Client的POST

String url = "http://192.168.6.166:8089/fdcps_mobileReceipt/unSubscribe/createReceipt";
Client client = ClientBuilder.newClient();
Response httpResponse = client
		.target(url)
		.request(MediaType.APPLICATION_JSON)
		.post(Entity.entity(params, MediaType.APPLICATION_JSON)); //params参数
String result = httpResponse.readEntity(String.class);
return result;