loginfilter.java

来自「针对网络跑步爱好者作为用户而开发的」· Java 代码 · 共 38 行

package com.briup.run.web.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 javax.servlet.http.HttpSession;
import com.briup.run.dao.bean.MemberInfo;

public class LoginFilter implements Filter {

	public void destroy() {
		
	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse res = (HttpServletResponse) response;
		HttpSession session = req.getSession();
		MemberInfo member = null;
		member = (MemberInfo) session.getAttribute("member");
		if (member == null) {
			res.sendRedirect(req.getContextPath() + "/index.jsp");
		} else {
			chain.doFilter(req, res);
		}
	}
	public void init(FilterConfig arg0) throws ServletException {
	
	}
}