package com.aliyun.mns.samples.Queue; import com.aliyun.mns.client.CloudAccount; import com.aliyun.mns.client.CloudQueue; import com.aliyun.mns.client.MNSClient; import com.aliyun.mns.common.ClientException; import com.aliyun.mns.common.ServiceException; import com.aliyun.mns.common.utils.ServiceSettings; import com.aliyun.mns.model.Message; public class ProducerDemo { public static void main(String[] args) { CloudAccount account = new CloudAccount( ServiceSettings.getMNSAccessKeyId(), ServiceSettings.getMNSAccessKeySecret(), ServiceSettings.getMNSAccountEndpoint()); MNSClient client = account.getMNSClient(); //this client need only initialize once // Demo for send message code, send 10 test message try{ CloudQueue queue = client.getQueueRef("cloud-queue-demo");// replace with your queue name for (int i = 0; i < 10; i++) { Message message = new Message(); message.setMessageBody("demo_message_body" + i); // use your own message body here Message putMsg = queue.putMessage(message); System.out.println("Send message id is: " + putMsg.getMessageId()); } } catch (ClientException ce) { System.out.println("Something wrong with the network connection between client and MNS service." + "Please check your network and DNS availablity."); ce.printStackTrace(); } catch (ServiceException se) { if (se.getErrorCode().equals("QueueNotExist")) { System.out.println("Queue is not exist.Please create before use"); } else if (se.getErrorCode().equals("TimeExpired")) { System.out.println("The request is time expired. Please check your local machine timeclock"); } /* you can get more MNS service error code from following link: https://help.aliyun.com/document_detail/mns/api_reference/error_code/error_code.html?spm=5176.docmns/api_reference/error_code/error_response */ se.printStackTrace(); } catch (Exception e) { System.out.println("Unknown exception happened!"); e.printStackTrace(); } client.close(); } }