sax解析xml

在assets 中放histore.xml的内容：

<?xml version="1.0" encoding="utf-8"?>
<persons>
<person>
<id>20</id>
<name>李明</name>
<age>30</age>
</person>
<person>
<id>21</id>
<name>手机</name>
<age>25</age>
</person>
</persons>

sax是一个一个person解析出来，再用list.add增加，最后得到一个personlist的，先看Persons.java,

package com.cg.xmldemo;

import android.R.integer;
import android.util.Log;

public class Persions {

public int mid;
public String mname=null;
public int mage ;

public int getId()
{

return mid;
}
public void setId(int id)
{
this.mid=id;

}
public String getName()
{
return mname;
}
public void setName(String name)
{
this.mname=name;
}
public int getAge()
{
return mage;
}
public void setAge(int age)
{
this.mage=age;

}
public String tostring()
{
String ret="id:" + mid + ", name:"+ mname+ ",age:" + mage;
return ret;
}

}
persons.java的目的是为是在解析时每个xml中的person对应 一个person对象为最终的list服务。

以下为saxpersoncontenHandle.java,解析xml过程

package com.cg.xmldemo;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

import android.util.Log;

import org.xml.sax.Attributes;



public class SaxPersonsContentHandler extends DefaultHandler{

private List personsList;
private Persions person;
private String tagName;

public List getPersons()
{
return this.personsList;
}
public void startDocument() throws SAXException{
this.personsList=new ArrayList();
}

public void characters (char[] ch,int start,int length) throws SAXException{
if(this.tagName!=null)
{
String data =new String(ch,start,length);
if(this.tagName.equals("id")){
person.setId(Short.parseShort(data));
}else if(this.tagName.equals("name")){
person.setName(data);
}else if(this.tagName.equals("age")){
person.setAge(Short.parseShort(data));
}
}
}
public void startElement(String uri, String localName, String qName,Attributes attributes) throws SAXException{

if(localName.equals("person")){
person = new Persions();
}
this.tagName=localName;
}
public void endElement(String uri,String localName,String qName) throws SAXException{
if(localName.equals("person")){
this.personsList.add(this.person);
}
this.tagName=null;
}
public static List<Persions> readXML(InputStream inStream) {
try {
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser saxParser = spf.newSAXParser(); //创建解析器
SaxPersonsContentHandler handler = new SaxPersonsContentHandler();
saxParser.parse(inStream, handler);
inStream.close();
return handler.getPersons();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}

测试：

package com.cg.xmldemo;

import java.io.InputStream;
import java.util.List;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import android.app.Activity;
import android.os.Bundle;
import android.test.AndroidTestCase;
import android.util.Log;

public class Xml_demoActivity extends Activity {
/** Called when the activity is first created. */

private PersonParser parser;
private List<Persions> perions;

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
testAndroidSaxReadXML();
} catch (Throwable e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//测试程序
public void testAndroidSaxReadXML() throws Throwable{
InputStream file = getAssets().open("histore.xml");//this.getClass().getClassLoader().getResourceAsStream("histore.xml");
if(file==null)
{

return ;
}
try {
perions=SaxPersonsContentHandler.readXML(file);
// Log.v("=================","perions.size= " + perions.size());
for (int i=0;i<perions.size();i++)
{
//perions.get(i).tostring();
Log.v("=================","perions("+i+"): " + perions.get(i).tostring());
}
} catch (Exception e) {
Log.e("================", e.toString());
}
}



}