WebSphere Liberty Profile中的多个数据源

Question

是否可以将多个数据源声明到WebSphere Liberty Profileserver.xml？有什么例子吗？

我尝试这样做，但我只能看到一个。当查找第二个时，我收到一条错误消息，提示找不到jndi名称。

我的server.xml：

    <?xml version="1.0" encoding="UTF-8"?>
<server description="new server">

    <!-- Enable features -->
    <featureManager>
        <feature>webProfile-7.0</feature>
        <feature>jndi-1.0</feature>
        <feature>jdbc-4.0</feature>
    </featureManager>

    <!-- To access this server from a remote client add a host attribute to the following element, e.g. host="*" -->
    <httpEndpoint id="defaultHttpEndpoint"
                  httpPort="9080"
                  httpsPort="9443" />

    <!-- Automatically expand WAR files and EAR files -->
    <applicationManager autoExpand="true"/>

    <!-- Configuration for DSPB  -->

    <jndiEntry jndiName="dspb/configuration/files" value="classpath:properties/dspb.properties,classpath:properties/dspb_db_connector.properties" />

    <dataSource id="ds1" jndiName="DB_DSPB_ACTIVITI" connectionManagerRef="connectionManager1" jdbcDriverRef="MyJDBCDriver">

        <properties.oracle driverType="thin" databaseName="xe"
                     serverName="localhost" portNumber="1521"
                     user="dspb_activiti" password="dspb_activiti"/>
    </dataSource>

    <dataSource id="ds2" jndiName="DB_DSPB" connectionManagerRef="connectionManager2" jdbcDriverRef="MyJDBCDriver">

        <properties.oracle driverType="thin" databaseName="xe"
                     serverName="localhost" portNumber="1521"
                     user="dspb" password="dspb"/>
    </dataSource>   

    <connectionManager id="connectionManager1" maxPoolSize="20" minPoolSize="5" 
                       connectionTimeout="10s" agedTimeout="30m"/>

    <connectionManager id="connectionManager2" maxPoolSize="20" minPoolSize="5" 
                       connectionTimeout="10s" agedTimeout="30m"/>

    <jdbcDriver id="MyJDBCDriver">
        <library>
            <fileset dir="C:/oraclexe/app/oracle/product/11.2.0/server/jdbc/lib/" includes="ojdbc6.jar"/>
        </library>
    </jdbcDriver>

</server>

以及网络中的定义.xml：

  <resource-ref>
    <res-ref-name>DB_DSPB</res-ref-name>
    <res-type>javax.sql.ConnectionPoolDataSource</res-type>
    <res-auth>Container</res-auth>
    <res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>

<resource-ref>
    <res-ref-name>DB_DSPB_ACTIVITI</res-ref-name>
    <res-type>javax.sql.ConnectionPoolDataSource</res-type>
    <res-auth>Container</res-auth>
    <res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>

<resource-ref>
    <res-ref-name>dspb/configuration/files</res-ref-name>
    <res-auth>Container</res-auth>
</resource-ref>

在jconsole看来，我只能看到http://i.stack.imgur.com/euN8e.jpg的DSPB

怎么了？

因此，ibm-web-bnd.xml丢失了，这是一件非常奇怪的事情...

<web-bnd
    xmlns="http://websphere.ibm.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://websphere.ibm.com/xml/ns/javaee http://websphere.ibm.com/xml/ns/javaee/ibm-web-bnd_1_0.xsd"
    version="1.0">

<resource-ref name="DB_DSPB" binding-name="DB_DSPB"/>
<resource-ref name="DB_DSPB_ACTIVITI" binding-name="DB_DSPB_ACTIVITI"/>

艾瑞克

Answer 1

是的，这是可能的。只需指定单独的

例如:

<dataSource id="ds1" jndiName="jdbc/ds1" jdbcDriverRef="MyJDBCDriver">
    <properties ... />
</dataSource>

<dataSource id="ds2" jndiName="jdbc/ds2" jdbcDriverRef="MyJDBCDriver">
    <properties ... />
</dataSource>

请注意，两个数据源都有一个 jdbc 驱动程序引用，它对应于

<jdbcDriver id="MyJDBCDriver">
    <library>
        <fileset dir="${server.config.dir}/jdbcDrivers" includes="driver.jar"/>
    </library>
</jdbcDriver>

或者，您可以嵌套

<dataSource id="ds1" jndiName="jdbc/ds1">
    <properties ... />
    <jdbcDriver>
        <library>
            <fileset dir="${server.config.dir}/jdbcDrivers" includes="someJDBCDriver.jar"/>
        </library>
    </jdbcDriver>
</dataSource>

这里有一个到IBM官方文档的链接:在Liberty中配置数据库连接