flowcontrol.java

java电信经典-学习例子源代码

package global;

import java.io.IOException;

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

import org.apache.struts.action.ActionServlet;

public class FlowControl extends ActionServlet {

	@Override
	protected void process(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException {
		request.setCharacterEncoding("gb2312");
		response.setCharacterEncoding("gb2312");	
		String path=request.getServletPath();
		if(path.equals("/login.do")){
			//清空所有的session与Cookie			
			Cookie[]  cooks=request.getCookies();
			for(Cookie cook:cooks){
				cook.setMaxAge(0);
				response.addCookie(cook);
			}
			request.getSession().invalidate();
		}
		//对没有登录的数据进行过滤
		if(!(path.equals("/login.do") || path.equals("/verify.do") || path.equals("/index.jsp"))){
			//没有登录则转向
			if(request.getSession().getAttribute("adminid")==null){
				response.sendRedirect(request.getContextPath()+"/login.do");
				return;
			}
		}
			
		super.process(request, response);
		
	}
	
}