<subsystem xmlns="urn:jboss:domain:datasources:5.0">
            <datasources>
                <datasource jta="false" jndi-name="java:jboss/datasources/myDS" pool-name="myDS" enabled="true" use-java-context="true">
                    <connection-url>jdbc:mysql://localhost:3306/xd_wildfly</connection-url>
                    <driver>com.mysql</driver>
                    <pool>
                        <min-pool-size>50</min-pool-size>
                        <max-pool-size>250</max-pool-size>
                        <prefill>true</prefill>
                        <use-strict-min>true</use-strict-min>
                        <flush-strategy>EntirePool</flush-strategy>
                    </pool>
                    <security>
                        <user-name>root</user-name>
                        <password>root</password>
                    </security>
                    <validation>
                        <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/>
                        <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLExceptionSorter"/>
                    </validation>
                </datasource>
                <xa-datasource jndi-name="java:jboss/datasources/idDSXA" pool-name="idDSXA" enabled="true" use-java-context="true" use-ccm="true">
                    <xa-datasource-property name="URL">
                        jdbc:mysql://localhost:3306/xd_wildfly
                    </xa-datasource-property>
                    <xa-datasource-property name="User">root</xa-datasource-property>
                    <xa-datasource-property name="Password">root</xa-datasource-property>
                    <driver>mysql-xa</driver>
                    <xa-pool>
                        <min-pool-size>50</min-pool-size>
                        <max-pool-size>250</max-pool-size>
                        <prefill>true</prefill>
                        <flush-strategy>EntirePool</flush-strategy>
                    </xa-pool>
                    <validation>
                        <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/>
                        <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLExceptionSorter"/>
                    </validation>
                </xa-datasource>
                <drivers>
                    <driver name="com.mysql" module="com.mysql"/>
                    <driver name="mysql-xa" module="com.mysql">
                        <xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
                        <!-- <xa-datasource-class>com.mysql.cj.jdbc.MysqlXADataSource</xa-datasource-class> -->
                    </driver>
                </drivers>
            </datasources>
        </subsystem>