deletemsgservlet.java

oa办公系统

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

import java.io.IOException;
import java.io.PrintWriter;

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.ServiceFactory;
import cn.jx.ecjtu.oa.services.UserInSession;

public class DeleteMsgServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public DeleteMsgServlet() {
		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 {
		PrintWriter out = response.getWriter();
		HttpSession session = request.getSession();
		UserInSession user = (UserInSession) session
				.getAttribute(Constant.USER_IN_SESSION);
		String sMsgId = request.getParameter("msgId");
		if (user != null) {

			int userId = user.getId();
			int msgId = -1;
			try {
				msgId = Integer.parseInt(sMsgId);
			} catch (Exception e) {
				msgId = -1;
			}
			msgService.delAccMsg(userId, msgId);
			out.print("<script language='javascript'>window.close()</script>");
		}else{
			out.print("请登陆后再试!");
			
		}
	}

	/**
	 * 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);
	}

}