constructfilter.java

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package cn.handson.utils;

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 javax.servlet.http.HttpSession;

import cn.handson.base.Employee;

public class ConstructFilter implements Filter {

	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub

	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		// TODO Auto-generated method stub
		HttpServletRequest httpRequest = (HttpServletRequest) arg0;
		HttpServletResponse httpResponse = (HttpServletResponse) arg1;
		HttpSession session = httpRequest.getSession();
		Employee str = (Employee) session.getAttribute("Login");
		
		if (str.getDepart().getDepartId()!=3) {
			httpResponse.sendRedirect(httpRequest.getContextPath() + "/"
					+ "welcome.jsp");
		} else {
			arg2.doFilter(arg0, arg1);
		}
	}

	public void destroy() {
		// TODO Auto-generated method stub

	}

}