Axis2是全新设计的，大家可以试试采用新的架构来让Axis更加的富有弹性，更有效率，并且更加的可配置。Axis2现在具有的一些feature:
peedLow memory foot printAXIOM - AXis Object ModelHot DeploymentAsynchronous Web ServicesMEP Support - Message Exchange PatternsFlexibilityStabilityComponent-oriented deploymentTransport frameworkWSDL support
有些feature现在看不懂，还是先动手做一下，感性认识一下吧
第一步：下载AXIS2。http://ws.apache.org/axis2/download.cgi。很有趣，在apache
的Web Service
的Project目录下面还看不到AXIS2。要下那个binary的版本，因为里面有例程。
第二步：Copy
axis2.war到$TOMCAT_HOME/webapps目录下面。Tomcat好像只能用JDK1.4，我在JDK1.5
用不出来。
第三步：打开http://localhost:8080/axis2，就可以看到axis2的Welcome页面了。点一
下Validate和Services，看是不是都没有错误。都没有错误的话，就表示deploy成功了。
那个adminstration页面可以通过上传文件来hot deploy Web
service，可以用来remote deploy。
第四步：研究例程。先从"samples/userguide/src"目录下的例程看起。看到写一个web service很简单嘛:
public class MyService { public OMElement echo(OMElement element) throws XMLStreamException { //Praparing the OMElement so that it can be attached to another OM Tree. //First the OMElement should be completely build in case it is not fully built and still //some of the xml is in the stream. element.build(); //Secondly the OMElement should be detached from the current OMTree so that it can be attached //some other OM Tree. Once detached the OmTree will remove its connections to this OMElement. element.detach(); return element; } public void ping(OMElement element) throws XMLStreamException { //Do some processing } public void pingF(OMElement element) throws AxisFault{ throw new AxisFault ("Fault being thrown"); }}
看得出来，函数统一使用OMElement作为参数。在META-INF目录下面有个services.xml文件：
<service name="MyService"> <description> This is a sample Web Service with two operations,echo and ping. </description> <parameter name="ServiceClass" locked="false">userguide.example1. MyService</parameter> <operation name="echo"> <messageReceiver class="org.apache.axis2.receivers. RawXMLINOutMessageReceiver"/> </operation> <operation name="ping"> <messageReceiver class="org.apache.axis2.receivers. RawXMLINOnlyMessageReceiver"/> </operation></service>
呵呵，也很简单嘛。有返回值的就用RawXMLINOutMessageReceiver，
没返回值的就用RawXMLINOnlyMessageReceiver。把它们编译(要把axis2的jar写到classpath里去)打包压到
MyService.aar，包里文件目录如下：
./\META-INF/services.xml./userguide/example1/MyService.class
把MyService.aar拷贝到$
TOMCAT_HOME/webapps/axis2/WEB-INF/services，然后去点一下http://localhost:
8080/axis2页面上的Services，也就是http://localhost:8080/axis2/listServices.jsp，就
可以看到MySer
.: 
