I have no problem sending attachements to .NET client.
I have a RPC web service (I guess it works for other web service style), and here is the methodologie:
Let's assume you have a web service supposed to send some attachments, the idea is to add the attachment to the SOAP message before the web service method returns on the server side (please note the following is using AXIS 1.1, but it is almost the same with the latest version of AXIS, the AXIS API has changed a bit).
1- get the response message from the message context:
//... org.apache.axis.MessageContext msgContext= org.apache.axis.MessageContext.getCurrentContext();
org.apache.axis.Message rspMsg= msgContext.getResponseMessage();
2 - Set the attachment type to be sent as DIME
rspMsg.getAttachmentsImpl().setSendType(org.apache.axis.attachments.Attachments.SEND_TYPE_DIME);
3- Let's assume you want to send a file
java.io.File fileToAddAsAttachment = new java.io.File("<the path to your
file>");4- Add the file to attachment of the response message
javax.activation.DataHandler dh=new javax.activation.DataHandler(new
javax.activation.FileDataSource(fileToAddAsAttachment));
org.apache.axis.attachments.AttachmentPart part = new
org.apache.axis.attachments.AttachmentPart(dh);
rspMsg.addAttachmentPart(part);5- Return your method
The drawback with that is I haven't figured out how to declare (with java2wsdl) the attachment in the WSDL so you have to document your web service or inform your clients they have to expect some attachments when they call your method.
On the .NET client side, the method is the following:
1- Call the web service method
2- Just after the previous call returned, get the SOAP Response message context
SoapContext rspContext = service.ResponseSoapContext;3- Get the DIME attachements, loop on them and write in a file what you find
there:
DimeAttachmentCollection attachments = rspContext.Attachments;
for (int i=0; i<attachments.Count; i++)
{
Stream str = attachments[i].Stream;
FileStream fs = new FileStream("<the file name where you want to save
the attachment>",FileMode.Create,FileAccess.Write);
((MemoryStream)str).WriteTo(fs);
str.Close();
fs.Close();
}That's all, that works perfectly for me ... hope it helps.
Cheers, Patrick.
Vy Ho wrote:
All of the reples make no sense whatsover to me.
The original poster makes a very clear question that how to send attachments using soap way that works with many environments. For example, Axis and .Net.
To rephrase this, I would say how to create a Wsdl that works with both axis and .net. Currently, using the DataHandler in the wsdl (or generating the wsdl from java code with DataHandler) would not work with other environment. I haven't tried this, but looking at the definition of DataHandler (package name), and its namespace in the wsdl, you can tell it comes from apache, not some Soap standard, unless Apache is the official standard used for attachment.
It's funny to read a bunch of replies that have little answer value to the original question.
