帝王谷资源网 Design By www.wdxyy.com

Below is a table of Response Properties along with examples and explanations.

Response Properties Buffer Response.Buffer = true
Allows for the buffering of output CacheControl Response.CacheControl="Public"
Sets Cache to "Public" or "Private" CharSet Response.CharSet="windows-1252"
Sets the ISO character set ContentType Response.ContentType="text/HTML"
Specifies the output mime type (text/html, text/plain, GIF, JPG) Expires Response.Expires=60
Sets page expiration in minutes ExpiresAbsolute Response.ExpiresAbsolute=#January 31, 2003 13:00:00#
Sets time certain for page to expire IsClientConnected if (Response.IsClientConnected==true) { }
Determines if client is still connected PICS ((See Explanation))
Platform for Internet Content Selection Status Response.Status="401 Unauthorized"
Sets Page Status

You are not required to set, alter, or utilize a single Response Property if you don't want to. Having said that, they can be handy once in while. I've demonstrated all but two Properties in the script below.

By the way, set your properties BEFORE you begin output to the client.

Get Started:

Below is the ASP script for Lesson 07.

<%@LANGUAGE="JavaScript"%>
<%
Response.Buffer=true
Response.CacheControl="Private" 
Response.CharSet="windows-1252"
Response.ContentType="text/HTML"
Response.Expires=-1
Response.Status="200 OK"
%>
<HTML>
<BODY>
<%
if (Response.IsClientConnected==true)
	{
	Response.Write("The client is connected.<BR>")
	}
else
	{
	Response.End()
	}
%>
<TABLE BORDER="2">
<TR>
<%
for (x=1;x<=200;x++)
	{
	Response.Write("<TD>" + x + " </TD>\r")
	if (x%10==0)
		{
		Response.Clear()
		}
	if (x%4==0)
		{
		Response.Write("</TR></TABLE>\r")
		Response.Write("<TABLE BORDER=\"2\">")
		Response.Write("\r<TR>")
		Response.Flush()
		}
	}
%>
</TR></TABLE>
</BODY>
</HTML>

Click Here to run the script in a new window. After you click onto the link, really study the numbers. See if you notice anything weird about the page, like missing numbers.

Response.Buffer:

Let's take the Properties in order of appearance in our script. Response.Buffer allows us to control the output via Response.Flush() and Response.Clear(). If you haven't already, click onto the link to run the script. You'll get a strange output with some of the numbers missing. The missing numbers are thanks to Response.Clear(). You might notice that Response.Flush() slows down the server TREMENDOUSLY. Don't use this method without a reason.

Response.CacheControl:

CacheControl gives you the power to authorize proxy servers to keep your page in cache. (That would be the "Public" setting.) Likewise, it allows you to disallow proxy servers from caching your page. (That would be the "Private" setting). The default is "Private."

Response.CharSet:

CharSet allows you to specify the character set, for example: "ISO 8859-1".

Response.ContentType:

ContentType allows you to indicate the mime type of the output. For example there is text/plain and text/html. There is also GIF and JPEG.

Response.Expires:

Expires allows you set an expiration time for the page. By setting the Expires property to -1, you are saying the page expired one minute before it was delivered. The browser will (hopefully) not store it in cache, but rather make a separate request to the server before re-displaying the page.

Response.Status:

If tomorrow Congress were to pass a law forbidding the use of Response.Status, I think life would go on. If it makes you happy, use it.

Response.IsClientConnected:

IsClientConnected does exactly what it says. It returns a Boolean value that you can use in an "if" statement.

Response.PICS:

PICS stands for Platform for Internet Content Selection. It allows pages to be rated for the presence of violence, sexuality, language and nudity. There are services on the internet to rate your site. I've never used one. I found a sample PICS string on the internet and I converted to JavaScript.

Response.PICS("(PICS-1.1 <http://www.rsac.org/ratingv01.html> labels on \"1997.01.05T08:15-0500\" until \"1999.12.31T23:59-0000\" ratings (v 0 s 0 l 0 n 0))")

It's a long string and your browser may have wrapped the text down to a second line. If that's the case, then you have to pretend that the entire PICS string is on one line.

Response.ExpiresAbsolute:

I did not demonstrate ExpiresAbsolute in the script because I already used Response.Expires. ExpiresAbsolute does exactly the same thing as Expires, except it uses a date and time certain. (I couldn't see using both in the same script.) The only thing I would point out is the pound signs (#) at the beginning and and of the date.

标签:
javascript,asp教程第七课--response属性

帝王谷资源网 Design By www.wdxyy.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
帝王谷资源网 Design By www.wdxyy.com

稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?