Servlet统计访问网站次数

作者: 神坛下的我 | 来源:发表于2018-08-21 10:26 被阅读0次

UseServlet.java

ServletContext context = getServletContext();
        Integer count = (Integer)context.getAttribute("counter");
        if(count==null){
            count=1;
            context.setAttribute("counter", count);
        }else {
            context.setAttribute("counter", count+1);
        }
        resp.setContentType("text/html");
        resp.setCharacterEncoding("utf-8");
        PrintWriter out = resp.getWriter();
        out.println("<!DOCTYPE>");
        out.println("<html>");
        out.println("<head><title>统计网站访问次数</title></head>");
        out.println("<body>");
        out.println("<h2><font color='gray'>");
        out.println("您是第 "+context.getAttribute("counter")+" 位访客！ ");
        out.println("</font></h2>");
        out.println("</body>");
        out.println("</html>");