import com.sun.xml.internal.ws.api.message.AttachmentEx; //导入依赖的package包/类
static protected void addAttachmentsToSOAPMessage(SOAPMessage msg, Message message) {
    for(Attachment att : message.getAttachments()) {
        AttachmentPart part = msg.createAttachmentPart();
        part.setDataHandler(att.asDataHandler());

        // Be safe and avoid double angle-brackets.
        String cid = att.getContentId();
        if (cid != null) {
            if (cid.startsWith("<") && cid.endsWith(">"))
                part.setContentId(cid);
            else
                part.setContentId('<' + cid + '>');
        }

        // Add any MIME headers beside Content-ID, which is already
        // accounted for above, and Content-Type, which is provided
        // by the DataHandler above.
        if (att instanceof AttachmentEx) {
            AttachmentEx ax = (AttachmentEx) att;
            Iterator<AttachmentEx.MimeHeader> imh = ax.getMimeHeaders();
            while (imh.hasNext()) {
                AttachmentEx.MimeHeader ame = imh.next();
                if ((!"Content-ID".equals(ame.getName()))
                        && (!"Content-Type".equals(ame.getName())))
                    part.addMimeHeader(ame.getName(), ame.getValue());
            }
        }
        msg.addAttachmentPart(part);
    }
}
 

import com.sun.xml.internal.ws.api.message.AttachmentEx; //导入依赖的package包/类
@Override
public Iterator<MimeHeader> getMimeHeaders() {
    final Iterator<? extends Header> ih = part.getAllHeaders()
            .iterator();
    return new Iterator<MimeHeader>() {
        @Override
        public boolean hasNext() {
            return ih.hasNext();
        }

        @Override
        public MimeHeader next() {
            final Header hdr = ih.next();
            return new AttachmentEx.MimeHeader() {
                @Override
                public String getValue() {
                    return hdr.getValue();
                }
                @Override
                public String getName() {
                    return hdr.getName();
                }
            };
        }

        @Override
        public void remove() {
            throw new UnsupportedOperationException();
        }
    };
}
 

import com.sun.xml.internal.ws.api.message.AttachmentEx; //导入依赖的package包/类
private void writeCustomMimeHeaders(Attachment att, OutputStream out) throws IOException {
    if (att instanceof AttachmentEx) {
        Iterator<AttachmentEx.MimeHeader> allMimeHeaders = ((AttachmentEx) att).getMimeHeaders();
        while (allMimeHeaders.hasNext()) {
            AttachmentEx.MimeHeader mh = allMimeHeaders.next();
            String name = mh.getName();

            if (!"Content-Type".equalsIgnoreCase(name) && !"Content-Id".equalsIgnoreCase(name)) {
                writeln(name +": " + mh.getValue(), out);
            }
        }
    }
}