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POIs it possible to read a combination of a System Property and a Customized Property in Spring config file?
 

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  1. POIs it possible to read a combination of a System Property and a Customized Property in Spring config file?
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    <p>I need to know if its possible in Spring to derive a value for a Property by combination of a System-Property and a Customized-Property defined over a PropertyFile.</p> <p><strong>What I've done:</strong></p> <p>1) Configured a -D argument in server as : -Dapp.Env="dev" <br> 2) In my spring-config.xml, defined datasource details as below:</p> <pre><code>&lt;!-- DataSource configurations --&gt; &lt;bean id="myDataSource" class="com.atomikos.jdbc.AtomikosDataSourceBean" init-method="init" destroy-method="close"&gt; &lt;property name="uniqueResourceName" value="myDataSource" /&gt; &lt;property name="xaDataSourceClassName" value="${my.database.xaDriver.class}" /&gt; &lt;property name="xaProperties"&gt; &lt;props&gt; &lt;prop key="URL"&gt;#{systemProperties['appEnv']}.${my.database.jdbcUrl}&lt;/prop&gt; &lt;prop key="user"&gt;#{systemProperties['appEnv']}.${my.database.user}&lt;/prop&gt; &lt;prop key="password"&gt;#{systemProperties['appEnv']}.${my.database.password}&lt;/prop&gt; &lt;/props&gt; &lt;/property&gt; &lt;property name="maxPoolSize" value="${my.database.maxPoolSize}" /&gt; &lt;property name="minPoolSize" value="${my.database.minPoolSize}" /&gt; &lt;property name="borrowConnectionTimeout" value="60" /&gt; &lt;property name="maintenanceInterval" value="120" /&gt; &lt;/bean&gt; </code></pre> <p>3) Defined the following properties in my .properties file: my.database.xaDriver.class=oracle.jdbc.xa.client.OracleXADataSource <br> my.database.initialPoolSize=2 <br> my.database.maxPoolSize=10 <br> my.database.minPoolSize=2 <br></p> <p>dev.my.database.jdbcUrl=jdbc:oracle:thin:@test.com:1535:myDb <br> dev.my.database.user=myuserid <br> dev.my.database.password=mypwd <br></p> <p>4) Defined .properties file location in the spring-config.xml as :</p> <pre><code>&lt;context:property-placeholder location="/WEB-INF/spring/spring-config.properties" /&gt; </code></pre> <p><strong>What I get on start of server :</strong></p> <p>Throwable occurred: org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'myDataSource' defined in ServletContext resource [/WEB-INF/spring/spring-config.xml]: Could not resolve placeholder 'my.database.jdbcUrl' in string value "#{systemProperties['appEnv']}.${my.database.jdbcUrl}"</p> <p><strong>What I also tried :</strong></p> <p>5) Defined a property in .properties file as below: <br> app.Env=dev</p> <p>6) Modified the datasource bean configuration as below:</p> <pre><code> &lt;prop key="URL"&gt;${app.Env}.${my.database.jdbcUrl}&lt;/prop&gt; &lt;prop key="user"&gt;${app.Env}.${my.database.user}&lt;/prop&gt; &lt;prop key="password"&gt;${app.Env}.${my.database.password}&lt;/prop&gt; </code></pre> <p>However on start of server, I get same exception message :</p> <p>Throwable occurred: org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'myDataSource' defined in ServletContext resource [/WEB-INF/spring/spring-config.xml]: Could not resolve placeholder 'my.database.jdbcUrl' in string value "${app.Env}.${my.database.jdbcUrl}"</p> <p>Can someone help me out in pointing out what mistake I might be doing and what is/are the possible fix for this issue ?</p>
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