myhandler.java

来自「j2me简单实例,j2me教程加源码,希望大家喜欢」· Java 代码 · 共 50 行

package com.j2medev.chapter10;

import javax.microedition.lcdui.Form;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class MyHandler extends DefaultHandler{
    
    private Form form = null;
    
    public MyHandler(Form _form) {
        form = _form;
        form.deleteAll();
    }
    
    public void startDocument() throws SAXException {
    }
    
    public void characters(char[] ch, int start, int length) throws SAXException {
        if(length != 0)
            form.append(new String(ch,start,length));
    }
    
    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
        //读取username|email|company字段的值
        if(qName.equals("username") || qName.equals("email")||qName.equals("company")){
            form.append(qName);
            //判断属性是否为空
            int len = attributes.getLength();
            if(len != 0){
                for(int i = 0;i<len;i++){
                    form.append("("+attributes.getQName(i)+attributes.getValue(i)+")");
                }
            }
            form.append(":");
        }
    }
    
    public void endElement(String uri, String localName, String qName) throws SAXException {
        if(qName.equals("username") || qName.equals("email")||qName.equals("company"))
            form.append("\n");
    }
    
    public void endDocument() throws SAXException {
        
    }
    
}