有原始xml如下:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<students>
<student>
<name sn="03" sn2="0322"/>
</student>
</students>
我想要得到修改后的結(jié)果為：
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<students>
<student>
<name sn="03" sn2="0322"/>
<name sn="04" sn2="0422"/>
</student>
</students>
我的代碼為：
public static void main(String[] args) {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse("D:/students.xml");
Element eltName = doc.createElement("name");
Attr attr = doc.createAttribute("sn");
attr.setValue("04");
Attr attr2 = doc.createAttribute("sn2");
attr2.setValue("0422");
eltName.setAttributeNode(attr);
eltName.setAttributeNode(attr2);
Element eltRoot=doc.getDocumentElement();
eltRoot.appendChild(eltName);
doc2XmlFile(doc, "D:/students.xml");
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 將Document對象修改后寫入到xml里面
* @param document Document對象
* @param filename xml文件路徑
* @return
*/
public boolean doc2XmlFile(Document document, String filename) {
boolean flag = true;
try {
/** 將document中的內(nèi)容寫入文件中 */
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
/** 編碼 */
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(new File(filename));
transformer.transform(source, result);
} catch (Exception ex) {
flag = false;
System.out.println("更新" + filename + "出錯(cuò)：" + ex);
log.error("更新" + filename + "出錯(cuò)：" + ex);
ex.printStackTrace();
}
return flag;
}
這樣得到的結(jié)果為：
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<students>
<student>
<name sn="03" sn2="0322"/>
</student>
<name sn="04" sn2="0422"/>
</students>
弄了一天了也沒能把添加的name節(jié)點(diǎn)放到student節(jié)點(diǎn)下面，請教各位大俠了！
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java用dom更新xml的問題，怎么在子節(jié)點(diǎn)下添加節(jié)點(diǎn)？
幕布斯6054654
2018-12-07 04:36:14