accessrecorderservlet.java

来自「java网络编程技术内幕程序代码」· Java 代码 · 共 41 行

JAVA
41 行
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/* * Java Network Programming, Second Edition * Merlin Hughes, Michael Shoffner, Derek Hamner * Manning Publications Company; ISBN 188477749X * * http://nitric.com/jnp/ * * Copyright (c) 1997-1999 Merlin Hughes, Michael Shoffner, Derek Hamner; * all rights reserved; see license.txt for details. */import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class AccessRecorderServlet extends PersistentHttpServlet {
  protected Date dateLoaded;
  
  public void init (ServletConfig config) throws ServletException {
    super.init (config, 5 * 60 * 1000);
    dateLoaded = new Date ();
  }

  protected Serializable createState () {
    return new AccessRecord ();
  }

  protected void doGet (HttpServletRequest request, HttpServletResponse response) throws IOException {
    ((AccessRecord) state).recordAccess ();
    stateChanged ();
    response.setContentType ("text/html");
    PrintWriter writer = response.getWriter ();
    writer.println ("<html><body>");
    writer.println ("servlet last loaded on: " + dateLoaded + "<br>");
    writer.println (state + "<br>");
    writer.println ("</body></html>");
    writer.close ();
  }
}

accessrecorderservlet.java - 源码说明

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