我需要更新SOAPMessage内部的AttachmentPart内容,如下图所示。我需要保持标题相同。
是否可以在不创建新的SOAP消息的情况下做到这一点?我正在使用SAAJ API。
最佳答案
您能否使用SOAPMessage.getAttachments()调用返回所有附件部分的迭代器,以将附件拉入新对象,进行必要的修改,然后调用SOAPMessage.removeAllAttachments()函数从原始对象中清除对象消息并调用addAttachmentPart(AttachmentPart)函数以重新添加更改后的对象?
SOAPMessage message = getSoapMessageFromString(foo);
List<AttachmentPart> collectionOfAttachments = new ArrayList<AttachmentPart>();
for (Iterator attachmentIterator = message.getAttachments(); attachmentIterator.hasNext()) {
AttachmentPart attachment = (AttachmentPart) attachmentIterator.next();
//**DO WORK HERE ON attachment**
collectionOfAttachments.add(attachment);
}
message.removeAllAttachments();
for (AttachmentPart newAttachment : collectionOfAttachments) {
message.addAttachmentPart(newAttachment);
}
// This method takes an XML string as input and uses it to create a new
// SOAPMessage object
// and then returns that object for further use.
private static SOAPMessage getSoapMessageFromString(String xml)
throws SOAPException, IOException {
MessageFactory factory = MessageFactory.newInstance();
// Create a new message object with default MIME headers and the data
// from the XML string we passed in
SOAPMessage message = factory
.createMessage(
new MimeHeaders(),
new ByteArrayInputStream(xml.getBytes(Charset
.forName("UTF-8"))));
return message;
}
您希望对附件进行哪种更改?仅将主体保留在DOM对象中并一起创建新的SOAPMessage会更容易吗?