XML 文件解析 SAXParserFactory

1、XML文件userinfo.xml 可以放到assets文件夹下或者包下面

<?xml version="1.0" encoding="UTF-8"?>
<admins>
    <admin id="1">
        <name>于美光</name>
        <age>25</age>
        <address>NanJing</address>
        <phone>18855529592</phone>
    </admin>
     <admin id="2">
        <name>于美光</name>
        <age>25</age>
        <address>NanJing</address>
        <phone>18855529592</phone>
    </admin>
</admins>

public class User {
	private int id;
	private String name;
	private String address;
	private int age;
	private String phone;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String getPhone() {
		return phone;
	}
	public void setPhone(String phone) {
		this.phone = phone;
	}
	
	
}

public class XmlParser extends DefaultHandler{
	
	private String tagName = null;
	
	private User user = null;
	
	public User getUser() {
		return user;
	}

	public void setUser(User user) {
		this.user = user;
	}

	@Override
	public void startDocument() throws SAXException {
		user = new User();
	}
	
	@Override
	public void startElement(String uri,String localName,String qName,Attributes attributes) throws SAXException {
		tagName = localName;
		if ("admin".equals(tagName)) {
			user.setId(Integer.parseInt(attributes.getValue(0)));
		}
		super.startElement(uri,localName,qName,attributes);
	}
	
	@Override
	public void characters(char[] ch,int start,int length)
			throws SAXException {
		if (tagName != null) {
			if (tagName.equals("name")) {
				String str = new String(ch,start,length);
				user.setName(str);
			}else if(tagName.equals("age")){
				String str = new String(ch,length);
				user.setAge(Integer.parseInt(str));
			}else if(tagName.equals("address")){
				String str = new String(ch,length);
				user.setAddress(str);
			}else if(tagName.equals("phone")){
				String str = new String(ch,length);
				user.setPhone(str);
			}
		}
		super.characters(ch,length);
	}
	
	@Override
	public void endElement(String uri,String qName)
			throws SAXException {
		tagName = null;
		super.endElement(uri,qName);
	}
	
	@Override
	public void endDocument() throws SAXException {
		super.endDocument();
	}
	
	
}

public class MainActivity extends Activity {
	private User user;
	private TextView txtUser;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		try {
			parse();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (ParserConfigurationException e) {
			e.printStackTrace();
		} catch (SAXException e) {
			e.printStackTrace();
		}
		txtUser = (TextView)findViewById(R.id.txtUser);
		txtUser.setText(Html.fromHtml("<b>ID:</b>"+user.getId()+"<b>NAME:</b>"+
		"<b>AGE:</b>"+user.getAge()+"<b>Address:</b>"+user.getAddress()+
		"<b>PHONE:</b>PHPNE"+"=+"+user.getPhone()));
	}
	
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.main,menu);
		return true;
	}
	
	private void parse() throws IOException,ParserConfigurationException,SAXException{
		SAXParserFactory spf = SAXParserFactory.newInstance();
		SAXParser sp = spf.newSAXParser();
		XmlParser parser = new XmlParser();
//		InputStream is = this.getResources().getAssets().open("userinfo.xml");//资源文件夹下面的
		InputStream is = this.getClass().getResourceAsStream("userinfo.xml");//和该类同一包下面
		sp.parse(is,parser);
		user = parser.getUser();
	}
}

（编辑：李大同）

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