主要特性：

• Makes the Best Practice an Easy Practice: Spring Web Services makes enforcing best practices easier. This includes practices such as the WS-I basic profile, Contract-First development, and having a loose coupling between contract and implementation.
• Powerful mappings: You can distribute incoming XML request to any object, depending on message payload, SOAP Action header, or an XPath expression.
• XML API support: Incoming XML messages can be handled in standard JAXP APIs such as DOM, SAX, and StAX, but also JDOM, dom4j, XOM, or even marshalling technologies.
• Flexible XML Marshalling: The Object/XML Mapping module in the Spring Web Services distribution supports JAXB 1 and 2, Castor, XMLBeans, JiBX, and XStream. And because it is a separate module, you can use it in non-Web services code as well.
• Reuses your Spring expertise: Spring-WS uses Spring application contexts for all configuration, which should help Spring developers get up-to-speed nice and quickly. Also, the architecture of Spring-WS resembles that of Spring-MVC.
• Supports WS-Security: WS-Security allows you to sign SOAP messages, encrypt and decrypt them, or authenticate against them.
• Integrates with Spring Security: The WS-Security implementation of Spring Web Services provides integration with Spring Security. This means you can use your existing configuration for your SOAP service as well.
• Built by Maven: This assists you in effectively reusing the Spring Web Services artifacts in your own Maven-based projects.
• Apache license. You can confidently use Spring-WS in your project.