RESTful client example using Apache Jersey: POST call

OpenstackCloudDriver.java

String serverBootResponse =
		service.path(this.pathPrefix + "servers")
		.header("Content-Type", "application/json")
		.header("X-Auth-Token", token)
		.accept(MediaType.APPLICATION_XML)
		.post(String.class, json);

final DocumentBuilder documentBuilder = createDocumentBuilder();
final Document doc = 
	documentBuilder.parse(new InputSource(new StringReader(serverBootResponse)));

final String serverId = xpath.evaluate("/server/@id", doc);
return serverId;