VIP31/JavaWeb/servelet04/src/main/java/com/lc/servlet/Session02Servlet.java

package com.lc.servlet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

/**
 * ClassName: Cookie01Servlet
 *
 * @Author 爱扣钉-陈晨
 * @Create 2024/2/23 9:22
 * @Version 1.0
 */
@WebServlet("/session02")
public class Session02Servlet extends HttpServlet {

    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("text/html;charset=utf-8");

        //获取session
        HttpSession session = req.getSession();

        String key = (String) session.getAttribute("key");
        System.out.println("==="+key);
        //重定向
        resp.sendRedirect(req.getContextPath() + "/index.jsp");
    }
}