Myhandler

package com.heli.xml.sax;/*** 用SAX解析XML的Handler*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;public class Myhandler extends DefaultHandler {// 存储正在解析的元素的数据private Map<String, String> map = null;// 存储所有解析的元素的数据private List<Map<String, String>> list = null;// 正在解析的元素的名字String currentTag = null;// 正在解析的元素的元素值String currentValue = null;// 开始解析的元素String nodeName = null;public Myhandler(String nodeName) {// TODO Auto-generated constructor stubthis.nodeName = nodeName;}public List<Map<String, String>> getList() {return list;}// 开始解析文档，即开始解析XML根元素时调用该方法@Overridepublic void startDocument() throws SAXException {// TODO Auto-generated method stub//System.out.println("--startDocument()--");// 初始化Maplist = new ArrayList<Map<String, String>>();}// 开始解析每个元素时都会调用该方法@Overridepublic void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {// TODO Auto-generated method stub// 判断正在解析的元素是不是开始解析的元素//System.out.println("--startElement()--" + qName);if (qName.equals(nodeName)) {map = new HashMap<String, String>();}// 判断正在解析的元素是否有属性值,如果有则将其全部取出并保存到map对象中，如:<person id="00001"></person>if (attributes != null && map != null) {for (int i = 0; i < attributes.getLength(); i++) {map.put(attributes.getQName(i), attributes.getValue(i));}}currentTag = qName; // 正在解析的元素}// 解析到每个元素的内容时会调用此方法@Overridepublic void characters(char[] ch, int start, int length) throws SAXException {// TODO Auto-generated method stub//System.out.println("--characters()--");if (currentTag != null && map != null) {currentValue = new String(ch, start, length);// 如果内容不为空和空格，也不是换行符则将该元素名和值和存入map中if (currentValue != null && !currentValue.trim().equals("") && !currentValue.trim().equals("\n")) {map.put(currentTag, currentValue);//System.out.println("-----" + currentTag + " " + currentValue);}// 当前的元素已解析过，将其置空用于下一个元素的解析currentTag = null;currentValue = null;}}// 每个元素结束的时候都会调用该方法@Overridepublic void endElement(String uri, String localName, String qName) throws SAXException {// TODO Auto-generated method stub//System.out.println("--endElement()--" + qName);// 判断是否为一个节点结束的元素标签if (qName.equals(nodeName)) {list.add(map);map = null;}}// 结束解析文档，即解析根元素结束标签时调用该方法@Overridepublic void endDocument() throws SAXException {// TODO Auto-generated method stub//System.out.println("--endDocument()--");super.endDocument();}
}

SaxService

package com.heli.xml.sax;/*** 封装解析业务类*/
import java.util.List;
import java.util.Map;import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;public class SaxService {public static List<Map<String, String>> ReadXML(String uri, String NodeName) {try {// 创建一个解析XML的工厂对象SAXParserFactory parserFactory = SAXParserFactory.newInstance();// 创建一个解析XML的对象SAXParser parser = parserFactory.newSAXParser();// 创建一个解析助手类Myhandler myhandler = new Myhandler("uncall");parser.parse(uri, myhandler);return myhandler.getList();} catch (Exception e) {e.printStackTrace();} finally {}return null;}
}

XmlSaxTest

package com.heli.xml.sax;/*** 程序入口*/import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;public class XmlSaxTest {/*** @param args*/public static void main(String[] args) {ArrayList<Map<String, String>> list = (ArrayList<Map<String, String>>) SaxService.ReadXML("e:\\test.xml", "class");for (int i = 0; i < list.size(); i++) {HashMap<String, String> temp = (HashMap<String, String>) list.get(i);Iterator<String> iterator = temp.keySet().iterator();while (iterator.hasNext()) {String key = iterator.next().toString();String value = temp.get(key);System.out.println("key:"+key + "--value:" + value );}}System.out.println("--------------------------------------");System.out.println(list.toString());}}

test.xml

<?xml version="1.0" encoding="utf-8"?>
<uncall><result>1</result><OnClickCall><Response>success</Response><ActionID>123456</ActionID><Message>Originate successfully queued</Message></OnClickCall>
</uncall>