当前位置: 首页 > 图文教程 > 网络编程 > ASP > javascript asp教程 日期相关

ASP
asp #include命令
推荐下天枫常用ASP函数封装，推荐大家使用
asp最简单最实用的计数器
用asp实现的iframe批量替换工具
ASPWebPack 代码 提供下载
asp分页生成html的程序脚本代码
比较不错的asp单表单字段多条件查询
asp下用replace非正则实现代码运行功能的代码
UpdatePanel触发javascript脚本的方法附代码
生成EAN13标准的条形码的ASP代码实例
asp空间奸商查询系统
ASPWebPack(整站文件备份系统) v1.0.2 黑客也用
ASP+FSO可视化目录编历（可增、删、改）下载
提高ASP效率的五大技巧
ASP生成随机字符串(数字+大小写字母)的代码
ASP下存储过程编写入门全接触
利用 cache 做对比静态页的网页技术
ASP生成静态文件编码为UTF-8格式的HTML文件
ASP下的两个防止SQL注入式攻击的Function
asp下的风讯用的SQL通用防注入模块提供了

No. « 67 68 69 70 »

技术文章搜索

关键字

ASP 中的 javascript asp教程 日期相关

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-09-13   浏览: 102 ::
收藏到网摘: n/a

JavaScript is loosely typed. Database files are not. If you put text into a Boolean database column or a Boolean value into a date/time column, then you will get an error.

For the most part this is not a problem, except for date/time. It does not correspond to the JavaScript Date Object. So, we have to tear Date apart and rebuild it from scratch. If we don't, then we get a type mismatch error.

Take a look at the snippet below. (It's not part of our lesson, but I want you to look at it anyway.) Please notice DateTime. 

objConn.Open(strConnect)
sql = "INSERT INTO FoloVisit (SessionID,VisitTime) "
sql+= "Values ('" + Session.SessionID + "',#" + DateTime + "#);"
objConn.Execute(sql)

DateTime has to be in a very particular format: #mm/dd/yyyy hh:mm:ss [a|p]m# As you well know new Date() doesn't even come close to this format. We will fix that in the script below.

Get Started:

Below is the script for Lesson 20. 

<%@LANGUAGE="JavaScript"%>
<SCRIPT LANGUAGE="VBScript" RUNAT="Server">
Dim VBTime,VBDate,VBDateTime
VBTime = Time & " "
VBDate = Date & " "
VBDateTime = Date & " " & Time
</SCRIPT>
<%
function whatTimeIsIt()	{	var m=new Date()	var minute=m.getMinutes()	var second=m.getSeconds()	var ampm=false	if (minute >=0 && minute < 10)	{ minute=("0" + minute)	}	if (second >= 0 && second < 10 )	{ second=("0" + second) }	var hours=m.getHours()	if (hours > 12)	{ ampm=true	hours=hours-12 }	if (hours==12)	{ ampm=true }	if (hours == 0)	{ hours=hours+12	ampm=false }	if (ampm)	{ ampm=" PM" }	else	{ ampm=" AM" }	var myTime=hours + ":" + minute + ":" + second + ampm	return myTime;	}
var DateTime = new Date();
var Month = (DateTime.getMonth() + 1) + "/";
var Day = DateTime.getDate() + "/";
var Year = DateTime.getFullYear();
var JustTheDate = Month + Day + Year;
var JustTheTime = whatTimeIsIt();
var DateTime = Month + Day + Year + " " + whatTimeIsIt();
Response.Write("<HTML>\r")
Response.Write("<STRONG>JavaScript Time</STRONG><BR>\r")
Response.Write("The date in proper database format is: " + JustTheDate + "<BR>\r")
Response.Write("The time in proper database format is: " + JustTheTime + "<BR>\r")
Response.Write("The date & time together are: " + DateTime + "<BR>\r")
Response.Write("<HR>\r")
Response.Write("<STRONG>VBScript Time</STRONG><BR>\r")
Response.Write("The date in proper database format is: " + VBDate + "<BR>\r")
Response.Write("The time in proper database format is: " + VBTime + "<BR>\r")
Response.Write("The date & time together are: " + VBDateTime + "<BR>\r")
Response.Write("</HTML>")
%>

Click Here to run the script in a new window.

Living on VBScript Time:

The other way to solve the problem is to use the VBScript date and time Objects. What can I say? If you can't beat 'em, steal from 'em!

Time For a Tangent:

If all you want to do is store new Date() exactly as-is in your database then do so in a text or memo column. The disadvantage of using this tactic is that SQL cannot sort items correctly by date and time. Instead, they'll be sorted by alphabetical order.

Final Thoughts:

That's the end of the lesson plan. I have received messages from all over the world. Thank you for your kind words. If you have questions or comments you can click onto the link for the home page and then there's a link to contact me.