我照着x-4-7 这篇文章练习如何使用axis,我把类samples.capacity.Capacity放到%tomcat_home%\webapps\axis\samples\capacity目下，并照着例子写了一个deploy.wsdd文件，并部署成功，但是当我用ie访问http://localhost:8080/axis/services/Capacity?wsdl页面的时候却出错：
AXIS error
Sorry, something seems to have gone wrong... here are the details:

Fault - ; nested exception is:
    org.apache.axis.ConfigurationException: Could not find class for the service named: samples.capacity.Capacity
Hint: you may need to copy your class files/tree into the right location (which depends on the servlet system you are using).; nested exception is:
    java.lang.ClassNotFoundException: samples.capacity.Capacity

...


请问我该如何处理，为什么找不到类呢

附：deploy.wsdd

<deployment xmlns="http://xml.apache.org/axis/wsdd/"
xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">

<service name="Capacity" provider="java:RPC">

<parameter name="className" value="samples.capacity.Capacity"/>
<parameter name="allowedMethods" value="*"/>
</service>
</deployment>
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