showreply.java

一个很好的BBS论坛项目

package com.ibm.control;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.Iterator;

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

import com.ibm.common.DBConnection;
import com.ibm.service.ReplyService;
import com.ibm.service.UsersService;
import com.ibm.vo.ReplyVO;
import com.ibm.vo.TopicVO;
import com.ibm.vo.UsersVO;

public class ShowReply extends HttpServlet {

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

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

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		HttpSession session = request.getSession();
		
		int topicid = Integer.parseInt(request.getParameter("topicid"));
		
		Connection conn = DBConnection.getInstance().getConnection();
		
		ArrayList userlist = new ArrayList();
		ArrayList replylist = (ArrayList)ReplyService.getInstance().queryAllReply(conn);
		
		Iterator it = replylist.iterator();
		while(it.hasNext())
		{
			ReplyVO rvo = (ReplyVO)it.next();
			int uid = rvo.getUid();
			System.out.println("dffffffffffff"+uid);
			Connection conn1 = DBConnection.getInstance().getConnection();
			UsersVO uvo = UsersService.getInstance().queryById(conn1, uid);
			userlist.add(uvo);
		}
		
		session.setAttribute("replylist", replylist);
		session.setAttribute("userlist", userlist);
		response.sendRedirect("detail.jsp");
		
		
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}