50869c30b61d001c11ed88d41da735ca

使用JSP+Servlet+Hibernate+Struts实现的一个学生软件发布平台

package edu.neu.sspp.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import edu.neu.sspp.SSPPLogger;
import edu.neu.sspp.hibernate.TProject;
import edu.neu.sspp.hibernate.TProjectDAO;
import edu.neu.sspp.hibernate.TTeacher;
import edu.neu.sspp.hibernate.TTeacherDAO;
import edu.neu.sspp.hibernate.TUser;

public class TeacherFilter implements Filter{

	  public void doFilter(ServletRequest request, ServletResponse response,
				FilterChain chain) 
      
        throws ServletException, IOException {
			
      HttpServletRequest httpRequest = (HttpServletRequest) request;
      HttpServletResponse httpResponse = (HttpServletResponse) response;

      TTeacherDAO teacherDAO = new TTeacherDAO();
		TTeacher teacher = teacherDAO.findById((String)httpRequest.getSession().getAttribute("id"));
		
   
      	String projectID = request.getParameter("id");

			TProjectDAO projectDAO = new TProjectDAO();
			TProject project = projectDAO.findById(projectID);

			TUser user = project.getTUser();

			if ( request.getParameter("id")==""&&httpRequest.getSession().getAttribute("id") == null)

				{Object loginForm = null;
				SSPPLogger.logInfo(((Object) loginForm).getClass() + " 登陆失败" + " IP:" + request.getRemoteAddr());
				httpResponse.sendRedirect("loginFore.jsp");
				}
			else			
			   
			     chain.doFilter(request, response);
			
		}

		public void init(FilterConfig config) throws ServletException {
		}

		public void destroy() {
		}

	
	
	
}