addresshandler.java

该系统是一个基于p2p的即时聊天系统

/*
 * @(#) AddressHandler.java
 * Copyright 2004 HWStudio. All rights reserved.
 */
package hws.item.smart.utility.admin;
//导入核心Java类库
import java.io.IOException;
import java.io.StringReader;
//导入自定义Java类库
import hws.item.smart.panel.function.admin.AddressPanel;
//导入第三方Java类库
import org.jdom.Element;
import org.jdom.Document;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;
/**
 * 地址处理器
 *
 * @version 0.1 2005-08-07
 * @author Hwerz
 */
public class AddressHandler extends Object {
    /*------------------------------------------------------------------------*
     *                                公共方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 地址信息
     *
     * @param requestMsg 地址信息的请求信息
     * @return 地址信息的响应信息
     */
    public String address(String requestMsg) {
        Element response = new Element("Response");
        try {
            SAXBuilder builder = new SAXBuilder();
            StringReader reader = new StringReader(requestMsg);
            Document document = builder.build(reader);
            Element request = document.getRootElement();
            String id = request.getChild("ID").getText();
            Element ip = new Element("IP");
            ip.setText(AddressPanel.getInstance().getIP(id));
            response.addContent(ip);
        } catch (JDOMException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        XMLOutputter outputter = new XMLOutputter();
        return outputter.outputString(new Document(response));
    }
}