Big5--GB2312???

[kongtao]

Hello ,everyone.   I'm confused by a problem.I wanna convert the Big5 character into GB2312 character.But I can't see the expected characters throught the IE explorer. The original characters is  Big5.I programme to convert it into GB2312,But unexpected occurs. Following is the source code: ****************java code******************  while((str_big=readfile.readLine())!=null){         b_str_big=str_big.getBytes("iso-8859-1");         str_gb=new String(b_str_big,"gb2312");         writefile.write(str_gb);         writefile.newLine();       }       readfile.close();       writefile.close(); ****************java code****************** Any helps are appreciated.THX in advanced.