二、servlet源程序
package com.stephen.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import org.dom4j.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @author stephen
*
* TODO To change the template for this generated type comment go to Window -
* Preferences - Java - Code Style - Code Templates
*/
public class SelectCityServlet extends HttpServlet {
public SelectCityServlet() {
super();
}
public void destroy() {
super.destroy();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setCharacterEncoding("UTF8");
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");
String state = request.getParameter("state");
Document document = DocumentHelper.createDocument();
Element root = document.addElement("state");
Element city = null;
if("zj".equals(state)){
city = root.addElement("city");
city.setText("杭州");
city = root.addElement("city");
city.setText("huzhou");
}else{
city = root.addElement("city");
city.setText("南京");
city = root.addElement("city");
city.setText("苏州");
city = root.addElement("city");
city.setText("yangzhou");
}
PrintWriter out=response.getWriter();
String s = root.asXML();
out.write(s);
out.close();
}
}
来源：http://blog.csdn.net/javatwt
