how to set the characterset in servlet

[mohab]

dear all
i had deployed a project on JBOSS Application Server, the project works by sending some parameters in the url
ex:http:\\machinenameortno\application name\mainservlet?parameter1=test&parameter2=test
it worked ok but when send paramteres in arabic language or values of parameter are arabic, it stores it in database, but when retrieving it i found it stored like that"???? ???"
N.B: the problem isnot in the characterset of DB, which is SQL server by the way
please help

Java Developer(J2EE)

 

[mohab]

sorry i forgot to tell u that in the mainservlet
i made it like that
response.setContentType("text/html;charset=windows-1256");
request.setCharacterEncoding("windows-1256");

Java Developer(J2EE)