{"id":1486,"date":"2023-03-24T22:44:50","date_gmt":"2023-03-24T14:44:50","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1486"},"modified":"2023-04-28T20:30:46","modified_gmt":"2023-04-28T12:30:46","slug":"rocketmq-producer","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/24\/rocketmq-producer\/","title":{"rendered":"RocketMQ\u4e4bProducer"},"content":{"rendered":"

Producer \u4ecb\u7ecd<\/h2>\n

\u6d88\u606f\u53d1\u9001\u7684\u6b65\u9aa4<\/h3>\n

<\/p>\n

1) \u8bbe\u7f6e Producer \u7684 GroupName (Producer Group\u662f\u4e00\u7c7b Producer \u7684\u96c6\u5408)\n2) \u8bbe\u7f6e InstanceName\uff0c\u5f53\u4e00\u4e2a JVM \u9700\u8981\u542f\u52a8\u591a\u4e2a Producer \u65f6\uff0c\u9700\u8981\u6307\u5b9a\u4e0d\u540c\u7684 InstanceName \u6765\u533a\u5206\uff0c\u4e0d\u663e\u5f0f\u8bbe\u7f6e\u65f6\u4f7f\u7528\u9ed8\u8ba4\u540d\u79f0 "DEFAULT"\n3) \u8bbe\u7f6e\u53d1\u9001\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\uff0c\u9ed8\u8ba4\u503c\u662f2\u6b21\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u91cd\u590d\u6d88\u606f\uff0c\u56e0\u6b64\u9700\u8981\u6d88\u8d39\u7aef\u8fdb\u884c\u63a7\u5236\n4) \u8bbe\u7f6e NameServer \u5730\u5740\n5) \u7ec4\u88c5\u6570\u636e\u5e76\u53d1\u9001<\/code><\/pre>\n
\u751f\u4ea7\u8005\u6838\u5fc3\u53c2\u6570<\/h3>\n
* producerGroup: \u751f\u4ea7\u8005\u7ec4\u540d\n* createTopicKey: \u521b\u5efa Topic\uff0c\u751f\u4ea7\u73af\u5883\u4e00\u822c\u4e0d\u76f4\u63a5\u4ece\u4ee3\u7801\u5c42\u9762\u521b\u5efa\u800c\u662f\u5728\u63a7\u5236\u53f0\u521b\u5efa\n* defaultTopicQueueNums: \u6bcf\u4e2a Topic \u4e0b\u7684\u961f\u5217\u6570\u91cf\uff0c\u9ed8\u8ba4\u6570\u91cf\u662f4\n* sendMsgTimeout: \u6d88\u606f\u53d1\u9001\u8d85\u65f6\u65f6\u95f4\uff0c\u5355\u4f4dms\n* compressMsgBodyOverHowmuch: \u5f53\u6d88\u606f\u5927\u5c0f\u8d85\u8fc7\u6307\u5b9a\u5b57\u8282\u5c31\u4f1a\u5f00\u542f\u538b\u7f29\uff0c\u9ed8\u8ba4\u5b57\u8282\u4e3a4096\n* retryTimesWhenSendFailed: \u540c\u6b65\u6a21\u5f0f\u4e0b\uff0c\u6d88\u606f\u53d1\u9001\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\uff0c\u9ed8\u8ba42\u6b21\n* retryTimesWhenSendAsyncFailed: \u5f02\u6b65\u6a21\u5f0f\u4e0b\uff0c\u6d88\u606f\u53d1\u9001\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\uff0c\u9ed8\u8ba42\u6b21\n* retryAnotherBrokerWhenNotStoreOK: \u5f53 broker \u63a5\u6536\u5931\u8d25\u65f6\uff0c\u662f\u5426\u5207\u6362\u53e6\u4e00\u4e2a broker\uff0c\u9ed8\u8ba4\u4e3a false\n* maxMessageSize: \u6700\u5927\u7684\u6d88\u606f\u5bb9\u91cf\u9650\u5236\uff0c\u9ed8\u8ba4\u662f4M<\/code><\/pre>\n
\u4e0d\u540c\u7c7b\u578b\u7684\u751f\u4ea7\u8005<\/h2>\n
\u751f\u4ea7\u8005\u5411\u6d88\u606f\u961f\u5217\u4e2d\u5199\u5165\u6d88\u606f\uff0c\u6839\u636e\u4e0d\u540c\u7684\u4e1a\u52a1\u573a\u666f\u9700\u8981\u91c7\u7528\u4e0d\u540c\u7684\u5199\u5165\u7b56\u7565\uff0c\u5982\u540c\u6b65\u53d1\u9001\u3001\u5f02\u6b65\u53d1\u9001\u3001\u5ef6\u8fdf\u53d1\u9001\u548c\u53d1\u9001\u4e8b\u52a1\u6d88\u606f\u7b49\u3002<\/p>\n
\u540c\u6b65\u53d1\u9001<\/h3>\n
public class Producer {\n\n    public static void main(String[] args) throws MQClientException, RemotingException,\n            InterruptedException, MQBrokerException {\n        \/\/ \u521b\u5efa\u751f\u4ea7\u8005\u5bf9\u8c61\n        DefaultMQProducer producer = new DefaultMQProducer("producerGroupName");\n        \/\/ \u8bbe\u7f6e\u5b9e\u4f8b\u5316\u540d\u79f0\n        producer.setInstanceName("SyncProducer");\n        \/\/ \u6307\u5b9a\u540c\u6b65\u6a21\u5f0f\u4e0b\uff0c\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\n        producer.setRetryTimesWhenSendFailed(5);\n        \/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\n        producer.setNamesrvAddr(RocketMQConfig.NAME_SERVER);\n        \/\/ \u542f\u52a8\u5b9e\u4f8b\n        producer.start();\n        \/\/ \u5b9e\u4f8b\u5316\u6d88\u606f\u5bf9\u8c61\n        Message message = new Message("topicTest", "tagA", "\u540c\u6b65\u6d88\u606f\u53d1\u9001".getBytes());\n        \/\/ \u540c\u6b65\u53d1\u9001\u6d88\u606f\n        SendResult sendResult = producer.send(message);\n        System.out.printf("%s%n", sendResult);\n        \/\/ \u5173\u95ed\u751f\u4ea7\u8005\n        producer.shutdown();\n    }\n}<\/code><\/pre>\n
\u5f02\u6b65\u53d1\u9001<\/h3>\n
public class Producer {\n\n    public static void main(String[] args) throws MQClientException, RemotingException,\n            InterruptedException, MQBrokerException {\n        \/\/ \u521b\u5efa\u751f\u4ea7\u8005\u5bf9\u8c61\n        DefaultMQProducer producer = new DefaultMQProducer("producerGroupName");\n        \/\/ \u8bbe\u7f6e\u5b9e\u4f8b\u5316\u540d\u79f0\n        producer.setInstanceName("AsyncProducer");\n        \/\/ \u6307\u5b9a\u5f02\u6b65\u6a21\u5f0f\u4e0b\uff0c\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\n        producer.setRetryTimesWhenSendAsyncFailed(5);\n        \/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\n        producer.setNamesrvAddr(RocketMQConfig.NAME_SERVER);\n        \/\/ \u542f\u52a8\u5b9e\u4f8b\n        producer.start();\n        \/\/ \u5b9e\u4f8b\u5316\u6d88\u606f\u5bf9\u8c61\n        Message message = new Message("topicTest", "tagA", "\u5f02\u6b65\u6d88\u606f\u53d1\u9001".getBytes());\n        \/\/ \u5f02\u6b65\u53d1\u9001\u6d88\u606f\n        producer.send(message, new SendCallback() {\n            @Override\n            public void onSuccess(SendResult sendResult) {\n                System.out.printf("%s%n", sendResult);\n                \/\/ \u5173\u95ed\u751f\u4ea7\u8005\n                producer.shutdown();\n            }\n\n            @Override\n            public void onException(Throwable e) {\n                e.printStackTrace();\n            }\n        });\n    }\n}<\/code><\/pre>\n
\u5ef6\u8fdf\u53d1\u9001<\/h3>\n
RocketMQ\u652f\u6301\u53d1\u9001\u5ef6\u8fdf\u6d88\u606f\uff0cBroker\u5728\u6536\u5230\u8fd9\u7c7b\u6d88\u606f\u540e\uff0c\u4f1a\u5ef6\u8fdf\u4e00\u6bb5\u65f6\u95f4\u518d\u5904\u7406\uff0c\u4f7f\u6d88\u606f\u5728\u89c4\u5b9a\u7684\u4e00\u6bb5\u65f6\u95f4\u540e\u751f\u6548\u3002<\/p>\n
\u5ef6\u8fdf\u6d88\u606f\u7684\u4f7f\u7528\u65b9\u6cd5\u662f\u5728\u521b\u5efa Message \u5bf9\u8c61\u65f6\uff0c\u8c03\u7528setDelayTimeLevel(int level)<\/code>\u65b9\u6cd5\u8bbe\u7f6e\u5ef6\u8fdf\u65f6\u95f4\u3002\u76ee\u524d\u4e0d\u652f\u6301\u81ea\u5b9a\u4e49\u65f6\u95f4\uff0c\u53ea\u80fd\u4f7f\u7528\u9884\u5b9a\u4e49\u7684\u65f6\u95f4\u957f\u5ea6\uff0c\u5982setDelayTimeLevel(3)<\/code>\u8868\u793a\u5ef6\u8fdf10s\u3002<\/p>\n
public class Producer {\n\n    public static void main(String[] args) throws MQClientException, RemotingException,\n            InterruptedException, MQBrokerException {\n        \/\/ \u521b\u5efa\u751f\u4ea7\u8005\u5bf9\u8c61\n        DefaultMQProducer producer = new DefaultMQProducer("producerGroupName");\n        \/\/ \u8bbe\u7f6e\u5b9e\u4f8b\u5316\u540d\u79f0\n        producer.setInstanceName("SyncProducer");\n        \/\/ \u6307\u5b9a\u540c\u6b65\u6a21\u5f0f\u4e0b\uff0c\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\n        producer.setRetryTimesWhenSendFailed(5);\n        \/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\n        producer.setNamesrvAddr(RocketMQConfig.NAME_SERVER);\n        \/\/ \u542f\u52a8\u5b9e\u4f8b\n        producer.start();\n        \/\/ \u5b9e\u4f8b\u5316\u6d88\u606f\u5bf9\u8c61\n        Message message = new Message("topicTest", "tagA", "\u5ef6\u8fdf\u6d88\u606f\u53d1\u9001".getBytes());\n        \/\/ \u8bbe\u7f6e\u5ef6\u8fdf\u65f6\u95f4,\u65f6\u95f4\u957f\u5ea6\u4e3a(1s\/5s\/10s\/30s\/1m\/2m\/3m\/4m\/5m\/6m\/7m\/8m\/9m\/10m\/20m\/30m\/1h\/2h)\n        message.setDelayTimeLevel(3);\n        \/\/ \u53d1\u9001\u6d88\u606f\n        SendResult sendResult = producer.send(message);\n        System.out.printf("%s%n", sendResult);\n        \/\/ \u5173\u95ed\u5b9e\u4f8b\n        producer.shutdown();\n    }\n}<\/code><\/pre>\n
\u81ea\u5b9a\u4e49\u53d1\u9001\u89c4\u5219<\/h3>\n
\u4e00\u4e2a Topic \u4f1a\u6709\u591a\u4e2aMessage Queue<\/code>\uff0c Producer \u7684\u9ed8\u8ba4\u914d\u7f6e\u4f1a\u8f6e\u6d41\u5411\u5404\u4e2aMessage Queue<\/code>\u53d1\u9001\u6d88\u606f\u3002Consumer \u5728\u6d88\u8d39\u6d88\u606f\u65f6\uff0c\u4f1a\u6839\u636e\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\uff0c\u6d88\u8d39\u88ab\u5206\u914d\u5230\u7684Message Queue<\/code>\u3002\u5982\u679c\u8981\u628a\u6d88\u606f\u53d1\u9001\u5230\u6307\u5b9a\u7684Message Queue<\/code>\uff0c\u53ef\u4ee5\u4f7f\u7528Message-QueueSelector<\/code>\u3002<\/p>\n
public class MyMessageQueueSelector implements MessageQueueSelector {\n    @Override\n    public MessageQueue select(List<MessageQueue> mqs, Message msg, Object key) {\\\n        \/\/ \u81ea\u5b9a\u4e49\u9009\u62e9 Message Queue \u89c4\u5219\n        int id = Integer.parseInt(key.toString());\n        int idMainIndex = id \/ 100;\n        int size = mqs.size();\n        int index = idMainIndex % size;\n        return mqs.get(index);\n    }\n}<\/code><\/pre>\n
\u5728\u53d1\u9001\u6d88\u606f\u7684\u65f6\u5019\uff0c\u5c06MessageQueueSelector<\/code>\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u5373\u53ef\u3002<\/p>\n
public class Producer {\n\n    public static void main(String[] args) throws MQClientException, RemotingException,\n            InterruptedException, MQBrokerException {\n        \/\/ \u521b\u5efa\u751f\u4ea7\u8005\u5bf9\u8c61\n        DefaultMQProducer producer = new DefaultMQProducer("producerGroupName");\n        \/\/ \u8bbe\u7f6e\u5b9e\u4f8b\u5316\u540d\u79f0\n        producer.setInstanceName("SyncProducer");\n        \/\/ \u6307\u5b9a\u540c\u6b65\u6a21\u5f0f\u4e0b\uff0c\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\n        producer.setRetryTimesWhenSendFailed(5);\n        \/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\n        producer.setNamesrvAddr(RocketMQConfig.NAME_SERVER);\n        \/\/ \u542f\u52a8\u5b9e\u4f8b\n        producer.start();\n        \/\/ \u5b9e\u4f8b\u5316\u6d88\u606f\u5bf9\u8c61\n        Message message = new Message("topicTest", "tagA", "\u81ea\u5b9a\u4e49\u6d88\u606f\u53d1\u9001".getBytes());\n        \/\/ \u53d1\u9001\u6d88\u606f\n        SendResult sendResult = producer.send(message, new MyMessageQueueSelector(), 1000);\n        System.out.printf("%s%n", sendResult);\n        \/\/ \u5173\u95ed\u5b9e\u4f8b\n        producer.shutdown();\n    }\n}    <\/code><\/pre>\n
\u4e8b\u52a1\u6d88\u606f<\/h3>\n
RocketMQ\u4e8b\u52a1\u6d88\u606f\u6d41\u7a0b<\/h4>\n
\u5f53\u67d0\u51e0\u4ef6\u4e8b\u9700\u8981\u540c\u65f6\u6210\u529f\u6216\u5931\u8d25\u7684\u65f6\u5019\uff0c\u5c31\u9700\u8981\u4f7f\u7528\u5230\u4e8b\u52a1\u529f\u80fd\uff0c\u5982\u94f6\u884c\u8f6c\u8d26\uff1aA \u94f6\u884c\u7684\u67d0\u8d26\u6237\u8981\u8f6c\u4e00\u4e07\u5143\u5230 B \u94f6\u884c\u7684\u67d0\u8d26\u6237<\/p>\n
1) \u4ece A \u8d26\u6237\u6263\u9664\u4e00\u4e07\u5143\n2) \u5bf9 B \u8d26\u6237\u589e\u52a0\u4e00\u4e07\u5143<\/code><\/pre>\n
\u8fd9\u4e24\u4e2a\u64cd\u4f5c\u9700\u8981\u540c\u65f6\u6210\u529f\u6216\u540c\u65f6\u5931\u8d25\uff0cRocketMQ \u91c7\u7528\u4e24\u9636\u6bb5\u63d0\u4ea4\u7684\u65b9\u5f0f\u5b9e\u73b0\u4e8b\u52a1\u6d88\u606f\uff0cTransactionMqRroducer<\/code>\u5904\u7406\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n
\"RocketMQ_Transaction\"<\/p>\n
1) \u53d1\u9001\u65b9\u5411 RocketMQ \u53d1\u9001 "\u5f85\u786e\u8ba4" \u6d88\u606f\n2) RocketMQ \u5c06\u6536\u5230\u7684 "\u5f85\u786e\u8ba4" \u6d88\u606f\u6301\u4e45\u5316\u6210\u529f\u540e\uff0c\u5411\u53d1\u9001\u65b9\u56de\u590d\u6d88\u606f\u5df2\u7ecf\u53d1\u9001\u6210\u529f\uff0c\u6b64\u65f6\u7b2c\u4e00\u9636\u6bb5\u6d88\u606f\u53d1\u9001\u5b8c\u6210\n3) \u53d1\u9001\u53d1\u5f00\u59cb\u6267\u884c\u672c\u5730\u4e8b\u4ef6\u903b\u8f91\n4) \u53d1\u9001\u65b9\u6839\u636e\u672c\u5730\u4e8b\u4ef6\u6267\u884c\u7ed3\u679c\u5411 RocketMQ \u53d1\u9001\u4e8c\u6b21\u786e\u8ba4(Commit \u6216 Rollback) \u6d88\u606f\uff1a\n    * \u63a5\u6536\u5230 commit \u6d88\u606f\uff0c\u5c06\u628a\u7b2c\u4e00\u9636\u6bb5\u6d88\u606f\u6807\u8bb0\u4e3a\u53ef\u6295\u9012\uff0c\u8ba2\u9605\u65b9\u5c06\u4f1a\u6536\u5230\u8be5\u6d88\u606f\n    * \u63a5\u6536\u5230 rollback \u6d88\u606f\uff0c\u5c06\u5220\u9664\u7b2c\u4e00\u9636\u6bb5\u6d88\u606f\uff0c\u8ba2\u9605\u65b9\u4e0d\u4f1a\u63a5\u53d7\u5230\u8be5\u6d88\u606f\n5) \u5982\u679c\u51fa\u73b0\u5f02\u5e38\u60c5\u51b5\uff0c\u6b65\u9aa44 \u63d0\u4ea4\u7684\u4e8c\u6b21\u786e\u8ba4\u6700\u7ec8\u672a\u5230\u8fbe RocketMQ\uff0c\u670d\u52a1\u5668\u5c06\u7ecf\u8fc7\u56fa\u5b9a\u65f6\u95f4\u6bb5\u540e\u5c06\u5bf9 "\u5f85\u786e\u8ba4" \u6d88\u606f\u53d1\u8d77\u56de\u67e5\u8bf7\u6c42\n6) \u53d1\u9001\u65b9\u6536\u5230\u6d88\u606f\u56de\u4f20\u8bf7\u6c42\u540e(\u5982\u679c\u7b2c\u4e00\u9636\u6bb5\u53d1\u9001\u7684 Producer \u4e0d\u80fd\u5de5\u4f5c\u65f6\uff0c\u5c06\u4f1a\u56de\u4f20\u7ed9\u540c\u4e00\u4e2a ProducerGroup \u7684\u5176\u4ed6 Producer)\uff0c\u901a\u8fc7\u5bf9\u68c0\u67e5\u5bf9\u5e94\u6d88\u606f\u7684\u672c\u5730\u4e8b\u4ef6\u6267\u884c\u7ed3\u679c\u8fd4\u56de Commit \u6216 Rollback \u72b6\u6001\n7) RocketMQ \u6536\u5230\u56de\u67e5\u8bf7\u6c42\u540e\uff0c\u6309\u7167\u6b65\u9aa44) \u6d41\u7a0b\u7ee7\u7eed\u5904\u7406<\/code><\/pre>\n
RocketMQ \u901a\u8fc7\u4ee5\u4e0b\u51e0\u4e2a\u7c7b\u6765\u652f\u6301\u7528\u6237\u5b9e\u73b0\u4e8b\u52a1\u6d88\u606f\uff1a<\/p>\n
    \n
  • TransactionMQProducer<\/code><\/li>\n<\/ul>\n
    \u548cDefaultMQProducer<\/code>\u7528\u6237\u7c7b\u4f3c\uff0c\u901a\u8fc7\u5b83\u542f\u52a8\u4e8b\u52a1\u6d88\u606f\uff0c\u76f8\u6bd4DefaultMQProducer<\/code>\u9700\u8981\u591a\u8bbe\u7f6e\u672c\u5730\u4e8b\u52a1\u5904\u7406\u51fd\u6570\u548c\u56de\u67e5\u72b6\u6001\u51fd\u6570<\/p>\n
      \n
    • TransactionListener<\/code><\/li>\n<\/ul>\n
      \u63d0\u4f9b\u672c\u5730\u6267\u884c\u65b9\u6cd5\u548c\u56de\u67e5\u65b9\u6cd5\uff0c\u8fd4\u56deLocalTransactionState<\/code>\u72b6\u6001\u6807\u8bc6\uff1a<\/p>\n
      * LocalTransactionState.COMMIT_MESSAGE: \u63d0\u4ea4\n* LocalTransactionState.ROLLBACK_MESSAGE: \u56de\u6eda\n* LocalTransactionState.UNKNOW: \u672a\u77e5\uff0c\u9700\u8981\u56de\u67e5<\/code><\/pre>\n
      RocketMQ\u4e8b\u52a1\u6d88\u606f\u5b9e\u73b0<\/h4>\n
      \u5b9e\u73b0 TransactionListener \u63a5\u53e3<\/p>\n
      public class MyTransactionListener implements TransactionListener {\n\n    private AtomicInteger transactionIndex = new AtomicInteger(0);\n    private AtomicInteger checkTimes = new AtomicInteger(0);\n\n    private ConcurrentHashMap<String, Integer> localTrans = new ConcurrentHashMap<>();\n\n    \/\/ \u6267\u884c\u672c\u5730\u4e8b\u52a1\n    @Override\n    public LocalTransactionState executeLocalTransaction(Message msg, Object arg) {\n        String msgKey = msg.getKeys();\n        System.out.println("start execute local transaction " + msgKey);\n        LocalTransactionState state;\n        if (msgKey.contains("1")) {\n            \/\/ \u7b2c\u4e00\u6761\u6d88\u606f\u8ba9\u4ed6\u901a\u8fc7\n            state = LocalTransactionState.COMMIT_MESSAGE;\n        } else if (msgKey.contains("2")) {\n            \/\/ \u7b2c\u4e8c\u6761\u6d88\u606f\u6a21\u62df\u5f02\u5e38\uff0c\u660e\u786e\u56de\u590d\u56de\u6eda\u64cd\u4f5c\n            state = LocalTransactionState.ROLLBACK_MESSAGE;\n        } else {\n            \/\/ \u7b2c\u4e09\u6761\u6d88\u606f\u65e0\u54cd\u5e94\uff0c\u8ba9\u5b83\u8c03\u7528\u56de\u67e5\u4e8b\u52a1\u65b9\u6cd5\n            state = LocalTransactionState.UNKNOW;\n            \/\/ \u7ed9\u5269\u4e0b3\u6761\u6d88\u606f\uff0c\u653e1\uff0c2\uff0c3\u4e09\u79cd\u72b6\u6001\n            localTrans.put(msgKey, transactionIndex.incrementAndGet());\n        }\n        System.out.println("executeLocalTransaction:" + msg.getKeys() + ",execute state:" + state + ",current time\uff1a" + System.currentTimeMillis());\n        return state;\n    }\n\n    \/\/ \u68c0\u67e5\u672c\u5730\u4e8b\u52a1\u7ed3\u679c\n    @Override\n    public LocalTransactionState checkLocalTransaction(MessageExt msg) {\n        String msgKey = msg.getKeys();\n        System.out.println("start check local transaction " + msgKey);\n        Integer state = localTrans.get(msgKey);\n        switch (state) {\n            case 1:\n                System.out.println("check result unknown \u56de\u67e5\u6b21\u6570" + checkTimes.incrementAndGet());\n                return LocalTransactionState.UNKNOW;\n            case 2:\n                System.out.println("check result commit message, \u56de\u67e5\u6b21\u6570" + checkTimes.incrementAndGet());\n                return LocalTransactionState.COMMIT_MESSAGE;\n            case 3:\n                System.out.println("check result rollback message, \u56de\u67e5\u6b21\u6570" + checkTimes.incrementAndGet());\n                return LocalTransactionState.ROLLBACK_MESSAGE;\n            default:\n                return LocalTransactionState.COMMIT_MESSAGE;\n        }\n    }\n}<\/code><\/pre>\n
      \u5b9e\u73b0\u4e8b\u52a1\u6d88\u606f\u751f\u4ea7\u8005<\/p>\n
      public class Producer {\n\n    public static void main(String[] args) throws MQClientException, RemotingException,\n            InterruptedException, MQBrokerException {\n        \/\/ \u521b\u5efa\u4e8b\u52a1\u751f\u4ea7\u8005\u5bf9\u8c61\n        TransactionMQProducer producer = new TransactionMQProducer("producerGroupName");\n        \/\/ \u8bbe\u7f6e\u5b9e\u4f8b\u5316\u540d\u79f0\n        producer.setInstanceName("SyncProducer");\n        \/\/ \u6307\u5b9a\u540c\u6b65\u6a21\u5f0f\u4e0b,\u5931\u8d25\u91cd\u8bd5\u6b21\u6570\n        producer.setRetryTimesWhenSendFailed(5);\n        \/\/ \u8bbe\u7f6e\u4e8b\u52a1\u76d1\u542c\u5668\n        producer.setTransactionListener(new MyTransactionListener());\n        \/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740\n        producer.setNamesrvAddr(RocketMQConfig.NAME_SERVER);\n\n        \/\/ \u542f\u52a8\u5b9e\u4f8b\n        producer.start();\n        for (int i = 0; i < 5; i++) {\n            \/\/ \u5b9e\u4f8b\u5316\u6d88\u606f\u5bf9\u8c61\n            Message message = new Message("topicTest", "tagA", "msg-" + i, ("\u4e8b\u52a1\u6d88\u606f\u53d1\u9001" + ":" + i).getBytes());\n            \/\/ \u53d1\u9001\u6d88\u606f\n            SendResult sendResult = producer.sendMessageInTransaction(message, i);\n            System.out.printf("%s%n", sendResult);\n        }\n\n        \/\/ \u5173\u95ed\u5b9e\u4f8b\n        \/\/ producer.shutdown();\n    }\n\n}<\/code><\/pre>\n
      \u6d88\u606f\u8fd4\u56de\u72b6\u6001<\/h2>\n
      \u83b7\u53d6\u6d88\u606f\u53d1\u9001\u8fd4\u56de\u72b6\u6001\u5bf9\u8c61<\/h3>\n
      \/\/ \u83b7\u53d6\u53d1\u9001\u6d88\u606f\u7ed3\u679c\nSendResult sendResult = producer.send(message);\n\/\/ \u4ece\u7ed3\u679c\u4e2d\u83b7\u53d6\u72b6\u6001\u5bf9\u8c61\nSendStatus sendStatus = sendResult.getSendStatus();<\/code><\/pre>\n
      \u72b6\u6001\u503c<\/h3>\n
      public enum SendStatus {\n    \/\/ \u8868\u793a\u53d1\u9001\u6210\u529f\n    SEND_OK,\n    \/\/ \u8868\u793a\u6ca1\u6709\u5728\u6307\u5b9a\u65f6\u95f4\u5185\u5b8c\u6210\u5237\u76d8(\u9700\u8981 Broker \u7684\u5237\u76d8\u7b56\u7565\u88ab\u8bbe\u7f6e\u6210SYNC_FLUSH)\n    FLUSH_DISK_TIMEOUT,\n    \/\/ \u8868\u793a\u5728\u4e3b\u5907\u6a21\u5f0f\u4e0b\uff0c\u5e76\u4e14 Broker \u88ab\u8bbe\u7f6e\u6210SYNC_MASTER\uff0c\u6ca1\u6709\u5728\u6307\u5b9a\u65f6\u95f4\u5185\u5b8c\u6210\u4e3b\u4ece\u540c\u6b65\n    FLUSH_SLAVE_TIMEOUT,\n    \/\/ \u8868\u793a\u5728\u4e3b\u5907\u6a21\u5f0f\u4e0b\uff0c\u5e76\u4e14 Broker \u88ab\u8bbe\u7f6e\u6210SYNC_MASTER\uff0c\u6ca1\u6709\u627e\u5230\u88ab\u914d\u7f6e\u6210 Slave \u7684 Broker\n    SLAVE_NOT_AVAILABLE,\n}<\/code><\/pre>\n
      \u6ce8\uff1a\u5f53\u8fd4\u56de\u72b6\u6001\u4e0d\u662fSEND_OK<\/code>\u65f6\uff0c\u90fd\u9700\u8981\u6709\u8865\u507f\u673a\u5236<\/p>\n","protected":false},"excerpt":{"rendered":"
      Producer \u4ecb\u7ecd \u6d88\u606f\u53d1\u9001\u7684\u6b65\u9aa4 1) \u8bbe\u7f6e Producer \u7684 GroupName (Produce […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-1486","post","type-post","status-publish","format-standard","hentry","category-rocketmq"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1486"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1486\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}