erjiliangdong.java

ajax 二级联动 run on the myEclipse tomcat 6.0

package com.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class erjiliangdong extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public erjiliangdong() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/xml");
		response.setHeader("Cache-Control", "no-cache");
		response.setHeader("Charset","UTF-8");
		response.setCharacterEncoding("UTF-8");

		String targetId = request.getParameter("id").toString();
		System.out.println(targetId);
		String xml_start = "<selects>";
		String xml_end = "</selects>";
		String xml = "";
		if (targetId.equalsIgnoreCase("0")) {
			xml = "<select><value>0</value><text>---请选择---</text></select>";
		} else if (targetId.equalsIgnoreCase("1")) {
			xml = "<select><value>1</value><text>Mana Burn</text></select>";
			xml += "<select><value>2</value><text>Death Coil</text></select>";
			xml += "<select><value>3</value><text>Unholy Aura</text></select>";
			xml += "<select><value>4</value><text>Unholy Fire</text></select>";
		} else if (targetId.equalsIgnoreCase("2")) {
			xml = "<select><value>1</value><text>aaaaaaa</text></select>";
			xml += "<select><value>2</value><text>bbbbbbbb</text></select>";
			xml += "<select><value>3</value><text>cccccccc</text></select>";
			xml += "<select><value>4</value><text>dddddddd</text></select>";
		} else {
			xml = "<select><value>1</value><text>Rain of Chaos</text></select>";
			xml += "<select><value>2</value><text>Finger of Death</text></select>";
			xml += "<select><value>3</value><text>Bash</text></select>";
			xml += "<select><value>4</value><text>Summon Doom</text></select>";
		}
		String last_xml = xml_start + xml + xml_end;
		response.getWriter().write(last_xml);

	}

	public void init() throws ServletException {
		// Put your code here
	}

}