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3w....學習.教學 > ASP > servervariables » query-string

3w learning

servervariables >
query-string

Title:

ServerVariables("Query_String")

網址後面的參數(不含問號)

Description:

QueryString= Request.ServerVariables("Query_String")

if the URL has a "?" question mark included
the the Len(QueryString)>0

Tips: security to prevent some one to hake 
your submit form Ezer suggest add a check point 
to check the length of :;

Len(QueryString)

取出"?"之後的字串

所以同理也可測其自串的長度

Example Code:

http://3w.ezer.com/search/index.asp?dir1=&page=2&q=server

<%

Query_String="http://3w.ezer.com/search/index.asp?
dir1=&page=2&q=server"

QueryString= Request.ServerVariables("Query_String")

response.write QueryString

%>

-----------------Tip------------

you may often see URL request like this:

http://www.----.com/?aKeyword

here (aKeyword) is a quary

<%

quaryX= Request.ServerVariables("Query_String")

%>

then you can easy to use the request

技巧:防護你個人的(Submit form)表單
簡單方式以避免駭客玩弄你重要的query
減少非法呼叫與外侵襲擊

道理雖是簡單, 但仍有很多企業網站輕忽

技巧:可建立直接讀取"?"之後的關鍵字成為
query呼叫送出

Example Result:

dir1=&page=2&q=server

---------- attention :: -----------

the ? (question mark) shall not be included

tips: you can see the Len(QueryString)>0

you may avoid hacker to play around your quary
by writing this ::
<%

if Len(QueryString)>0 then
response.write "stop hacking me"
response.end
end if

%>

However you shall know about how to use
(get) and (post) submit form before use it.

注意不含問號

...

[ 9/7/2010 ]

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servervariables > query-string

servervariables >
query-string