delmessagedo.java

一个bbs论坛系统

package com.lovo.servlet;

import java.io.IOException;

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.UserPO;

public class DelMessageDO 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 msgIdStr = request.getParameter("msgId");
		int msgId = 0;
		if(msgIdStr.matches("\\d+")) {
			msgId = Integer.parseInt(msgIdStr);
		} else {
			session.setAttribute("errorInfo", "传输数据错误");
			response.sendRedirect("../web/error/jsp");
			return;
		}
		
		boolean isDel = BOFactory.getMessageBOInstance().delete(msgId);
		if(isDel) {
			response.sendRedirect("QueryMessagesDO?userId=" + ((UserPO)session.getAttribute("user")).getId());
			return;
		} else {
			session.setAttribute("errorInfo", "删除消息失败");
			response.sendRedirect("../web/error/jsp");
			return;
		}
		
	}
}