<datasources>
  <xa-datasource>
    <jndi-name>livrariaDS</jndi-name>
    <track-connection-by-tx>true</track-connection-by-tx>

    <xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
    <xa-datasource-property name="URL"> jdbc:mysql://localhost:3306/fj31</xa-datasource-property>
    <xa-datasource-property name="User">root</xa-datasource-property>
    <xa-datasource-property name="Password"></xa-datasource-property>

    <min-pool-size>0</min-pool-size>
    <max-pool-size>10</max-pool-size>
    <idle-timeout-minutes>10</idle-timeout-minutes>

 </xa-datasource>
</datasources>