title: List of Spring EL Variables?
body: <p>Spring EL supports a some predefined variables</p>
  
  <ul>
  <li><code>{#systemProperties. ... }</code></li>
  <li><code>{#systemEnvironment. ... }</code></li>
  <li><code>{#request. ...}</code></li>
  <li><code>{#session. ...}</code></li>
  </ul>
  
  <p>The first two once are documented in the <a href="http://static.springsource.org/spring/docs/current/spring-framework-reference/html/expressions.html#expressions-beandef" rel="nofollow noreferrer">Spring Reference: chapter 6. Spring Expression Language (SpEL)</a>.
  The two others are not mentioned in the Spring Reference (or I did not found them.) (I found them in this <a href="http://www.slideshare.net/eadno1/spring-has-got-me-under-its-spel" rel="nofollow noreferrer">slides</a>, as well as its usage in <a href="http://static.springsource.org/spring-social/docs/1.0.x/reference/html/connecting.html" rel="nofollow noreferrer">spring social</a> and this <a href="https://stackoverflow.com/q/7885055/280244">question</a>).</p>
  
  <p><strong>So my question is: is there a more or less complete list of predefined spring-el variables?</strong></p>
  
  <p>I guess that some of this predefined variables are not defined by spring core itself, but by "activating" of some modules like spring-mvc. So I am interested in the the variables <strong>that are available in a more or less common spring + jpa + mvc + security application</strong>.</p>