XML String parsing in Android?

Question

I use the following code to parse the XML file.

DocumentBuilderFactory factory;
DocumentBuilder builder;
InputStream is;
Document dom;
try {
    factory = DocumentBuilderFactory.newInstance();
    is = new FileInputStream(strFileName);
    builder = factory.newDocumentBuilder();

    dom = builder.parse(is);
}
catch(Exception e){}

Instead of XML file is there any way to parse the String.

String xml="<?xml version="1.0"?> <name> Application</name> <demo> Demo </demo> </xml>";

What you are trying to do is very unclear. If you already have a string - why would you even need a XML parser? — Ofir, Dec 14 '10 at 07:48

score 30 · Accepted Answer · answered Dec 14 '10 at 07:48

30

You can convert your string to an InputStream using ByteArrayInputStream:

String xml ="valid xml here";
InputStream is = new ByteArrayInputStream(xml.getBytes("UTF-8"));

dom = builder.parse(is);

answered Dec 14 '10 at 07:48

kgiannakakis

103,016
27
158
194

i get this problem while using your code java.lang.NullPointerException: Attempt to invoke virtual method 'org.w3c.dom.Document javax.xml.parsers.DocumentBuilder.parse(org.xml.sax.InputSource)' on a null object reference – phrogg Mar 26 '18 at 08:57

Valentin Rocher · Answer 2 · 2011-02-16T22:29:18.627

3

You can use StringReader :

StringReader sr = new StringReader(xml);
InputSource is = new InputSource(sr);
Document d = builder.parse(is);

edited Feb 16 '11 at 22:29

answered Dec 14 '10 at 08:06

Valentin Rocher

11,667
45
59

Should the second line be `InputSource is = new InputSource(sr);` instead? – Bill Carey Feb 16 '11 at 21:48
i get this problem while using your code java.lang.NullPointerException: Attempt to invoke virtual method 'org.w3c.dom.Document javax.xml.parsers.DocumentBuilder.parse(org.xml.sax.InputSource)' on a null object reference – phrogg Mar 26 '18 at 08:56

XML String parsing in Android?

2 Answers2

Linked