18.17. 附加支持

POJO 模式： 支持带有 Attachment 和 MTOM 的 SOAP （请参阅启用 MTOM 的 Payload 模式）。但是，没有测试带有 Attachment 的 SOAP。由于附件被分为 marshalled 和 unmarshalled into POJO，因此用户通常不需要处理他们自己的附件。如果没有启用 MTOM，则会将附件传播到 Camel 消息的附加。因此，可以通过 Camel Message API 检索附件

DataHandler Message.getAttachment(String id)

有效负载模式： 组件支持 MTOM。附加可通过上述 Camel Message API 检索。支持具有附加(SwA)的 SOAP，并且可以检索附件。SwA 是默认值（与将 CXF 端点属性 "mtom-enabled" 设置为 false）。

要启用 MTOM，请将 CXF 端点属性 "mtom-enabled" 设置为 true。

@Bean
public CxfEndpoint routerEndpoint() {
    CxfSpringEndpoint cxfEndpoint = new CxfSpringEndpoint();
    cxfEndpoint.setServiceNameAsQName(SERVICE_QNAME);
    cxfEndpoint.setEndpointNameAsQName(PORT_QNAME);
    cxfEndpoint.setAddress("/" + getClass().getSimpleName()+ "/jaxws-mtom/hello");
    cxfEndpoint.setWsdlURL("mtom.wsdl");
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put("dataFormat", "PAYLOAD");
    properties.put("mtom-enabled", true);
    cxfEndpoint.setProperties(properties);
    return cxfEndpoint;
}

您可以生成带有 attachment 的 Camel 消息，以便在 Payload 模式中发送到 CXF 端点。

Exchange exchange = context.createProducerTemplate().send("direct:testEndpoint", new Processor() {

    public void process(Exchange exchange) throws Exception {
        exchange.setPattern(ExchangePattern.InOut);
        List<Source> elements = new ArrayList<Source>();
        elements.add(new DOMSource(DOMUtils.readXml(new StringReader(MtomTestHelper.REQ_MESSAGE)).getDocumentElement()));
        CxfPayload<SoapHeader> body = new CxfPayload<SoapHeader>(new ArrayList<SoapHeader>(),
            elements, null);
        exchange.getIn().setBody(body);
        exchange.getIn().addAttachment(MtomTestHelper.REQ_PHOTO_CID,
            new DataHandler(new ByteArrayDataSource(MtomTestHelper.REQ_PHOTO_DATA, "application/octet-stream")));

        exchange.getIn().addAttachment(MtomTestHelper.REQ_IMAGE_CID,
            new DataHandler(new ByteArrayDataSource(MtomTestHelper.requestJpeg, "image/jpeg")));

    }

});

// process response

CxfPayload<SoapHeader> out = exchange.getOut().getBody(CxfPayload.class);
Assert.assertEquals(1, out.getBody().size());

Map<String, String> ns = new HashMap<String, String>();
ns.put("ns", MtomTestHelper.SERVICE_TYPES_NS);
ns.put("xop", MtomTestHelper.XOP_NS);

XPathUtils xu = new XPathUtils(ns);
Element oute = new XmlConverter().toDOMElement(out.getBody().get(0));
Element ele = (Element)xu.getValue("//ns:DetailResponse/ns:photo/xop:Include", oute,
                                   XPathConstants.NODE);
String photoId = ele.getAttribute("href").substring(4); // skip "cid:"

ele = (Element)xu.getValue("//ns:DetailResponse/ns:image/xop:Include", oute,
                                   XPathConstants.NODE);
String imageId = ele.getAttribute("href").substring(4); // skip "cid:"

DataHandler dr = exchange.getOut().getAttachment(photoId);
Assert.assertEquals("application/octet-stream", dr.getContentType());
MtomTestHelper.assertEquals(MtomTestHelper.RESP_PHOTO_DATA, IOUtils.readBytesFromStream(dr.getInputStream()));

dr = exchange.getOut().getAttachment(imageId);
Assert.assertEquals("image/jpeg", dr.getContentType());

BufferedImage image = ImageIO.read(dr.getInputStream());
Assert.assertEquals(560, image.getWidth());
Assert.assertEquals(300, image.getHeight());

您还可以以 Payload 模式使用从 CXF 端点接收的 Camel 消息。CxfMtomConsumerPayloadModeTest 演示了如何工作：

public static class MyProcessor implements Processor {

    @SuppressWarnings("unchecked")
    public void process(Exchange exchange) throws Exception {
        CxfPayload<SoapHeader> in = exchange.getIn().getBody(CxfPayload.class);

        // verify request
        Assert.assertEquals(1, in.getBody().size());

        Map<String, String> ns = new HashMap<String, String>();
        ns.put("ns", MtomTestHelper.SERVICE_TYPES_NS);
        ns.put("xop", MtomTestHelper.XOP_NS);

        XPathUtils xu = new XPathUtils(ns);
        Element body = new XmlConverter().toDOMElement(in.getBody().get(0));
        Element ele = (Element)xu.getValue("//ns:Detail/ns:photo/xop:Include", body,
                                           XPathConstants.NODE);
        String photoId = ele.getAttribute("href").substring(4); // skip "cid:"
        Assert.assertEquals(MtomTestHelper.REQ_PHOTO_CID, photoId);

        ele = (Element)xu.getValue("//ns:Detail/ns:image/xop:Include", body,
                                           XPathConstants.NODE);
        String imageId = ele.getAttribute("href").substring(4); // skip "cid:"
        Assert.assertEquals(MtomTestHelper.REQ_IMAGE_CID, imageId);

        DataHandler dr = exchange.getIn().getAttachment(photoId);
        Assert.assertEquals("application/octet-stream", dr.getContentType());
        MtomTestHelper.assertEquals(MtomTestHelper.REQ_PHOTO_DATA, IOUtils.readBytesFromStream(dr.getInputStream()));

        dr = exchange.getIn().getAttachment(imageId);
        Assert.assertEquals("image/jpeg", dr.getContentType());
        MtomTestHelper.assertEquals(MtomTestHelper.requestJpeg, IOUtils.readBytesFromStream(dr.getInputStream()));

        // create response
        List<Source> elements = new ArrayList<Source>();
        elements.add(new DOMSource(DOMUtils.readXml(new StringReader(MtomTestHelper.RESP_MESSAGE)).getDocumentElement()));
        CxfPayload<SoapHeader> sbody = new CxfPayload<SoapHeader>(new ArrayList<SoapHeader>(),
            elements, null);
        exchange.getOut().setBody(sbody);
        exchange.getOut().addAttachment(MtomTestHelper.RESP_PHOTO_CID,
            new DataHandler(new ByteArrayDataSource(MtomTestHelper.RESP_PHOTO_DATA, "application/octet-stream")));

        exchange.getOut().addAttachment(MtomTestHelper.RESP_IMAGE_CID,
            new DataHandler(new ByteArrayDataSource(MtomTestHelper.responseJpeg, "image/jpeg")));

    }
}

原始模式： 不支持过期，因为它根本不处理消息。

CXF_RAW Mode ：支持 MTOM，并且前面提到的 Camel Message API 可以检索过期。请注意，当收到多部分（即 MTOM）消息时，默认的 SOAPMessage 到 String converter 将提供正文的完整多部分有效负载。如果您只需要 SOAP XML 作为字符串，您可以使用 message.getSOAPPart （）设置消息正文，Camel convert 可以为您执行其余工作。