querymessagesdo.java

一个bbs论坛系统

package com.lovo.servlet;

import java.io.IOException;
import java.util.List;

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.lovo.factory.BOFactory;
import com.lovo.po.MessagePO;
import com.lovo.po.UserPO;

public class QueryMessagesDO extends HttpServlet {
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		this.doPost(request, response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		response.setCharacterEncoding("utf-8");
		
		HttpSession session = request.getSession(true);
		String userIdStr = request.getParameter("userId");
		String home = request.getParameter("home");
		
		int userId = 0;
		if(userIdStr.matches("\\d+")) {
			userId = Integer.parseInt(userIdStr);
		} else {
			session.setAttribute("errorInfo", "传输数据错误");
			response.sendRedirect("../web/error/jsp");
			return;
		}
		
		List<MessagePO> msgList = BOFactory.getMessageBOInstance().queryMsgByReceiverId(userId);
		for(int i=0; i<msgList.size(); i++) {
			MessagePO message = msgList.get(i);
			UserPO sender = BOFactory.getUserBOInstance().queryById(message.getSendUser().getId());
			message.setSendUser(sender);
		}
		session.setAttribute("msgList", msgList);
		if(home == null) {
			response.sendRedirect("../web/jsp/messages.jsp");
		} else {
			response.sendRedirect("../web/jsp/homemessages.jsp");
		}
		
	}
}