extjs ajaxUTF-8编码转换

extjs ajaxUTF-8编码转换
extjs默认使用UTF-8的编码,在服务器端我们经常使用GB2312之类编码.
在网上找了很久,经过测试修改.
实现了在服务器端编码转变.

Function UTF2GB(UTFStr)
Dim Dig,GBStr
For Dig=1 to Len(UTFStr)
If mid(UTFStr,Dig,1)="%" Then
If len(UTFStr) >= Dig+8 Then
GBStr=GBStr & ConvChinese(mid(UTFStr,Dig,9))
Dig=Dig+8
Else
GBStr=GBStr & Mid(UTFStr,Dig,1)
End If
Else
GBStr=GBStr & Mid(UTFStr,Dig,1)
End If
Next
UTF2GB=GBStr
End Function

Function URLEncoding(vstrIn)
Dim strReturn,i,innerCode,ThisChr,Hight8,Low8
strReturn = ""
For i = 1 To Len(vstrIn)
ThisChr = Mid(vStrIn,i,1)
If Abs(Asc(ThisChr)) < &HFF Then
strReturn = strReturn & ThisChr
Else
innerCode = Asc(ThisChr)
If innerCode < 0 Then
innerCode = innerCode + &H10000
End If
Hight8 = (innerCode And &HFF00)\ &HFF
Low8 = innerCode And &HFF
strReturn = strReturn & "%" & Hex(Hight8) & "%" & Hex(Low8)
End If
Next
URLEncoding = strReturn
End Function

Function ConvChinese(x)
Dim A,i,j,DigS,Unicode
A = Split(Mid(x, 2), "%")
i = 0
j = 0

For i = 0 To UBound(A)
A(i) = c16to2(A(i))
Next

For i = 0 To UBound(A) - 1
DigS = InStr(A(i), "0")
Unicode = ""
For j = 1 To DigS - 1
If j = 1 Then
A(i) = Right(A(i), Len(A(i)) - DigS)
Unicode = Unicode & A(i)
Else
i = i + 1
A(i) = Right(A(i), Len(A(i)) - 2)
Unicode = Unicode & A(i)
End If
Next

If Len(c2to16(Unicode)) = 4 Then
ConvChinese = ConvChinese & ChrW(Int("&H" & c2to16(Unicode)))
Else
ConvChinese = ConvChinese & Chr(Int("&H" & c2to16(Unicode)))
End If
Next
End Function

Function c2to16(x)
Dim i
i = 1
For i = 1 To Len(x) Step 4
c2to16 = c2to16 & Hex(c2to10(Mid(x, i, 4)))
Next
End Function

Function c2to10(x)
Dim i
c2to10 = 0
If x = "0" Then Exit Function
i = 0
For i = 0 To Len(x) - 1
If Mid(x, Len(x) - i, 1) = "1" Then c2to10 = c2to10 + 2 ^ (i)
Next
End Function

Function c16to2(x)
Dim i,tempstr
i = 0
For i = 1 To Len(Trim(x))
tempstr = c10to2(CInt(Int("&h" & Mid(x, i, 1))))
Do While Len(tempstr) < 4
tempstr = "0" & tempstr
Loop
c16to2 = c16to2 & tempstr
Next
End Function

Function c10to2(x)
Dim mysign,DigS,tempnum,i
mysign = Sgn(x)
x = Abs(x)
DigS = 1
Do
If x < 2 ^ DigS Then
Exit Do
Else
DigS = DigS + 1
End If
Loop
tempnum = x

i = 0
For i = DigS To 1 Step -1
If tempnum >= 2 ^ (i - 1) Then
tempnum = tempnum - 2 ^ (i - 1)
c10to2 = c10to2 & "1"
Else
c10to2 = c10to2 & "0"
End If
Next
If mysign = -1 Then c10to2 = "-" & c10to2
End Function

具体使用方法是:
Name=UTF2GB(URLEncoding(ReplaceBadChar(Trim(Request.QueryString("name")))))
==============================================
一下为编码的测试代码.
asp程序:

<%

     Response.Addheader "Content-Type","text/html; charset=gb2312f"

	Response.Write Server.URLEncode("测试用户")
	Response.Write "<p>"


     Dim s
     s="%E6%B5%8B%E8%AF%95%E7%94%A8%E6%88%B7"
     Dim d
     d="测试用户"
     'Response.Write c2Toutf(d)
     'Response.Write ConvChinese(s)

Function c2Toutf(c2Str)
Dim i, temp
    For i = 1 To LenB(c2Str)
        temp = temp & CStr(MidB(c2Str, i, 1)) & "-"
    Next
c2Toutf = temp
End Function

Function ConvChinese(x)
Dim A, i, j, DigS, Unicode
A = Split(Mid(x, 2), "%")
i = 0
j = 0

For i = 0 To UBound(A)
A(i) = c16to2(A(i))
Next

For i = 0 To UBound(A) - 1
DigS = InStr(A(i), "0")
Unicode = ""
For j = 1 To DigS - 1
If j = 1 Then
A(i) = Right(A(i), Len(A(i)) - DigS)
Unicode = Unicode & A(i)
Else
i = i + 1
A(i) = Right(A(i), Len(A(i)) - 2)
Unicode = Unicode & A(i)
End If
Next

If Len(c2to16(Unicode)) = 4 Then
ConvChinese = ConvChinese & ChrW(Int("&H" & c2to16(Unicode)))
Else
ConvChinese = ConvChinese & Chr(Int("&H" & c2to16(Unicode)))
End If
Next
End Function

Function c2to16(x)
Dim i
i = 1
For i = 1 To Len(x) Step 4
c2to16 = c2to16 & Hex(c2to10(Mid(x, i, 4)))
Next
End Function

Function c2to10(x)
Dim i
c2to10 = 0
If x = "0" Then Exit Function
i = 0
For i = 0 To Len(x) - 1
If Mid(x, Len(x) - i, 1) = "1" Then c2to10 = c2to10 + 2 ^ (i)
Next
End Function

Function c16to2(x)
Dim i, tempstr
i = 0
For i = 1 To Len(Trim(x))
tempstr = c10to2(CInt(Int("&h" & Mid(x, i, 1))))
Do While Len(tempstr) < 4
tempstr = "0" & tempstr
Loop
c16to2 = c16to2 & tempstr
Next
End Function

Function c10to2(x)
Dim i, DigS, mysign, tempnum
mysign = Sgn(x)
x = Abs(x)
DigS = 1
Do
If x < 2 ^ DigS Then
Exit Do
Else
DigS = DigS + 1
End If
Loop
tempnum = x

i = 0
For i = DigS To 1 Step -1
If tempnum >= 2 ^ (i - 1) Then
tempnum = tempnum - 2 ^ (i - 1)

c10to2 = c10to2 & "1"
Else
c10to2 = c10to2 & "0"
End If
Next
If mysign = -1 Then c10to2 = "-" & c10to2
End Function
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