild().getTextContent();
if (deleteValueName.equals(t)) { \\deleteValueName for example equal aaaaaa OR bbbbbbbbb
if ("name".equals(element.getNodeName())) {
Node nd = element.getParentNode();
Node ndParent = nd.getParentNode();
ndParent.removeChild(nd);
}
}
}
}
请帮帮我!
在什么方面是NPE? – 2014-11-20 18:36:25
In Line“NodeList nodes = list.getChildNodes();” – Choubdar 2014-11-20 18:59:16