soap - CXF传出拦截器得到的 SOAP 响应正文始终为空吗？

Question

我写了一个拦截器进行测试。但是我在Interceptor中获得的Soap消息正文始终为null。

我的Cxf是Apache-CXF-2.4.0

bean.xml是这样的:

<cxf:bus>
    <cxf:outInterceptors>
        <ref bean="myOutSoapInterceptor"/>
  </cxf:outInterceptors>
</cxf:bus>

拦截器文件:

public class MySoapInterceptorImpl extends AbstractSoapInterceptor implements IMySoapInterceptor {

public MySoapInterceptorImpl()
{
    super(Phase.WRITE );
    addAfter(SoapOutInterceptor.class.getName());
}


public void handleMessage(SoapMessage msg) throws Fault {
    // TODO Auto-generated method stub
    String soapContent ;
    SOAPMessage sm = msg.getContent(SOAPMessage.class);

    /*sm is always null!*/
    }
 }

Answer 1

要从 SOAP 消息中获取响应xml，可以使用“CacheAndWriteOutputStream”和“CachedOutputStreamCallback”。在回调类中，您可以在关闭流之前获取消息。说，我们的LoggingInterceptor输出是“wsLoggingOutInterceptor”，可以在上下文文件中进行如下配置:

<bean id="loggingInInterceptor" class="org.apache.cxf.interceptor.LoggingInInterceptor"/>
<bean id="logOutInterceptor" class="org.apache.cxf.interceptor.LoggingOutInterceptor"/>
<bean id="wsLoggingOutInterceptor" class="org.jinouts.webservice.logging.WSLoggingOutInterceptor"></bean>

   <cxf:bus>
        <cxf:inInterceptors>
            <ref bean="loggingInInterceptor"/>           
        </cxf:inInterceptors>
        <cxf:outInterceptors>
            <ref bean="logOutInterceptor"/>
            <ref bean="wsLoggingOutInterceptor"/>
       </cxf:outInterceptors>
    </cxf:bus>

请注意，这里我们还有一些默认拦截器，可与CXF jars一起使用。
现在，在我们自己的拦截器中，我们可以通过以下方式记录输出响应消息，或者您也可以在此处进行编辑:

/**
 * @author asraf
 * asraf344@gmail.com
 */
public class WSLoggingOutInterceptor extends AbstractLoggingInterceptor
{
    public WSLoggingOutInterceptor() 
    {
        super(Phase.PRE_STREAM );
    }

    @Override
    public void handleMessage ( Message message ) throws Fault
    {
        // TODO Auto-generated method stub
        OutputStream os = message.getContent ( OutputStream.class );
        CacheAndWriteOutputStream cwos = new CacheAndWriteOutputStream ( os);
        message.setContent ( OutputStream.class, cwos );

        cwos.registerCallback ( new LoggingOutCallBack ( ) );
    }

    @Override
    protected Logger getLogger ( )
    {
        // TODO Auto-generated method stub
        return null;
    }
}
class LoggingOutCallBack implements CachedOutputStreamCallback
{
    @Override
    public void onClose ( CachedOutputStream cos )
    {
        try
        {
            if ( cos != null )
            {
                System.out.println ("Response XML in out Interceptor : " + IOUtils.toString ( cos.getInputStream ( ) ));
            }

        }
        catch ( Exception e )
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }       
    }

    @Override
    public void onFlush ( CachedOutputStream arg0 )
    {

    }   
}

看看这个网站了解更多详细信息: http://cxf.apache.org/docs/interceptors.html