adminloginfilter.java

来自「我的智囊团,学习三种框架很好的源码包含分页.」· Java 代码 · 共 36 行

package org.lxh.myzngt.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;

public class AdminLoginFilter implements Filter {

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

	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest) arg0;
		if (req.getSession().getAttribute("adminid") != null) {
			arg2.doFilter(arg0, arg1);
		} else {
			req.getRequestDispatcher("forward.htm").forward(arg0, arg1) ;
		}
	}

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

	}

}