How to change "SOAP-ENV" default prefix of Spring-WS

I use SAAJ. Try this.

1. soapEnvelope.removeNamespaceDeclaration("SOAP-ENV");
2. soapEnvelope.addNamespaceDeclaration("soapenv", "http://schemas.xmlsoap.org/soap/envelope/");
3. soapEnvelope.setPrefix("soapenv");
4. soapHeader.setPrefix("soapenv");
5. soapBody.setPrefix("soapenv");

Don't forget: soapMessage.saveChanges();

Reference:Changing the default XML namespace prefix generated with JAXWS

A better solution

Use SOAPMessage API instead of DOM.

  private void alterSoapEnvelope(SaajSoapMessage soapResponse) {
    try {
      SOAPMessage soapMessage = soapResponse.getSaajMessage();
      SOAPPart soapPart = soapMessage.getSOAPPart();
      SOAPEnvelope envelope = soapPart.getEnvelope();
      SOAPHeader header = soapMessage.getSOAPHeader();
      SOAPBody body = soapMessage.getSOAPBody();
      SOAPFault fault = body.getFault();
      envelope.removeNamespaceDeclaration(envelope.getPrefix());
      envelope.addNamespaceDeclaration(PREFERRED_PREFIX, SOAP_ENV_NAMESPACE);
      envelope.setPrefix(PREFERRED_PREFIX);
      header.setPrefix(PREFERRED_PREFIX);
      body.setPrefix(PREFERRED_PREFIX);
      if (fault != null) {
        fault.setPrefix(PREFERRED_PREFIX);
      }
    } catch (SOAPException e) {
      e.printStackTrace();
    }
  }

It's much faster now.