This part of the reference documentation covers the Spring Framework's integration with a number of J2EE (and related) technologies.
Chapter 17, Remoting and web services using Spring
Chapter 18, Enterprise Java Beans (EJB) integration
Chapter 19, JMS (Java Message Service)
Chapter 20, JMX
Chapter 21, JCA CCI
Chapter 22, Email
Chapter 23, Scheduling and Thread Pooling
Chapter 24, Dynamic language support
Chapter 25, Annotations and Source Level Metadata Support