Hi All,

How i can encode Thai language string using BASE64 encoding in java.

I am using following code

import java.util.Locale;

/*
* Created on 2006-8-28
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/


/**
* @author I030872
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
public class BASE64 {
// Mapping table from 6-bit nibbles to Base64 characters.
char[] map1 = new char[64];
byte[] map2 = new byte[128];
public static void main(String[] args)
{
BASE64 temp= new BASE64();

String aa2 = "ทดสอบที่อยู่ทดสอบทดสอบทดสอบทดสอบทดสอบที่อยู่ทดสอบทดสอบทดสอบท";
String temp1 = temp.encode(aa2);
System.out.println(temp1);




}
BASE64()
{

int i=0;
for (char c='A'; c<='Z'; c++)
map1[i++] = c;
for (char c='a'; c<='z'; c++)
map1[i++] = c;
for (char c='0'; c<='9'; c++)
map1[i++] = c;
map1[i++] = '+'; map1[i++] = '/';


for (int j=0; j<map2.length; j++)
map2[j] = -1;
for (int j=0; i<64; j++)
map2[map1[j]] = (byte)i;
}

/**
* Encodes a string into Base64 format.
* No blanks or line breaks are inserted.
* @param s a String to be encoded.
* @return A String with the Base64 encoded data.
*/
public String encode (String s) {
String aa= null;
try
{
aa = new String(this.encode(s.getBytes("UTF-8")));
// aa.
// "\\u" + Integer.toHexString('÷' | 0x10000).substring(1)
aa = new String(this.encode(s.getBytes()));
}
catch (Exception e)
{
e.printStackTrace();
}
return aa;
}


/**
* Encodes a byte array into Base64 format.
* No blanks or line breaks are inserted.
* @param in an array containing the data bytes to be encoded.
* @return A character array with the Base64 encoded data.
*/
public char[] encode (byte[] in) {
int iLen = in.length;
int oDataLen = (iLen*4+2)/3; // output length without padding
int oLen = ((iLen+2)/3)*4; // output length including padding
char[] out = new char[oLen];
int ip = 0;
int op = 0;
while (ip < iLen) {
int i0 = in[ip++] & 0xff;
int i1 = ip < iLen ? in[ip++] & 0xff : 0;
int i2 = ip < iLen ? in[ip++] & 0xff : 0;
int o0 = i0 >>> 2;
int o1 = ((i0 & 3) << 4) | (i1 >>> 4);
int o2 = ((i1 & 0xf) << 2) | (i2 >>> 6);
int o3 = i2 & 0x3F;
out[op++] = map1[o0];
out[op++] = map1[o1];
out[op] = op < oDataLen ? map1[o2] : '='; op++;
out[op] = op < oDataLen ? map1[o3] : '='; op++; }
return out; }

/**
* Decodes a Base64 string.
* @param s a Base64 String to be decoded.
* @return A String containing the decoded data.
* @throws IllegalArgumentException if the input is not valid Base64 encoded data.
*/
public String decode (String s) {
return new String(this.decode(s.toCharArray())); }

/**
* Decodes Base64 data.
* No blanks or line breaks are allowed within the Base64 encoded data.
* @param in a character array containing the Base64 encoded data.
* @return An array containing the decoded data bytes.
* @throws IllegalArgumentException if the input is not valid Base64 encoded data.
*/
public byte[] decode (char[] in) {
int iLen = in.length;
if (iLen%4 != 0) throw new IllegalArgumentException ("Length of Base64 encoded input string is not a multiple of 4.");
while (iLen > 0 && in[iLen-1] == '=') iLen--;
int oLen = (iLen*3) / 4;
byte[] out = new byte[oLen];
int ip = 0;
int op = 0;
while (ip < iLen) {
int i0 = in[ip++];
int i1 = in[ip++];
int i2 = ip < iLen ? in[ip++] : 'A';
int i3 = ip < iLen ? in[ip++] : 'A';
if (i0 > 127 || i1 > 127 || i2 > 127 || i3 > 127)
throw new IllegalArgumentException ("Illegal character in Base64 encoded data.");
int b0 = map2[i0];
int b1 = map2[i1];
int b2 = map2[i2];
int b3 = map2[i3];
if (b0 < 0 || b1 < 0 || b2 < 0 || b3 < 0)
throw new IllegalArgumentException ("Illegal character in Base64 encoded data.");
int o0 = ( b0 <<2) | (b1>>>4);
int o1 = ((b1 & 0xf)<<4) | (b2>>>2);
int o2 = ((b2 & 3)<<6) | b3;
out[op++] = (byte)o0;
if (op<oLen) out[op++] = (byte)o1;
if (op<oLen) out[op++] = (byte)o2; }
return out; }

}




This code is always returnig folowing output even if i chnage string value also
Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/Pz8/

But this code is working perfectly for english string

With Regards
JOby Thomas