login.java

辅助办公系统,具有发布公告、站内邮箱、日程安排、日志查看等功能

package com.x3408.office;

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.x3408.employees.UserADO;

public class Login extends HttpServlet {
	
	private static final long serialVersionUID = 1L;

	public Login() {
		super();
	}

	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		HttpSession session=request.getSession();
		String action=request.getParameter("action");
		if("exit".equals(action)){
			session.invalidate();
		}else{
			String employeeID=request.getParameter("employeeID");
			String password=request.getParameter("password");
			String userType=null;
			String originalURL=null;
			if (employeeID==null || password==null || employeeID.equals("")||password.equals("")){
				request.setAttribute("passed", "null");
			}else{
				userType=UserADO.userType(employeeID, password);
				if(userType!=null){
				session.setAttribute("passed",userType);
				session.setAttribute("employeeID", employeeID);
				originalURL=(String)session.getAttribute("originalURL");
				originalURL=originalURL==null?Constants.C_INDEX_JSP:originalURL;
				response.sendRedirect(originalURL);
				return;
				}
				request.setAttribute("passed","false");
			}
		}
		request.getRequestDispatcher(Constants.S_LOGIN_JSP).forward(request,response);
	}
	public void init() throws ServletException {
		// Put your code here
	}

}