ajaxservlet.java

一个用于WEB方式的文本交谈.即N对N方式交谈

package cn.com.sihitech.cc.chat;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.*;

/*
 * 文件名: ajaxServlet.java
 * 创建日期: 2006-4-22
 * 功能说明: 生成XML文档
 */
public class ajaxServlet extends HttpServlet {

    public void destroy() {
        super.destroy();
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        //用get方式发送请求,因此在此处理,
        response.setContentType("text/xml");
        response.setHeader("Cache-Control", "no-cache");
        PrintWriter out = response.getWriter();
        System.out.println("***doGet***");
        String action = request.getParameter("action");
        String msgContent = "";
        HttpSession session = request.getSession();
        if (("send").equals(action)) {
            StringBuffer sb = null;
            MsgContent theMsgContent = new MsgContent();
            if (theMsgContent.list != null) {
                sb = new StringBuffer("<type>");
                for (int i = 0; i < MsgContent.list.size(); i++) {
                    sb.append("<type_name>" + (String) MsgContent.list.get(i) +
                              "</type_name>");
                }
            } else {
                sb = new StringBuffer("<type>");
            }
            sb.append("</type>");

            out.write(sb.toString());
            out.close();
            theMsgContent.list = null;
        }
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        //如果用post方式请求,则在此处理
    }

    public void init() throws ServletException {}
}