输入文件路径 ${EAP_HOME}/modules/system/layers/base 并创建目录 com/mysql/driver8/main .
将驱动程序（mysql-connector-java-8.0.11.jar）库jar复制到main文件夹中，并创建一个module.xml文件，如下面的示例所示

<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.1" name="com.mysql.driver8">
  <resources>
    <resource-root path="mysql-connector-java-8.0.11.jar"/>
  </resources>
  <dependencies>
    <module name="javax.api"/>
    <module name="javax.transaction.api"/>
  </dependencies>
</module>

然后转到/wildfly-12.0.0.final/standalone/standalone.xml copy并将其粘贴到

<datasource jndi-name="java:jboss/MySqlDS8" pool-name="MySqlDS8">
                <connection-url>jdbc:mysql://localhost:3306/mysql?useSSL=false&amp;useUnicode=yes&amp;characterEncoding=UTF-8&amp;useJDBCCompliantTimezoneShift=true&amp;useLegacyDatetimeCode=false&amp;serverTimezone=UTC</connection-url>
                <driver>mysql8</driver>
                <security>
                    <user-name>root</user-name>
                    <password>12341234</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>

然后转到部分，复制并粘贴这个。

<driver name="mysql8" module="com.mysql.driver8">
       <xa-datasource-class>com.mysql.cj.jdbc.MysqlDataSource</xa-datasource-class>
   </driver>