jboss 7 部署 cas
cas 版本为 3.4.11
另外新的cas，做 jboss 集群时不用在 web.xml 配置 session 复制，即不需要在 web.xml 中增加：

主要参考：http://www.liferay.com/community/wiki/-/wiki/Main/JBoss+AS7+tips#section-JBoss+AS7+tips-Installing+cas-web

Even default cas.war, built from the source, can not be deployed to the Jboss AS7 without further modifications. Here are the steps how to deploy our cas-web plugin:

• deploy cas-web. Deployment will fail (Connection cannot be null when 'hibernate.dialect' not set). Stop JBoss server.
• go to cas web exploded folder: /bundles/jboss-7.0.2/standalone/deployments/cas-web.war
• Locate: cas-web.war/WEB-INF/lib/cas-server-core-3.3.5.jar. Modify it: remove /META-INF/persistence.xml from it
• Create WEB-INF/classes/META-INF/persistence.xml with content displayed bellow.
• Delete cas-web.war/WEB-INF/lib/dom4j-1.6.1.jar
• Start jboss as7. Wait until everything is up. Trigger deployment of cas-web by creating file:cas-web.war.dodeploy in JBoss standalone deployment folder.

The content of persistence.xml file is:

<persistence xmlns="http://java.sun.com/xml/ns/persistence"

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

        xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"

        version="2.0">

    <persistence-unit name="CasPersistence" transaction-type="RESOURCE_LOCAL">

          <properties>

            <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>

          </properties>

    </persistence-unit>

</persistence>

Note: newer versions of cas.war already has the persistence.xml extracted from the core jar. Moreover, newever persistence.xml contains some additional definitions, be sure not to delete them when adding 'hibernate.dialect' property.

其中persistence.xml文件可以不删除，添加：

<properties>

            <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>

          </properties>

就可以运行。