how to edit xml text value?
i would like modify text of xml tag value i have used an xml as follows
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
here i would like to change the from name Jani as prasad.how can i chage that by using java code
i have written a java code as follows
try{
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.parse(new File("/mnt/sdcard/one.xml"));
//Get the staff element by tag name directly
Node nodes = doc.getElementsByTagName("note").item(0);
//loop the staff child node
NodeList list = nodes.getChildNodes();
for (int i =0; i<list.getLength();i++){
Node node = list.item(i);
//get the salary element, and update the value
if("from".equals(nodes.getNodeName())){
node.setNodeValue("prasad");
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
开发者_JAVA技巧 DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("/mnt/sdcard/one.xml"));
transformer.transform(source, result);
}
}
}
catch (Exception e) {
e.printStackTrace();
}
There is problem in your code: "Jani" is a text node with parent element node "from". So you should change value of the text node.
...
for (int i =0; i<list.getLength();i++) {
Node node = list.item(i);
//get the salary element, and update the value
if("from".equals(node.getNodeName())){
Text text = (Text) ((Element) node).getChildNodes().item(0);
text.setNodeValue("prasad");
}
}
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("/mnt/sdcard/one.xml"));
transformer.transform(source, result);
...
And I think RegExp would be much easier for this task
"your xml as string".replaceAll("<from>.*?</from>", "<from>prasad</from>");
There are several different examples available.
Writing XML on Android This seems to have the best samples.
Other hits: How to rewrite or modify XML in android 2.1 version
Load and modify xml file in Android
加载中,请稍侯......
精彩评论