巧妙修改文件时间的小编程

孤单的思念 · 发表于 2010-10-27 07:16:10

巧妙修改文件时间的小编程：
　　1.文件的时间属性查看，包括修改时间与创建时间;
　　2.文件修改时间的修改，精确到秒;
　　代码如下：
(Apache Tomcat/6.0.18下运行通过！)

<%@ page import="java.io.*" %>
<%@ page import="java.util.*, java.text.*" %>
<%@ page language="java" import="java.util.Enumeration" contentType="text/html; charset=GB2312"%>
<html>
<head>
<title>JSP timeshell by oldjun</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head>
<body>
<H1>JSP timeshell by oldjun</H1>
<%!
public static String getFileCreateDate(File _file) {
      File file = _file;
      try {
         Process ls_proc = Runtime.getRuntime().exec("cmd.exe /c dir \"" + file.getAbsolutePath() + "\" /tc");
         BufferedReader br = new BufferedReader(new InputStreamReader(ls_proc.getInputStream()));
         for (int i = 0; i < 5; i++) {
            br.readLine();
         }
         String stuff = br.readLine();
         StringTokenizer st = new StringTokenizer(stuff);
         String dateC = st.nextToken();
         String time = st.nextToken();
         String datetime = dateC.concat(" "+time);
         br.close();
         return datetime;
      } catch (Exception e) {
         return null;
      }
}
String folderReplace(String folder){
return folder.replace('\\','/');
}
%>
<%
String action = null;
if (request.getParameter("action") == null)
      action = "main";
else
      action = (String)request.getParameter("action");
if (action.equals("main")) {
%>
<form name= form1 method="post" action="?action=getinfo">
filepath:<input name="file" type="text" size="100" /><br>(for instance C:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/time.jsp)<br>
<input type="submit" name="Button" value="getinfo"/>
</form>
<%
}else if (action.equals("getinfo")) {
String filepath = folderReplace(request.getParameter("file"));
File file = new File(filepath);
if(!file.exists()){
      out.println("<script lanugage=\"javascript\">alert(\"file:"+filepath+" not find!\");history.back();</script>");
}
%>
filepath:<br>
<%=filepath%><br><br>
lastModifiedtime:<br>
<%=new Date(file.lastModified())%><br><br>
Createtime:<br>
<%
String Createtime=getFileCreateDate(file);
out.println(Createtime);
%><br><br>
now:<br>
<%
Date myDate = new Date();
out.println(myDate.toLocaleString());
%>
<form name= form2 method="post" action="?action=change">
<input name="year" type="text" size="10"/>year
<input name="month" type="text" size="10"/>month
<input name="day" type="text" size="10"/>day
<input name="hour" type="text" size="10"/>hour
<input name="min" type="text" size="10"/>minute
<input name="sec" type="text" size="10"/>second
<input name="file" type="hidden" value="<%=filepath%>" /><br>
<input type="submit" name="Button" value="change"/>
</form>
<%
}else if (action.equals("change")) {
String url="?action=main";
String filepath = folderReplace(request.getParameter("file"));
String year = request.getParameter("year");
String month = request.getParameter("month");
String day = request.getParameter("day");
String hour = request.getParameter("hour");
String min = request.getParameter("min");
String sec = request.getParameter("sec");
File file = new File(filepath);
Calendar calendar=Calendar.getInstance();
calendar.set(Integer.parseInt(year),Integer.parseInt(month),Integer.parseInt(day),Integer.parseInt(hour),Integer.parseInt(min),Integer.parseInt(sec));
if(file.setLastModified(calendar.getTimeInMillis()))
out.println("<script lanugage=\"javascript\">alert(\"file date change success!\");location.href=\""+url+"\";</script>");
else
out.println("<script lanugage=\"javascript\">alert(\"time error!\");history.back();</script>");
}
%>
</body>
</html>

氖譁 · 发表于 2010-10-30 10:58:33

没什么用途啊

winxpsp5 · 发表于 2010-10-30 11:33:25

有点复杂1！

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