zuul路由会在发送到应用程序后端之前剥离请求的有效载荷和附件（SOAP-multipartrelated）。

在Zuul网关中启用请求和响应的调试日志记录，以便查看所有传入和传出请求的详细信息，例如有效负载和头信息。此外，可以使用自定义过滤器来访问请求和响应，并针对请求进行必要的处理，以确保有效负载和附件不会被剥离。

例如，以下代码演示如何在Zuul网关中使用自定义过滤器来处理SOAP - multipartrelated请求：

public class StripPayloadFilter extends ZuulFilter {

    @Override
    public String filterType() {
        return "pre";
    }

    @Override
    public int filterOrder() {
        return 0;
    }

    @Override
    public boolean shouldFilter() {
        RequestContext context = RequestContext.getCurrentContext();
        HttpServletRequest request = context.getRequest();
        return request.getContentType() != null && request.getContentType().toLowerCase().contains("multipart/related");
    }

    @Override
    public Object run() throws ZuulException {
        RequestContext context = RequestContext.getCurrentContext();
        HttpServletRequest request = context.getRequest();

        try {
            MimeMultipart multipart = new MimeMultipart(new ByteArraInputStream(request.getInputStream()));

            /* process and attach payload and attachments */

            ByteArrayOutputStream out = new ByteArrayOutputStream();
            multipart.writeTo(out);
            context.setRequest(new HttpServletRequestWrapper(request) {
                @Override
                public ServletInputStream getInputStream() throws IOException {
                     return new ByteArrayInputStream(out.toByteArray());
                }
            });
        } catch (IOException | MessagingException e) {
            throw new ZuulException(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR.value(), e.getMessage());
        }

        return null;
    }
}

然后，只需将此过滤器添加到Zuul网关配置中即可：

@Bean
public StripPayloadFilter stripPayloadFilter() {
    return new StripPayloadFilter();
}

@Bean
public ZuulFilterInitializer zuulFilterInitializer() {
    return new ZuulFilterInitializer(stripPayloadFilter());
}