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    <h1>UPDATE</h1> <p>We later upgraded to Spring 3.0.X and we were able to take advantage of the spring expression language. Our approach simplified from three beans to the following snippet:</p> <pre><code>&lt;bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"&gt; &lt;property name="locations"&gt; &lt;list&gt; &lt;value&gt;classpath:defaults.properties&lt;/value&gt; &lt;value&gt;file:/a/defined/location/project.properties&lt;/value&gt; &lt;value&gt;file:${AN_ENV_CONFIGURED_DIR}/project.properties&lt;/value&gt; &lt;/list&gt; &lt;/property&gt; &lt;property name="ignoreResourceNotFound" value="true" /&gt; &lt;property name="searchSystemEnvironment" value="true" /&gt; &lt;property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" /&gt; &lt;/bean&gt; </code></pre> <p>This allowed us to have either a development (the first defaults) statically well known location, or a deployed location configured via env variables. The configurer processes these in order (i.e. the deployed takes precedence over the defaults).</p> <h1>OLD</h1> <p>I ended up going with a non programmatic approach. I used a MethodInvoker to retrieve the environment value. I was able to then pass that into the FileSystemResource. </p> <pre><code>&lt;bean id="configPath" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean" &gt; &lt;property name="targetClass" value="java.lang.String" /&gt; &lt;property name="staticMethod" value="java.lang.System.getenv" /&gt; &lt;property name="arguments"&gt; &lt;list&gt; &lt;value&gt;NAME_OF_VARIABLE&lt;/value&gt; &lt;/list&gt; &lt;/property&gt; &lt;/bean&gt; </code></pre>
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    1. POCan I use an Environment variable based location for Spring FileSystemResource?
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    1. COwhat is the ${AN_ENV_CONFIGURED_DIR} ?
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    2. COSpring EL. just a property or environment variable (assuming your properiesplaceholderconfigurer is set to search environment variables.
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    3. COi tried your solution and it doesn't work, i made a new environment variable that contains the path of specific property file. i have two questions 1. can you please put the value of the environment variable and how you defined it in environment variables ? second question is that the value of the environment variable is getting replaced during runtime or compiled time ? and how to know that the value is replaced correctly ?
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