如何在Spring WS中获取SOAP XML请求/响应文档？

import org.springframework.ws.context.MessageContext;
import org.springframework.ws.server.endpoint.interceptor.EndpointInterceptorAdapter;

public class SoapInterceptor extends EndpointInterceptorAdapter {

    @Override
    public boolean handleRequest(MessageContext messageContext, Object endpoint) throws Exception {
        // 获取SOAP请求的相关信息
        SoapMessage soapMessage = (SoapMessage) messageContext.getRequest();
        SoapHeader soapHeader = soapMessage.getSoapHeader();
        SoapBody soapBody = soapMessage.getSoapBody();

        // 进一步处理SOAP请求信息
        // ...

        return true;
    }

    @Override
    public boolean handleResponse(MessageContext messageContext, Object endpoint) throws Exception {
        // 获取SOAP响应的相关信息
        SoapMessage soapMessage = (SoapMessage) messageContext.getResponse();
        SoapHeader soapHeader = soapMessage.getSoapHeader();
        SoapBody soapBody = soapMessage.getSoapBody();

        // 进一步处理SOAP响应信息
        // ...

        return true;
    }
}