Spring ClientInterceptor 在响应中显示空的 SOAP 标头

Question

我有一个 SOAP 服务，我需要与之交谈。第一个 SOAP 请求在 SOAP 标头中接收带有sessionID元素的响应，我需要在最终发布命令中发送该元素。

为了获取这个 sessionID 值，我计划使用ClientInterceptor。在我的WebServiceGatewaySupport实现中，我注册了我的拦截器：

this.setInterceptors(new ClientInterceptor[] { new MyWebServiceClientInterceptor() });

我的拦截器：

public class MyWebServiceClientInterceptor implements ClientInterceptor {

    public final QName SessionID_QNAME = new QName("http://xml.example.com/ws/session", "sessionID");

    public boolean handleFault(MessageContext context) throws WebServiceClientException {
        logger.info("Handle Fault");
        return true;
    }       

    public boolean handleResponse(MessageContext context) throws WebServiceClientException {
        logger.info("Handle Response");
        SoapMessage soapMessage = (SoapMessage) context.getRequest();
        SoapHeader soapHeader = soapMessage.getSoapHeader();

        logger.info("Response Header: " + soapHeader.getName());
        Iterator<SoapHeaderElement> qn = soapHeader.examineAllHeaderElements();
        while (qn.hasNext()) {
            SoapElement elem = qn.next();
            logger.info(elem.toString());
        }
        Iterator<QName> an = soapHeader.getAllAttributes();
        while (an.hasNext()) {
            QName elem = an.next();
            logger.info(elem.toString());
        }
        return true;
    }

    public boolean handleRequest(MessageContext context) throws WebServiceClientException {
        logger.info("Handle Request");
        return true;
    }
}

但是，我不断返回一个空的 SOAP 标头。我正在运行 Wireshark 并且可以清楚地看到返回的 SOAP 数据包中的sessionID令牌，因此对正在发生的事情一无所知。有任何想法吗？

Answer 1

我是个白痴。'这是一个错字。我需要打电话：

SoapMessage soapMessage = (SoapMessage) context.getResponse();

不是：

SoapMessage soapMessage = (SoapMessage) context.getRequest();

那些想要在请求上设置标头并在响应上接收标头的完整代码：

ClientInterceptor 接收自定义 SOAP 标头值：

public class MyWebServiceClientInterceptor implements ClientInterceptor {

    public boolean handleFault(MessageContext context) throws WebServiceClientException {
        return true;
    }

    public boolean handleResponse(MessageContext context) throws WebServiceClientException {
        SoapMessage soapMessage = (SoapMessage) context.getResponse();
        SoapHeader soapHeader = soapMessage.getSoapHeader();

        Iterator<SoapHeaderElement> qn = soapHeader.examineHeaderElements(MY_SESSIONID_QNAME);

        while (qn.hasNext()) {
            SoapElement elem = qn.next();
            SoapHeaderElement headerElem = (SoapHeaderElement) elem;
            if (StringUtil.validString(headerElem.getText())) {
                if (!headerElem.getText().equals(sessionId)) {
                    sessionId = headerElem.getText();
                    logger.info("Bound to Session ID: " + sessionId);
                }
            }
        }
        return true;
    }

    public boolean handleRequest(MessageContext context) throws WebServiceClientException {
        return true;
    }
}

我在哪里使用拦截器：

public class MySoapClient extends WebServiceGatewaySupport {

public MySoapClient() {
    this.setInterceptors(new ClientInterceptor[] { new MyWebServiceClientInterceptor() });
    ...
}

...
}

设置自定义 SOAP Header 的回调：class MySoapActionCallback 实现 WebServiceMessageCallback {

    public void doWithMessage(WebServiceMessage message) throws IOException, TransformerException {
        SaajSoapMessage soapMessage = (SaajSoapMessage) message;
        SoapHeaderElement messageId = soapMessage.getSoapHeader().addHeaderElement(SessionID_QNAME);
        if (StringUtil.validString(sessionId)) {
            messageId.setText(sessionId);
        }
    }
}

我在哪里使用回调：

JAXBElement<ReturnType> result = (JAXBElement<ReturnType>) getWebServiceTemplate().marshalSendAndReceive(of.createRelease(null), new MySoapActionCallback());