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  1 servletʵÏÖ
public class Welcome extends HttpServlet {
  int num = 1;
  public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
              throws ServletException, IOException {
    response.setContentType("text/html; charset=ISO-8859-1");
    PrintWriter out = response.getWriter();
    Date d = new Date();
    out.println("<html>");
    out.println("<head><title>Welcome Servlet</title></head>");
    out.println("<body>");
    out.println("Today is : " + new Date() + "<P>");
    out.println("Visitors : " + num );
    num++;
    out.println("</body></html>");
    out.close();
2£¬ÓÃjspʵÏÖ
<%@ page import="java.text.*, java.util.*" %>
<html>
<head><title>Welcome JSP</title></head>
<%! int num = 1; %>
<body>
Today is : <%= new Date() %><p>
Visitors : <%= num++ %>
</body>
</html>
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