Axis2和Axis1.x对比

Speed

Axis2 uses its own object model and StAX (Streaming API for XML) parsing to achieve significantly greater speed than earlier versions of Apache Axis.
Low memory foot print- Axis2 was designed ground-up keeping low memory foot print in mind.

AXIOM

Axis2 comes with its own light-weight object model, AXIOM, for message processing which is extensible, highly performant and is developer convenient.

Hot Deployment

Axis2 is equipped with the capability of deploying Web services and handlers while the system is up and running. In other words, new services can be added to the system without having to shut down the server. Simply drop the required Web service archive into the services directory in the repository, and the deployment model will automatically deploy the service and make it available for use.

Asynchronous Web services

Axis2 now supports asynchronous Web services and asynchronous Web services invocation using non-blocking clients and transports.

MEP Support

Axis2 now comes handy with the flexibility to support Message Exchange Patterns (MEPs) with in-built support for basic MEPs defined in WSDL 2.0.

Flexibility

The Axis2 architecture gives the developer complete freedom to insert extensions into the engine for custom header processing, system management, and anything else you can imagine.

Stability

Axis2 defines a set of published interfaces which change relatively slowly compared to the rest of Axis.

Component-oriented Deployment

You can easily define reusable networks of Handlers to implement common patterns of processing for your applications, or to distribute to partners.

Transport Framework

We have a clean and simple abstraction for integrating and using Transports (i.e., senders and listeners for SOAP over various protocols such as SMTP, FTP, message-oriented middleware, etc), and the core of the engine is completely transport-independent.

WSDL support

Axis2 supports the Web Service Description Language, version 1.1 and 2.0, which allows you to easily build stubs to access remote services, and also to automatically export machine-readable descriptions of your deployed services from Axis2.

Composition and Extensibility

Modules and phases improve support for composability and extensibility. Modules support composability and can also support new WS-* specifications in a simple and clean manner. They are however not hot deployable as they change the overall behavior of the system.