setreadstateservlet.java

oa办公系统

package cn.jx.ecjtu.oa.servlets.msg;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Map;

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 cn.jx.ecjtu.oa.common.Constant;
import cn.jx.ecjtu.oa.services.MessageService;
import cn.jx.ecjtu.oa.services.Result;
import cn.jx.ecjtu.oa.services.ResultType;
import cn.jx.ecjtu.oa.services.ServiceFactory;
import cn.jx.ecjtu.oa.services.UserInSession;

public class SetReadStateServlet extends HttpServlet {

	/**
	 * 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 {
		HttpSession session=request.getSession();
        //从session中取得用户id
		int userId=0;
		String smsgId=request.getParameter("setread");
		int msgId=-1;
		UserInSession user=(UserInSession)session.getAttribute(Constant.USER_IN_SESSION);	
		userId=user.getId();
		//调用service的getNewAccMsg获得指定用户的最新未读消息				
		try{//把取得的消息放入request中
			if(smsgId!=null)
			{
				msgId=Integer.parseInt(smsgId);
			}
			else
			{
				msgId=-1;
			}
			msgService.readMsg(userId,msgId );
			PrintWriter out=response.getWriter();
			out.print("<script language='javascript'>window.close()</script>");
		}catch(Exception e){//异常
			request.setAttribute("message", e.getMessage()+"<br/>\n");
			request.getRequestDispatcher("../error.jsp").forward(request, response);
		}
		
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	private MessageService msgService;
	public void init() throws ServletException {
		msgService=(MessageService)ServiceFactory.getService(MessageService.class);
	}

}