<composite xmlns="http://www.osoa.org/xmlns/sca/1.0" name="Employee">
<service name="HelloWorldService"
promote="HelloWorldServiceComponent">
<interface.wsdl
interface="http://helloworld#wsdl.interface(HelloWorld)" />
<binding.ws uri="http://localhost:8085/HelloWorldService" />
</service>
<component name="HelloWorldServiceComponent">
<implementation.java class="helloworld.HelloWorldImpl" />
</component>
</composite>

<wsdl:definitions targetNamespace="http://helloworld"
xmlns:tns="http://helloworld" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
name="helloworld">
<wsdl:types>
<schema elementFormDefault="qualified" targetNamespace="http://helloworld"
xmlns="http://www.w3.org/2001/XMLSchema">
<element name="getGreetings">
<complexType>
<sequence>
<element name="name" type="xsd:string"/>
</sequence>
</complexType>
</element>
<element name="getGreetingsResponse">
<complexType>
<sequence>
<element name="getGreetingsReturn" type="xsd:string"/>
</sequence>
</complexType>
</element>
</schema>
</wsdl:types>
<wsdl:message name="getGreetingsRequest">
<wsdl:part element="tns:getGreetings" name="parameters"/>
</wsdl:message>
<wsdl:message name="getGreetingsResponse">
<wsdl:part element="tns:getGreetingsResponse" name="parameters"/>
</wsdl:message>
<wsdl:portType name="HelloWorld">
<wsdl:operation name="getGreetings">
<wsdl:input message="tns:getGreetingsRequest" name="getGreetingsRequest"/>
<wsdl:output message="tns:getGreetingsResponse" name="getGreetingsResponse"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="HelloWorldSoapBinding" type="tns:HelloWorld">
<wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="getGreetings">
<wsdlsoap:operation soapAction=""/>
<wsdl:input name="getGreetingsRequest">
<wsdlsoap:body use="literal"/>
</wsdl:input>
<wsdl:output name="getGreetingsResponse">
<wsdlsoap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="HelloWorldService">
<wsdl:port binding="tns:HelloWorldSoapBinding" name="HelloWorldSoapPort">
<wsdlsoap:address location="http://localhost:8085/HelloWorldService"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>

package helloworld;
import org.osoa.sca.annotations.Remotable;
@Remotable
public interface HelloWorldService {
public String getGreetings(String name);
}

 HelloWorldImpl.java

package helloworld;
import org.osoa.sca.annotations.Service;
@Service(HelloWorldService.class)
public class HelloWorldImpl implements HelloWorldService {
public String getGreetings(String name) {
return "hello "+name;
}
}

这样我们就可以写一个类来创建一个SCA中的Domain，并由它来创建组件并发布为一个web服务。

public class HelloWorldServer {
public static void main(String[] args) {
SCADomain scaDomain = SCADomain.newInstance("","","Calculator.composite","Employee.composite");
try {
System.out.println("HelloWorld server started (press enter to shutdown)");
System.in.read();
} catch (IOException e) {
e.printStackTrace();
}
scaDomain.close();
System.out.println("HelloWorld server stopped");
}
}

运行这个类，也就启动了一个SCA的Domain，打开浏览器输入http://localhost:8085/HelloWorldService? wsdl（注意这个是以binding.ws的uri为准的，和wsdl文件中的wsdlsoap:address的location无关，当然在这里它们俩个是一致的），就可以看到发布的服务的wsdl描述，应该和前面的helloworld.wsdl的内容一样。

下面我们写一个groovy的客户端来测试一下这个web服务，代码大概象这样（更多的信息可以参考http://docs.codehaus.org/display/GROOVY/Groovy+SOAP ，要运行下面的代码需要先安装一个groovy的用来除了soap的类库）：

import groovy.net.soap.SoapClient
def proxy = new SoapClient("http://localhost:8085/HelloWorldService?wsdl")
println proxy.getGreetings("yanhua")

 运行它，在控制台可以看到hello yanhua了吗？

有时候我们想查看一下客户端和服务器之间来往的soap消息，我们可以用AXIS提供的一个叫TCPMonitor的工具。先下载AXIS，解压后在AXIS的目录下运行如下的命令：java -classpath ./lib/axis.jar org.apache.axis.utils.tcpmon，这样会打开TCPMonitor这个工具。我们新建一个Listener，设置如下图：

我们把刚才的groovy代码改一下：

import groovy.net.soap.SoapClient
def proxy = new SoapClient("http://localhost:8081/HelloWorldService?wsdl")
println proxy.getGreetings("yanhua")

POST /HelloWorldService HTTP/1.1
SOAPAction: ""
Content-Type: text/xml; charset=UTF-8
User-Agent: Mozilla/4.0
(compatible; MSIE 6.0; Windows NT 5.0; XFire Client +http://xfire.codehaus.org)
Host: 127.0.0.1:8081
Expect: 100-continue
Content-Length: 308
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soap:Body>
<getGreetings xmlns="http://helloworld">
<name xmlns="http://helloworld">yanhua</name>
</getGreetings>
</soap:Body>
</soap:Envelope>

POST /HelloWorldService HTTP/1.1
SOAPAction: ""
Content-Type: text/xml; charset=UTF-8
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; XFire Client +http://xfire.codehaus.org)
Host: 127.0.0.1:8081
Expect: 100-continue
Content-Length: 308
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soap:Body>
<getGreetings xmlns="http://helloworld">
<name xmlns="http://helloworld">yanhua</name>
</getGreetings>
</soap:Body>
</soap:Envelope>

原文地址