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Asked: 2026-05-29T23:21:52+00:00

I know this is probably a dumb question but I can’t figure it out

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I know this is probably a dumb question but I can’t figure it out for the life of me. Basically I am using maven to set my dataSource username, password, and driver class name. When I look in the effective Pom.xml it all appears fine as follows 

<dataSource.driverClassName>oracle.jdbc.driver.OracleDriver</dataSource.driverClassName>
<dataSource.username>someUsername</dataSource.username>
<dataSource.password>somePassword</dataSource.password>

I am trying to use this information when declaring a spring datasource. The code appears as follows.

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="${dataSource.driverClassName}"/>
    <property name="url" value="${dataSource.url}"/>
    <property name="username" value="${dataSource.username}"/>
    <property name="password" value="${dataSource.password}"/>
</bean>

I then pass the datasource into a jdbcTemplate but when I use the template to run sql statements in my code I get an error saying that no driver with the name ${dataSource.driverClassName} can be found. This is obviously because the string constant is being passed rather than the variable. What am I missing?

Thanks

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1 Answer

  1. Editorial Team

    Spring is expecting to find those values in a .properties file.

    Inject a PropertyConfigurationPlaceholder with those values and Spring will find them.

    http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/beans/factory/config/PropertyPlaceholderConfigurer.html

    Look for example 3.8.2.1 below:

    http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/beans.html

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