I had setted my jboss too work with mysql, but I have a problem,
for Using unicode in connection I think I should have a mysql-ds.xml like this (other configurations for mySQL in done) :


<local-tx-datasource>
<jndi-name>MySQLDS</jndi-name>
<connection-url>jdbc:mysql://localhost/Librarian2?characterEncoding=utf8&useUnicode=true</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>user</user-name>
password
<security-domain>MySqlDbRealm</security-domain>
</local-tx-datasource>


the problem is "&" in <connection-url>...characterEncoding=utf8 & useUnicode=true
whene the & in there, jboss can't parse it and whene useUnicode=true or characterEncoding=utf8 is not there, The database connection is not unicode,
Please help me;
Thanks, Reza.