checkmanage.java

来自「新闻发布系统 jsp制作。可应用与毕业设计」· Java 代码 · 共 52 行

package com.newsIssueSystem.filter;

import java.io.IOException;

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

public class CheckManage implements Filter {

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

	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		// TODO Auto-generated method stub
		HttpServletRequest request = (HttpServletRequest) arg0;
		HttpSession session = request.getSession();

		if (session.getAttribute("isLoginSuccess")!= null) {

			boolean islogin = Boolean.parseBoolean( session.getAttribute("isLoginSuccess").toString());

			if (islogin) {
				arg2.doFilter(arg0, arg1);
			} else {
				RequestDispatcher rd = arg0.getRequestDispatcher("main.jsp");
				rd.forward(arg0, arg1);
			}
		}
		else{
			RequestDispatcher rd = arg0.getRequestDispatcher("main.jsp");
			rd.forward(arg0, arg1);
		}

	}

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

	}

}