1. Preface
This is based on some online materials re-compiled, mainly as a small accumulation of their own use, the original purpose is to make the page automatically Jump within the specified period of time, requests outside the time range are not processed; JS and JSPCode, Put it here for future reference;
2. Code
2.1 countdown Module
This is automatically refreshed every 1 second, and can be slightly modified for other purposes:
<! -- Countdown --> <meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"> <script language = "JavaScript"> function dclock () {var symbol = "March 31"; var deadline = new date ("03/31/2013 11:25:00"); // Standard Time Format var now = new date (); vaR diff =-480-now. gettimezoneoffset (); // time difference between Beijing time and local time var leave = (deadline. gettime ()-now. gettime () + diff * 60000; // gettime () can get the number of milliseconds after 1970, which is a negative var day = math before January 1, 1970. floor (Leave/(1000*60*60*24); // Number of days var hour = math. floor (leave/(1000*3600)-(day * 24); var minute = math. floor (leave/(1000*60)-(day * 24*60)-(hour * 60); var second = math. floor (leave/(1000)-(day * 24*60*60)-(hour * 60*60)-(minute * 60); If (now. gettime () <deadline. gettime () {liveclock. innerhtml = "now" + symbol + "and" + day + "day" + hour + "Hour" + minute + "Minute" + second + "second"; test. innerhtml = "G Ettime: "+ now. gettime () + "Deadline:" + deadline. gettime (); setTimeout ("dclock ()", 1000); // call itself every 1 second} else if (now. gettime ()> deadline. gettime () {liveclock. innerhtml = "end"; setTimeout ("dclock ()", 1000) ;}</SCRIPT> <! -- Countdown --> <body onload = dclock ()> <Div id = liveclock> </div> <Div id = test> </div> </body>
2.2 JS jump
<! -- JavaScript begin --> <meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"> <script language = "JavaScript"> function dclock () {var deadline = new date ("05/31/2012 20:30:00"); // the start point of the recording var deadline_2 = new date ("05/31/2012 21:30:00"); // the end of the recording var symbol = "May 31 "; vaR now = new date (); If (now. gettime () <deadline. gettime () {} else if (deadline. gettime () <now. gettime () & now. gettime () <deadline_2.gettime () // C language used to write a <B <C. {// alert (now. gettime (); window. location. href = "http: // localhost/XXX/page.html"; setTimeout ("dclock ()", 1000);} else if (now. gettime ()> deadline_2.gettime () {}}</SCRIPT> <JavaScript end -->
2.3 JSP code
Because JS acquisition is the client time, although the server time can be obtained through interaction, it seems redundant. Here we post the JSP code
<% @ Page contenttype = "text/html; charset = UTF-8" Import = "Java. util. *; "%> <% // get the current time in Java. util. date Now = new Java. util. date (); Java. util. date dline = new Java. util. date ("03/01/2012 20:30:00"); Java. util. date dline2 = new Java. util. date ("03/03/2012 21:30:00"); If (now. gettime () <dline. gettime () {} else if (dline. gettime () <now. gettime () & now. gettime () <dline2.gettime () // C language is used to write a <B <C and {response. setstatus (httpservletresponse. SC _moved_permanently); string newlocn = "http: // xxx/page/earthhour/"; response. setheader ("location", newlocn);} else if (now. gettime ()> dline2.gettime () {}%>
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