usemessagebean.java

java 开发工具书上的一些代码

/*
 * UseMessageBean.java
 *
 * Created on 2006年5月1日, 下午10:52
 */

package com.netbeans.web;

import java.io.*;
import java.net.*;

import javax.servlet.*;
import javax.servlet.http.*;

/**
 *
 * @author boyingking
 * @version
 */
public class UseMessageBean extends HttpServlet {
    
    /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=gb2312");
        PrintWriter out = response.getWriter();
        HttpSession session=request.getSession();
            MessageBean messagebean=(MessageBean)session.getAttribute("message");//从session中获取JavaBean对象
            out.println("<h4>在Servlet中查看JavaBean中的内容：<br>");
            out.println("用户呢称："+messagebean.getNickName()+"<br>");
            out.println("留言标题："+messagebean.getTitle()+"<br>");
            out.println("OICQ号码："+messagebean.getOICQ()+"<br>");
            out.println("留言内容<br>");
            out.println("<textarea cols=30 rows=5 name=backMessages>");
            out.println(messagebean.getContent());
            out.println("</textarea><br>");
            out.println("<a href=showmessage.jsp>在JSP中查看JavaBean中数据</a>");
            out.close();        
    }
    
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}