import java.io.IOException;  
  
import javax.servlet.ServletException;  
import javax.servlet.http.Cookie;  
import javax.servlet.http.HttpServlet;  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
  
public class LoginServlet extends HttpServlet {  
  
  
    public void doGet(HttpServletRequest request, HttpServletResponse response)  
            throws ServletException, IOException {  
        this.doPost(request, response);  
    }  
  
    public void doPost(HttpServletRequest request, HttpServletResponse response)  
            throws ServletException, IOException {  
         String username=request.getParameter("username");  
           String password=request.getParameter("password");  
           String savetime=request.getParameter("saveTime");  
           if(LoginService.login(username, password)){  
               if(null!=savetime&&!savetime.isEmpty()){  
                   int saveTime=Integer.parseInt(savetime);//这里接受的表单值为天来计算的  
                   int seconds=saveTime*24*60*60;  
                   Cookie cookie = new Cookie("user", username+"=="+password);  
                   cookie.setMaxAge(seconds);                     
                   response.addCookie(cookie);  
               }  
               request.setAttribute("username",username);  
               request.getRequestDispatcher("/main.jsp").forward(request,response);  
           }else{  
               request.getRequestDispatcher("/index.jsp").forward(request,response);  
           }  
    }  
  
}