?? mp3playerservice.java
字號:
package com.ajaxlab.ajax;
import java.io.*;
import java.util.*;
import org.jdom.*;
import org.jdom.output.*;
public class MP3PlayerService {
private Map mp3Playeres;
/**
* 構造函數，初始化產品數據
*
*/
public MP3PlayerService() {
mp3Playeres = new HashMap();
MP3Player mp31 = new MP3Player();
mp31.setProductName("A3800");
mp31.setProductColor("黑色");
mp31.setCapability("256M");
mp31.setInterfaceType("USB2.0");
mp31.setScreenType("單色屏幕");
mp31.setRecord("有");
mp31.setStraightRecord("有");
mp31.setFm("有");
mp31.setBattery("內置鋰電池，可充電");
mp31.setEbookFunc("無");
mp31.setGameFunc("有");
mp31.setPlayAvailable("15個小時");
mp31.setWeight("34g");
mp31.setFileSupported("支持WMA/MP3/WAV多種音樂格式");
mp31.setVoiceEffect("SRS、WOW、TruBass");
mp31.setOutputPower("24mW");
mp31.setFrequencyScope("20Hz-20KHz");
mp31.setImagePath("../images/mp31.jpg");
mp31.setPrice("499");
MP3Player mp32 = new MP3Player();
mp32.setProductName("A3901");
mp32.setProductColor("銀白色");
mp32.setCapability("512M");
mp32.setInterfaceType("USB2.0");
mp32.setScreenType("OLED屏幕");
mp32.setRecord("有");
mp32.setStraightRecord("有");
mp32.setFm("有");
mp32.setBattery("內置鋰電池，可充電");
mp32.setEbookFunc("有");
mp32.setGameFunc("有");
mp32.setPlayAvailable("12個小時");
mp32.setWeight("40g");
mp32.setFileSupported("支持MP3/WAV音樂格式");
mp32.setVoiceEffect("SRS、TruBass");
mp32.setOutputPower("25mW");
mp32.setFrequencyScope("20Hz-20KHz");
mp32.setImagePath("../images/mp32.jpg");
mp32.setPrice("699");
mp3Playeres.put(mp31.getProductName(),mp31);
mp3Playeres.put(mp32.getProductName(),mp32);
}
/**
* 獲取全部MP3播放器
* @return
*/
public MP3Player[] getAllMP3Player() {
return (MP3Player[])this.mp3Playeres.values().toArray(new MP3Player[0]);
}
/**
* 獲取指定的MP3播放器
* @param productName
* @return
*/
public MP3Player getMP3Player(String productName) {
Iterator iterator = mp3Playeres.values().iterator();
do {
MP3Player mp3Player = (MP3Player)iterator.next();
if(productName.equalsIgnoreCase(mp3Player.getProductName()))
return mp3Player;
}while(iterator.hasNext());
return null;
}
/**
* 將指定名稱的產品信息輸出為XML文檔
* @param out
* @param productName
* @throws Exception
*/
public void outputProductInfo(PrintWriter out, String productName) throws Exception {
Document doc = new Document();
Element root = new Element("products");
Iterator iterator = mp3Playeres.values().iterator();
do {
MP3Player mp3Player = (MP3Player)iterator.next();
if(productName.equalsIgnoreCase(mp3Player.getProductName().trim())) {
Element element = new Element("mp3Player");
element.addContent(new Element("productName").
addContent(mp3Player.getProductName()));
element.addContent(new Element("productColor").
addContent(mp3Player.getProductColor()));
element.addContent(new Element("capability").
addContent(mp3Player.getCapability()));
element.addContent(new Element("interfaceType").
addContent(mp3Player.getInterfaceType()));
element.addContent(new Element("screenType").
addContent(mp3Player.getScreenType()));
element.addContent(new Element("record").
addContent(mp3Player.getRecord()));
element.addContent(new Element("straightRecord").
addContent(mp3Player.getStraightRecord()));
element.addContent(new Element("fm").
addContent(mp3Player.getFm()));
element.addContent(new Element("battery").
addContent(mp3Player.getBattery()));
element.addContent(new Element("ebookFunc").
addContent(mp3Player.getEbookFunc()));
element.addContent(new Element("gameFunc").
addContent(mp3Player.getGameFunc()));
element.addContent(new Element("playAvailable").
addContent(mp3Player.getPlayAvailable()));
element.addContent(new Element("weight").
addContent(mp3Player.getWeight()));
element.addContent(new Element("fileSupported").
addContent(mp3Player.getFileSupported()));
element.addContent(new Element("voiceEffect").
addContent(mp3Player.getVoiceEffect()));
element.addContent(new Element("outputPower").
addContent(mp3Player.getOutputPower()));
element.addContent(new Element("frequencyScope").
addContent(mp3Player.getFrequencyScope()));
element.addContent(new Element("imagePath").
addContent(mp3Player.getImagePath()));
element.addContent(new Element("price").
addContent(mp3Player.getPrice()));
root.addContent(element);
}
}while(iterator.hasNext());
doc.addContent(root);
XMLOutputter outputter =
new XMLOutputter(Format.getPrettyFormat().setEncoding("ISO8859-1"));
try {
outputter.output(doc,out);
}catch(IOException ex) {
}
}
/**
* 將全部產品信息輸出為XML文檔
* @param out
* @throws Exception
*/
public void output(PrintWriter out, Map mp3Playeres) throws Exception {
Document doc = new Document();
Element root = new Element("products");
if(mp3Playeres.values().size()!=0) {
Iterator iterator = mp3Playeres.values().iterator();
do {
MP3Player mp3Player = (MP3Player)iterator.next();
Element element = new Element("mp3Player");
element.addContent(new Element("productName").addContent(mp3Player.getProductName()));
element.addContent(new Element("productColor").addContent(mp3Player.getProductColor()));
element.addContent(new Element("capability").addContent(mp3Player.getCapability()));
element.addContent(new Element("interfaceType").addContent(mp3Player.getInterfaceType()));
element.addContent(new Element("screenType").addContent(mp3Player.getScreenType()));
element.addContent(new Element("record").addContent(mp3Player.getRecord()));
element.addContent(new Element("straightRecord").addContent(mp3Player.getStraightRecord()));
element.addContent(new Element("fm").addContent(mp3Player.getFm()));
element.addContent(new Element("battery").addContent(mp3Player.getBattery()));
element.addContent(new Element("ebookFunc").addContent(mp3Player.getEbookFunc()));
element.addContent(new Element("gameFunc").addContent(mp3Player.getGameFunc()));
element.addContent(new Element("playAvailable").addContent(mp3Player.getPlayAvailable()));
element.addContent(new Element("weight").addContent(mp3Player.getWeight()));
element.addContent(new Element("fileSupported").addContent(mp3Player.getFileSupported()));
element.addContent(new Element("voiceEffect").addContent(mp3Player.getVoiceEffect()));
element.addContent(new Element("outputPower").addContent(mp3Player.getOutputPower()));
element.addContent(new Element("frequencyScope").addContent(mp3Player.getFrequencyScope()));
element.addContent(new Element("imagePath").addContent(mp3Player.getImagePath()));
element.addContent(new Element("price").addContent(mp3Player.getPrice()));
root.addContent(element);
}while(iterator.hasNext());
}
doc.addContent(root);
//將文檔輸出到控制臺
XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat().setEncoding("ISO8859-1"));
// XMLOutputter outputter = new XMLOutputter();
try {
outputter.output(doc,out);
}catch(IOException ex) {
}
}
/**
* 將購物車中的產品以XML文檔的格式輸出
* @param out
* @param productOrdered
* @throws Exception
*/
public void outputCar(PrintWriter out, Map productOrdered)throws Exception {
Document doc = new Document();
Element root = new Element("orders");
Iterator iterator = productOrdered.values().iterator();
float totalPrice = 0;
if(productOrdered.values().size()!=0) {
do {
ProductOrdered po = (ProductOrdered)iterator.next();
Element element = new Element("order");
element.addContent(new Element("productName").addContent(po.getProductName()));
element.addContent(new Element("count").addContent(String.valueOf(po.getCount())));
element.addContent(new Element("price").addContent(po.getPrice()));
totalPrice = totalPrice + Float.parseFloat(po.getPrice())*po.getCount();
root.addContent(element);
}while(iterator.hasNext());
}
if(totalPrice!=0) root.addContent(new Element("totalPrice").addContent(String.valueOf(totalPrice)));
doc.addContent(root);
//將文檔輸出到控制臺
XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat().setEncoding("ISO8859-1"));
// XMLOutputter outputter = new XMLOutputter();
try {
outputter.output(doc,out);
}catch(IOException ex) {
}
}
public void outputNode() throws Exception {
Document doc = new Document();
Element root = new Element("orders");
Element element = new Element("order");
element.addContent(new Element("productName").addContent("A3800"));
element.addContent(new Element("count").addContent("1"));
element.addContent(new Element("price").addContent("499"));
root.addContent(element);
root.addContent(new Element("totalPrice").addContent(String.valueOf(499)));
doc.addContent(root);
XMLOutputter outputter = new XMLOutputter();
try {
outputter.output(doc,System.out);
}catch(IOException ex) {
}
}
public static void main(String[] args) {
MP3PlayerService service = new MP3PlayerService();
try {
service.outputNode();
}catch(Exception ex) {
}
}
}
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