Android XML数据解析简单示例

<?xml version="1.0" encoding="utf-8"?>
<data>
    <class>
        <c studentnum="1">android</c>
        <c studentnum="2">iphone</c>
    </class>
</data>

import java.io.ioexception;
import java.io.inputstream;

import javax.xml.parsers.documentbuilder;
import javax.xml.parsers.documentbuilderfactory;
import javax.xml.parsers.parserconfigurationexception;

import org.w3c.dom.document;
import org.w3c.dom.namednodemap;
import org.w3c.dom.node;
import org.w3c.dom.nodelist;
import org.xml.sax.saxexception;

import android.os.bundle;
import android.app.activity;

public class mainactivity extends activity {

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);
  
  inputstream is = getresources().openrawresource(r.raw.data);
  try {
   byte[] bytes = new byte[is.available()];
   is.read();
   string xmlstr = new string(bytes,"utf-8");
   is.reset();
   system.out.println(xmlstr);
   
   documentbuilder builder = documentbuilderfactory.newinstance().newdocumentbuilder();
   document doc = builder.parse(is);
   
   node node = doc.getfirstchild();
   system.out.println("第一个子节点"+node.getnodename());
   nodelist list = doc.getelementsbytagname("c");
   namednodemap map;
   for(int i = 0; i < list.getlength(); i++)
   {
    node = list.item(i);
    map = node.getattributes();
    system.out.println(node.gettextcontent()+"  studentnum  "+map.getnameditem("studentnum").getnodevalue());
   }
   
  } catch (ioexception e) {
   // todo auto-generated catch block
   e.printstacktrace();
  } catch (parserconfigurationexception e) {
   // todo auto-generated catch block
   e.printstacktrace();
  } catch (saxexception e) {
   // todo auto-generated catch block
   e.printstacktrace();
  }
 }
}