首先下载soap，把soap.war放到tomcat/webapp/目录下，在classpath下面加入soap.jar、mail.jar和 activation.jar，然后创建一个Service和Client，把Service.class放到 tomcat/webapp/soap/WEB-INF/classes目录下，然后把mail.jar和activation.jar放到 tomcat/webapp/soap/WEB-INF/lib下面，并写一个配置文件用于部署服务。
<isd:service
xmlns:isd="http://xml.apache.org/xml-soap/deployment"
id="urn:service" checkMustUnderstands="true">
<isd:provider type="java" scope="Request" methods="setAlarm">
<isd:java class="work.Service" static="false"/>
</isd:provider>
</isd:service>
上面的work.Service是类的全名，setAlarm是提供的服务名,urn:service是URI。再写一个脚本来调用配置文件部署服务
java org.apache.soap.server.ServiceManagerClient
http://localhost:8080/soap/servlet/rpcrouter deploy deploy.xml
启动Tomcat之后，启动脚本，然后执行Client代码就可以了，Client的主体代码很简单，代码里面就不加入注释了。
Call call = new Call ();
call.setEncodingStyleURI(Constants.NS_URI_SOAP_ENC);
call.setTargetObjectURI ("urn:service");
call.setMethodName ("setAlarm");
Parameter param = new Parameter("alarm", String.class, alarm, Constants.NS_URI_SOAP_ENC);
Vector paramList = new Vector();
paramList.addElement(param);
call.setParams (paramList);
URL url = new URL ("
http://localhost:8080/soap/servlet/rpcrouter");
Response resp = call.invoke (url, "");
if (!resp.generatedFault()) {
// Extract Return value
Parameter result = resp.getReturnValue ();
String greeting = (String) result.getValue();
return greeting;
}
else {
// Extract Fault Code and String
Fault f = resp.getFault();
String faultCode = f.getFaultCode();
String faultString = f.getFaultString();
System.err.println("Fault Occurred (details follow):");
System.err.println("Fault Code: "+faultCode);
System.err.println("Fault String: "+faultString);
return new String ("Fault Occurred. No greeting for you!");
}