Setting Content-Type when posting a SOAPMessage

Question

Hi,
I have to change the Content-Type header before I send the SOAPMessage. But when I try to do that with code similar to the one below, the old header is used anyway. Any solution?
SOAPMessage msg = createSOAPMessage();
MimeHeaders headers = msg.getMimeHeaders();
headers.setHeader("Content-Type", headers.getHeader("Content-Type")[0] + additionalParameters);
SOAPConnectionFactory scf = SOAPConnectionFactory.newInstance();
SOAPConnection con = scf.createConnection();
SOAPMessage reply = con.call(msg, "http://localhost:8080");

Answer 1

I've found that when calling the saveChanges() method on a SOAPMessage instance that doesn't have any attachments, the 'Content-Type' header is set to 'text/xml; charset="utf-8"'. So what you should do is that you should be sure to set the 'Content-Type' header after any possible changes to the message have been saved.
SOAPMessage msg = createSOAPMessage();// Modify message by adding elements...
// Save the changes made to the message and then
// change the "Content-Type" header...
if (msg.saveRequired()) {
msg.saveChanges();
MimeHeaders headers = msg.getMimeHeaders();
headers.setHeader("Content-Type",
headers.getHeader("Content-Type")[0] +
additionalParameters);
SOAPConnectionFactory scf =
SOAPConnectionFactory.newInstance();
SOAPConnection con = scf.createConnection();
SOAPMessage reply = con.call(msg,
"http://localhost:8080");
Hope this helps!
BR
Daniel