Spring Soap拦截器如何修改消息的内容？

public class CustomInterceptor implements EndpointInterceptor {

    @Override
    public boolean handleRequest(MessageContext messageContext, Object endpoint) throws Exception {
        // 在请求处理之前被调用
        SoapMessage soapMessage = (SoapMessage) messageContext.getRequest();
        // 修改消息内容
        soapMessage.setPayload(new DOMSource(createModifiedDocument(soapMessage.getPayload())));
        return true;
    }

    @Override
    public boolean handleResponse(MessageContext messageContext, Object endpoint) throws Exception {
        // 在请求处理完成后被调用
        SoapMessage soapMessage = (SoapMessage) messageContext.getResponse();
        // 修改消息内容
        soapMessage.setPayload(new DOMSource(createModifiedDocument(soapMessage.getPayload())));
        return true;
    }

    private Document createModifiedDocument(Source source) throws Exception {
        // 创建一个新的Document对象，并对内容进行修改
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document document = builder.newDocument();

        // 在这里对原始消息进行修改，例如添加、删除、修改元素等操作

        return document;
    }

    @Override
    public void afterCompletion(MessageContext messageContext, Object endpoint, Exception ex) throws Exception {
        // 在请求完成后被调用，可以进行一些清理操作
    }
}

<bean id="customInterceptor" class="com.example.CustomInterceptor" />

<sws:interceptors>
    <bean class="org.springframework.ws.server.endpoint.interceptor.PayloadLoggingInterceptor" />
    <ref bean="customInterceptor" />
</sws:interceptors>