注册验证之防止用户名输入空格,asp批量替换特殊字符函数代码

check.asp
代码如下:
<%
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Function ReplaceText(fString,patrn,replStr)
    Set regEx = New RegExp     '' 建立正则表达式。
        regEx.Pattern = patrn '' 设置模式。
        regEx.IgnoreCase = True '' 设置是否区分大小写。
        regEx.Global = True '' 设置全局可用性。
        ReplaceText = regEx.Replace(""&fString&"",""&replStr&"") '' 作替换。
    Set regEx=nothing
End Function
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Function HTMLEncode(fString)
    fString=Trim(fString)
    fString=Replace(fString,CHR(9),"")
    fString=Replace(fString,CHR(13),"")
    fString=Replace(fString,CHR(22),"")
    fString=Replace(fString,CHR(38),"&")    ''“&”
    fString=Replace(fString,CHR(32)," ")    ''“ ”
    fString=Replace(fString,CHR(34),""")    ''“"”
    fString=Replace(fString,CHR(37),"%")    ''“%”
    fString=Replace(fString,CHR(39),"'")    ''“''”
    fString=Replace(fString,CHR(42),"*")    ''“*”
    fString=Replace(fString,CHR(43),"+")    ''“+”
    fString=Replace(fString,CHR(44),",")    ''“,”
    fString=Replace(fString,CHR(45)&CHR(45),"--")    ''“--”
    fString=Replace(fString,CHR(92),"\")    ''“\”
    ''fString=Replace(fString,CHR(95),"_")    ''“_”
    fString=Replace(fString,CHR(40),"(")    ''“(”
    fString=Replace(fString,CHR(41),")")    ''“)”
    fString=Replace(fString,CHR(60),"<")    ''“<”
    fString=Replace(fString,CHR(62),">")    ''“>”
    fString=Replace(fString,CHR(123),"{")    ''“{”
    fString=Replace(fString,CHR(125),"}")    ''“}”
    fString=Replace(fString,CHR(59),";")    ''“;”
    fString=Replace(fString,CHR(10),"<br>")
    fString=ReplaceText(fString,"([&#])([a-z0-9]*);","$1$2;")
    fString=ReplaceText(fString,"(fuck|shit)",string(len("&$1&"),"*"))
    if IsSqlDataBase=0 then ''过滤片假名(日文字符)[\u30A0-\u30FF] by yuzi
        fString=escape(fString)
        fString=ReplaceText(fString,"%u30([A-F][0-F])","0$1;")
        fString=unescape(fString)
    end if
    HTMLEncode=fString
End Function
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Function RequestInt(fString)
    RequestInt=Request(fString)
    if IsNumeric(RequestInt) then
        RequestInt=int(RequestInt)
    else
        RequestInt=0
    end if
End Function
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UserName=HTMLEncode(unescape(Request.QueryString("UserName")))
UserNameLength=RequestInt("UserNameLength")
If len(UserName)<>UserNameLength Then
    response.write "用户名非法！"
Else
    response.write "用户名合法！"
End If
%>

HTMLEncode 函数是将用户名转换成合法字符的必须步骤。
RequestInt 函数主要根据输入有效字符的个数判断用户名是否包含空格。
调用方法：check.asp?UserName=用户名&UserNameLength=用户名长度
check.asp一般用于Ajax判断