adminsecurityfilter.java

网上购物系统struts+spring+hibernate实现

package com.sdi0708.bdifn.bookstore.service.util;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class AdminSecurityFilter extends HttpFilter {


	@Override
	public void doFilter(HttpServletRequest req, HttpServletResponse resp,
			FilterChain chain) throws IOException, ServletException {
		final String[] defaultPath = {"/admin/index", "/admin/login"};
	
		if(req.getSession().getAttribute("admin") != null) {
			//如果已登陆了,可以执行访问
			chain.doFilter(req, resp);
			return;
		} 
		String sPath = req.getServletPath();
		String path = sPath.substring(0, sPath.lastIndexOf('.'));
		for(String s : defaultPath) {
			if(s.equals(path)) {
				System.out.println("aaaa");
				chain.doFilter(req, resp);
				return;
			}
		}
		//如果还没有登陆,直接跳到登陆页面
		resp.sendRedirect(req.getContextPath() + "/admin/index.jsp");
	}

}