package com.imooc.servlet.servletcontext;

import java.io.IOException;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

 * Servlet implementation class ServletContextDefaultServlet

 */

@WebServlet("/servletcontext/default")

public class ServletContextDefaultServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

    /**

     * @see HttpServlet#HttpServlet()

     */

    public ServletContextDefaultServlet() {

        super();

        // TODO Auto-generated constructor stub

    }

/**

* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

*/

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

ServletContext context = (ServletContext)request.getServletContext();

String copyright = (String)context.getAttribute("copyright");

String title = (String)context.getAttribute("title");

response.setContentType("text/html;charset=utf-8");

response.getWriter().println("<h1>" + title + "</h1>" + copyright);

}

}

package com.imooc.servlet.servletcontext;

import java.io.IOException;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

 * Servlet implementation class ServletContextInitServlet

 */

@WebServlet("/servletcontext/init")

public class ServletContextInitServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

    /**

     * @see HttpServlet#HttpServlet()

     */

    public ServletContextInitServlet() {

        super();

        // TODO Auto-generated constructor stub

    }

/**

* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

*/

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

ServletContext context = request.getServletContext();

context.setAttribute("copyright","© 2019 imooc.com All Rights Reserved | 京ICP备 12003892号-11");

context.setAttribute("title", "慕课网-程序员的梦工厂");

response.setContentType("text/html;charset=utf-8");

response.getWriter().println("init success");

}

}