menuhidden.java

来自「本系统采用JSP技术」· Java 代码 · 共 23 行

/**
 * 该Servlet用于隐藏用户菜单
 */
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;


public class MenuHidden extends HttpServlet{
	public void doGet(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException{
		HttpSession session=request.getSession();
		
		/* 如果session中没有hidden变量，则设置一个；否则保持原状 */
		if(session.getAttribute("hidden")==null){
			session.setAttribute("hidden","hidden");
		}
		
		/* 返回发出请求的页面 */
		String toJsp=request.getParameter("jspURL")+"?"+request.getParameter("param");
		response.sendRedirect(toJsp);
	}
}