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    <p>There is a following chart (from <a href="http://ogrigas.eu/spring/2009/12/diagram-of-spring-3-0-module-dependencies" rel="noreferrer">Diagram of Spring 3.0 module dependencies</a>):</p> <p><img src="https://i.stack.imgur.com/x81Al.png" alt="alt text"></p> <p>As you can see, there are several groups of modules:</p> <ul> <li><p>"Core Spring" - <code>context</code> and its dependencies (<code>asm</code> is missed, <code>aop</code> depends on it) </p></li> <li><p>Web</p> <ul> <li><code>web</code> - basic webapp integration</li> <li><code>webmvc</code> (<code>web.servlet</code>) - Spring MVC Framework</li> <li><code>webmvc-portlet</code> (<code>web.portlet</code>) - Spring MVC for portlets</li> <li><code>web.struts</code> - Struts integration</li> </ul></li> <li><p>Data access</p> <ul> <li><code>tx</code> (<code>transaction</code>) - basic transaction support</li> <li><code>jdbc</code> - JDBC support</li> <li><code>orm</code> - ORM integration </li> </ul></li> <li><p>Other modules</p> <ul> <li><code>context-support</code> - integration with Quartz, Javamail, Ehcache, etc</li> <li><code>jms</code>, <code>oxm</code> - JMS and object-XML mapping respectively</li> <li><code>test</code> - for unit testing</li> <li><code>aspects</code> - <a href="http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/aop.html#aop-using-aspectj" rel="noreferrer">AspectJ intergration</a> (usually not needed)</li> <li><code>instrument</code>, <code>instrument.tomcat</code> - <a href="http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/aop.html#aop-aj-ltw" rel="noreferrer">load-time weaving</a></li> </ul></li> </ul> <p>So, if you use build tool that supports transitive dependencies (such as Maven), you usually only need to declare the required modules from <strong>web</strong> and <strong>data</strong> groups, and some from the <strong>other</strong> modules, if needed. Also you may need to declare <code>context</code> in order to <a href="http://blog.springsource.com/2009/12/04/logging-dependencies-in-spring/" rel="noreferrer">configure logging</a>.</p> <p>For example, if you want to create a web application with Spring MVC and Hibernate, you declare <code>webmvc</code> (<code>web.servlet</code>) and <code>orm</code>. If you don't use Maven, you also need to import their transitive dependencies, as shown on the chart.</p> <p><strong>See also:</strong></p> <ul> <li><a href="http://ogrigas.eu/spring/2009/12/diagram-of-spring-3-0-module-dependencies" rel="noreferrer">Diagram of Spring 3.0 module dependencies</a></li> <li><a href="http://blog.springsource.com/2009/12/02/obtaining-spring-3-artifacts-with-maven/" rel="noreferrer">Obtaining Spring 3 Artifacts with Maven</a></li> <li><a href="http://blog.springsource.com/2009/12/04/logging-dependencies-in-spring/" rel="noreferrer">Logging Dependencies in Spring</a></li> </ul>
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    1. COSweet, I hadn't seen that before. I miss `spring.jar`.
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