Node xnProtocol = (Node) xpath.evaluate("Commmunication/Protocol", serviceNode, XPathConstants.NODE);
if(xnProtocol == null){
printExceprion(2,serviceName);
}
config.protocol = new ProtocolProfile(xnProtocol);
/**
* 加载授权文件key
*/
Node xnKey = (Node) xpath.evaluate("Secure/Key", serviceNode, XPathConstants.NODE);