querymessagedo.java

一个bbs论坛系统

package com.lovo.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;

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

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

public class QueryMessageDO 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");
		
		String msgIdStr = request.getParameter("msgId");
		int msgId = 0;
		if(msgIdStr.matches("\\d+")) {
			msgId = Integer.parseInt(msgIdStr);
		} else {
			response.sendRedirect("../web/error.jsp");
			return;
		}
		
		try {
			MessagePO message = BOFactory.getMessageBOInstance().queryById(msgId);
			message.setReadFlag(1);
			BOFactory.getMessageBOInstance().update(message);
			UserPO sendUser = BOFactory.getUserBOInstance().queryById(message.getSendUser().getId());
			message.setSendUser(sendUser);
			request.setAttribute("message", message);
			request.getRequestDispatcher("../web/jsp/messageInfo.jsp").forward(request, response);
		} catch (SQLException e) {
			e.printStackTrace();
			response.sendRedirect("../web/error.jsp");
		}
	}
}