checklogin.java

NONO一族J2EE新闻系统 采用了目前流行的J2EE技术

package util;


import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class CheckLogin extends HttpServlet {

	public static void isLogin(HttpServletRequest request,HttpServletResponse response){
			HttpSession session = request.getSession(false);
        
				try{
					String isLogin=(String)session.getAttribute("isLogin");
					if(!isLogin.equals("ok"))
					response.sendRedirect("/news/admin/login.htm");
				}/////try
				catch(Exception ex){
					try{
					response.sendRedirect("/news/admin/login.htm");
					throw new IOException(ex.getMessage());
					}catch(IOException ee){}
				}/////catch
			
	}//验证合法性	
	
}//class