使用EJB使用jboss7.0中配置数据源

使用EJB时需要配置数据源，光在代码里面添加配置是不够的，还需要在jboss中配置
首先在jboss-as-web-7.0.2.Final\standalone\configuration目录下standalone.xml中<datasources>标签中添加你的数据源配置：
这里drivername是mysql

<datasource jndi-name="java:jboss/datasources/localTrans/FirstTest" pool-name="localTrans_FirstTest" enabled="true" jta="true" use-java-context="true" use-ccm="true">                    <connection-url>                        jdbc:mysql://127.0.0.1:3306/jsftest                    </connection-url>                    <connection-property name="zeroDateTimeBehavior">                        round                    </connection-property>                    <connection-property name="connectTimeout">                        180000                    </connection-property>                    <connection-property name="socketTimeout">                        180000                    </connection-property>                    <connection-property name="characterEncoding">                        UTF-8                    </connection-property>                    <connection-property name="autoReconnectForPools">                        true                    </connection-property>                    <driver>                        mysql                    </driver>                    <pool>                        <min-pool-size>                            0                        </min-pool-size>                        <max-pool-size>                            50                        </max-pool-size>                        <prefill>                            false                        </prefill>                        <use-strict-min>                            false                        </use-strict-min>                        <flush-strategy>                            EntirePool                        </flush-strategy>                    </pool>                    <security>                        <user-name>                            root                        </user-name>                        <password>                            root                        </password>                    </security>                    <validation>                        <check-valid-connection-sql>                            select 1                        </check-valid-connection-sql>                        <validate-on-match>                            false                        </validate-on-match>                        <background-validation>                            true                        </background-validation>                        <background-validation-millis>                            1800000                        </background-validation-millis>                        <use-fast-fail>                            false                        </use-fast-fail>                    </validation>                    <timeout>                        <idle-timeout-minutes>                            5                        </idle-timeout-minutes>                        <query-timeout>                            120                        </query-timeout>                    </timeout>                    <statement>                        <track-statements>                            TRUE                        </track-statements>                        <prepared-statement-cache-size>                            100                        </prepared-statement-cache-size>                        <share-prepared-statements/>                    </statement>                </datasource>

添加<drivers>下添加driver:

<driver name="mysql" module="com.mysql"/>

然后在modules\com文件夹下建立mysql\main文件夹
main里面添加驱动jar包以及module.xml文件：
path为jar包名，name为上面的module值
这一段可以把modules\com\h2database\h2\main中的module.xml文件复制过来就行修改

<?xml version="1.0" encoding="UTF-8"?><module xmlns="urn:jboss:module:1.0" name="com.mysql">  <resources>    <resource-root path="mysql-connector-java-5.1.21-bin.jar"/>        <!-- Insert resources here -->  </resources>  <dependencies>    <module name="javax.api"/>    <module name="javax.transaction.api"/>  </dependencies></module>