title: How to set spring bootstrap.properties at execution time
body: <p>Is it possible to set the contents of Spring's bootstrap.properties at execution time?</p>
  
  <p>I have a client application for Spring's cloud config which holds a line to point to the config server:</p>
  
  <pre><code>spring.cloud.config.url = http://localhost:8888
  </code></pre>
  
  <p>And I would like to set this config. I tried setting it like application.properties can be set:</p>
  
  <pre><code>java -jar ./config-client.jar --spring.cloud.config.url=http://localhost:8888
  </code></pre>
  
  <p>But it didn't work. So my question is, how can I set this property at execution time?</p>