{"id":2163,"date":"2023-04-02T13:37:45","date_gmt":"2023-04-02T05:37:45","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=2163"},"modified":"2023-04-05T13:14:45","modified_gmt":"2023-04-05T05:14:45","slug":"rocketmq-transaction-message","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/02\/rocketmq-transaction-message\/","title":{"rendered":"RocketMQ\u8be6\u89e3\u2014\u2014RocketMQ\u4e8b\u52a1\u6d88\u606f"},"content":{"rendered":"<p>\u4e8b\u52a1\u6d88\u606f\u662fRocketMQ\u63d0\u4f9b\u7684\u975e\u5e38\u91cd\u8981\u7684\u4e00\u4e2a\u7279\u6027\uff0c\u57284.x\u7248\u672c\u4e4b\u540e\u5f00\u6e90\uff0c\u53ef\u4ee5\u5229\u7528\u4e8b\u52a1\u6d88\u606f\u8f7b\u677e\u5730\u5b9e\u73b0\u5206\u5e03\u5f0f\u4e8b\u52a1\u3002\u672c\u6587\u5bf9RocketMQ\u7684\u4e8b\u52a1\u6d88\u606f\u8fdb\u884c\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5e76\u7ed9\u51fa\u4e86\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<h2>\u76f8\u5173\u6982\u5ff5<\/h2>\n<p><!-- more --><\/p>\n<p>RocketMQ\u5728\u5176\u6d88\u606f\u5b9a\u4e49\u7684\u57fa\u7840\u4e0a\uff0c\u5bf9\u4e8b\u52a1\u6d88\u606f\u6269\u5c55\u4e86\u4e24\u4e2a\u76f8\u5173\u7684\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li><code>Half(Prepare) Message<\/code>\u2014\u2014\u534a\u6d88\u606f(\u9884\u5904\u7406\u6d88\u606f)<\/li>\n<\/ul>\n<p>\u534a\u6d88\u606f\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u6d88\u606f\u7c7b\u578b\uff0c\u8be5\u72b6\u6001\u7684\u6d88\u606f\u6682\u65f6\u4e0d\u80fd\u88abConsumer\u6d88\u8d39\u3002\u5f53\u4e00\u6761\u4e8b\u52a1\u6d88\u606f\u88ab\u6210\u529f\u6295\u9012\u5230Broker\u4e0a\uff0c\u4f46\u662fBroker\u5e76\u6ca1\u6709\u63a5\u6536\u5230Producer\u53d1\u51fa\u7684\u4e8c\u6b21\u786e\u8ba4\u65f6\uff0c\u8be5\u4e8b\u52a1\u6d88\u606f\u5c31\u5904\u4e8e&quot;\u6682\u65f6\u4e0d\u53ef\u88ab\u6d88\u8d39&quot;\u72b6\u6001\uff0c\u8be5\u72b6\u6001\u7684\u4e8b\u52a1\u6d88\u606f\u88ab\u79f0\u4e3a\u534a\u6d88\u606f\u3002<\/p>\n<ul>\n<li><code>Message Status Check<\/code>\u2014\u2014\u6d88\u606f\u72b6\u6001\u56de\u67e5<\/li>\n<\/ul>\n<p>\u7531\u4e8e\u7f51\u7edc\u6296\u52a8\u3001Producer\u91cd\u542f\u7b49\u539f\u56e0\uff0c\u53ef\u80fd\u5bfc\u81f4Producer\u5411Broker\u53d1\u9001\u7684\u4e8c\u6b21\u786e\u8ba4\u6d88\u606f\u6ca1\u6709\u6210\u529f\u9001\u8fbe\u3002\u5982\u679cBroker\u68c0\u6d4b\u5230\u67d0\u6761\u4e8b\u52a1\u6d88\u606f\u957f\u65f6\u95f4\u5904\u4e8e\u534a\u6d88\u606f\u72b6\u6001\uff0c\u5219\u4f1a\u4e3b\u52a8\u5411Producer\u7aef\u53d1\u8d77\u56de\u67e5\u64cd\u4f5c\uff0c\u67e5\u8be2\u8be5\u4e8b\u52a1\u6d88\u606f\u5728Producer\u7aef\u7684\u4e8b\u52a1\u72b6\u6001(Commit \u6216 Rollback)\u3002\u53ef\u4ee5\u770b\u51fa\uff0cMessage Status Check\u4e3b\u8981\u7528\u6765\u89e3\u51b3\u5206\u5e03\u5f0f\u4e8b\u52a1\u4e2d\u7684\u8d85\u65f6\u95ee\u9898\u3002<\/p>\n<h2>\u6267\u884c\u6d41\u7a0b<\/h2>\n<p><img decoding=\"async\" src=\"http:\/\/www.yezhou.me\/AppBlog\/images\/Java\/RocketMQ\u4e8b\u52a1\u6d88\u606f\u6267\u884c\u6d41\u7a0b.png\" alt=\"RocketMQ\u4e8b\u52a1\u6d88\u606f\u6267\u884c\u6d41\u7a0b\" \/><\/p>\n<p>\u4e0a\u9762\u662f\u5b98\u7f51\u63d0\u4f9b\u7684\u4e8b\u52a1\u6d88\u606f\u6267\u884c\u6d41\u7a0b\u56fe\uff0c\u4e0b\u9762\u5bf9\u5177\u4f53\u6d41\u7a0b\u8fdb\u884c\u5206\u6790\uff1a<\/p>\n<ul>\n<li>Step1\uff1aProducer\u5411Broker\u7aef\u53d1\u9001Half Message<\/li>\n<li>Step2\uff1aBroker ACK\uff0cHalf Message\u53d1\u9001\u6210\u529f<\/li>\n<li>Step3\uff1aProducer\u6267\u884c\u672c\u5730\u4e8b\u52a1<\/li>\n<li>Step4\uff1a\u672c\u5730\u4e8b\u52a1\u5b8c\u6bd5\uff0c\u6839\u636e\u4e8b\u52a1\u7684\u72b6\u6001\uff0cProducer\u5411Broker\u53d1\u9001\u4e8c\u6b21\u786e\u8ba4\u6d88\u606f\uff0c\u786e\u8ba4\u8be5Half Message\u7684Commit\u6216\u8005Rollback\u72b6\u6001\u3002Broker\u6536\u5230\u4e8c\u6b21\u786e\u8ba4\u6d88\u606f\u540e\uff0c\u5bf9\u4e8eCommit\u72b6\u6001\uff0c\u5219\u76f4\u63a5\u53d1\u9001\u5230Consumer\u7aef\u6267\u884c\u6d88\u8d39\u903b\u8f91\uff0c\u800c\u5bf9\u4e8eRollback\u5219\u76f4\u63a5\u6807\u8bb0\u4e3a\u5931\u8d25\uff0c\u4e00\u6bb5\u65f6\u95f4\u540e\u6e05\u9664\uff0c\u5e76\u4e0d\u4f1a\u53d1\u7ed9Consumer\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5230\u6b64\u5206\u5e03\u5f0f\u4e8b\u52a1\u5df2\u7ecf\u5b8c\u6210\uff0c\u5269\u4e0b\u8981\u5904\u7406\u7684\u5c31\u662f\u8d85\u65f6\u95ee\u9898\uff0c\u5373\u4e00\u6bb5\u65f6\u95f4\u540eBroker\u4ecd\u6ca1\u6709\u6536\u5230Producer\u7684\u4e8c\u6b21\u786e\u8ba4\u6d88\u606f<\/li>\n<li>Step5\uff1a\u9488\u5bf9\u8d85\u65f6\u72b6\u6001\uff0cBroker\u4e3b\u52a8\u5411Producer\u53d1\u8d77\u6d88\u606f\u56de\u67e5<\/li>\n<li>Step6\uff1aProducer\u5904\u7406\u56de\u67e5\u6d88\u606f\uff0c\u8fd4\u56de\u5bf9\u5e94\u7684\u672c\u5730\u4e8b\u52a1\u7684\u6267\u884c\u7ed3\u679c<\/li>\n<li>Step7\uff1aBroker\u9488\u5bf9\u56de\u67e5\u6d88\u606f\u7684\u7ed3\u679c\uff0c\u6267\u884cCommit\u6216Rollback\u64cd\u4f5c\uff0c\u540cStep4<\/li>\n<\/ul>\n<h2>\u4ee3\u7801\u5b9e\u4f8b<\/h2>\n<p>\u672c\u8282\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u573a\u666f\u6a21\u62dfRocketMQ\u7684\u4e8b\u52a1\u6d88\u606f\uff1a\u5b58\u57282\u4e2a\u5fae\u670d\u52a1\uff0c\u5206\u522b\u662f\u8ba2\u5355\u670d\u52a1\u548c\u5546\u54c1\u670d\u52a1\u3002\u8ba2\u5355\u670d\u52a1\u8fdb\u884c\u4e0b\u5355\u5904\u7406\uff0c\u5e76\u53d1\u9001\u6d88\u606f\u7ed9\u5546\u54c1\u670d\u52a1\uff0c\u5bf9\u4e8e\u4e0b\u5355\u6210\u529f\u7684\u5546\u54c1\u8fdb\u884c\u51cf\u5e93\u5b58\u3002<\/p>\n<p>\u9996\u5148\u662f\u8ba2\u5355\u670d\u52a1\uff1a<\/p>\n<pre><code class=\"language-java\">\/**\n * \u4f7f\u7528RocketMQ\u4e8b\u52a1\u6d88\u606f\u2014\u2014\u8ba2\u5355\u670d\u52a1\u53d1\u9001\u4e8b\u52a1\u6d88\u606f,\u7136\u540e\u8fdb\u884c\u672c\u5730\u4e0b\u5355,\u5e76\u901a\u77e5\u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58\n *\/\npublic class OrderService {\n  public static void main(String[] args) throws Exception {\n    TransactionMQProducer producer = new TransactionMQProducer();\n    producer.setNamesrvAddr(RocketMQConstants.NAMESRV_ADDR);\n    producer.setProducerGroup(RocketMQConstants.TRANSACTION_PRODUCER_GROUP);\n\n    \/\/\u81ea\u5b9a\u4e49\u7ebf\u7a0b\u6c60,\u6267\u884c\u4e8b\u52a1\u64cd\u4f5c\n    ThreadPoolExecutor executor = new ThreadPoolExecutor(10, 50, 10L, TimeUnit.SECONDS, new ArrayBlockingQueue&lt;&gt;(20), (Runnable r) -&gt; new Thread(&quot;Order Transaction Massage Thread&quot;));\n    producer.setExecutorService(executor);\n\n    \/\/\u8bbe\u7f6e\u4e8b\u52a1\u6d88\u606f\u76d1\u542c\u5668\n    producer.setTransactionListener(new OrderTransactionListener());\n\n    producer.start();\n\n    System.err.println(&quot;OrderService Start&quot;);\n\n    for (int i = 0;i &lt; 10;i++){\n      String orderId = UUID.randomUUID().toString();\n      String payload = &quot;\u4e0b\u5355,orderId: &quot; + orderId;\n      String tags = &quot;Tag&quot;;\n      Message message = new Message(RocketMQConstants.TRANSACTION_TOPIC_NAME, tags, orderId, payload.getBytes(RemotingHelper.DEFAULT_CHARSET));\n\n      \/\/\u53d1\u9001\u4e8b\u52a1\u6d88\u606f\n      TransactionSendResult result = producer.sendMessageInTransaction(message, orderId);\n      System.err.println(&quot;\u53d1\u9001\u4e8b\u52a1\u6d88\u606f,\u53d1\u9001\u7ed3\u679c: &quot; + result);\n    }\n  }\n}<\/code><\/pre>\n<p>\u4e8b\u52a1\u6d88\u606f\u9700\u8981\u4e00\u4e2aTransactionListener\uff0c\u4e3b\u8981\u8fdb\u884c\u672c\u5730\u4e8b\u52a1\u7684\u6267\u884c\u548c\u4e8b\u52a1\u56de\u67e5\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-java\">\/**\n * \u8ba2\u5355\u4e8b\u52a1\u6d88\u606f\u76d1\u542c\u5668\n *\/\npublic class OrderTransactionListener implements TransactionListener {\n  private static final Map&lt;String, Boolean&gt; results = new ConcurrentHashMap&lt;&gt;();\n\n  @Override\n  public LocalTransactionState executeLocalTransaction(Message msg, Object arg) {\n    String orderId = (String) arg;\n\n    \/\/\u8bb0\u5f55\u672c\u5730\u4e8b\u52a1\u6267\u884c\u7ed3\u679c\n    boolean success = persistTransactionResult(orderId);\n    System.err.println(&quot;\u8ba2\u5355\u670d\u52a1\u6267\u884c\u672c\u5730\u4e8b\u52a1\u4e0b\u5355,orderId: &quot; + orderId + &quot;, result: &quot; + success);\n    return success ? LocalTransactionState.COMMIT_MESSAGE : LocalTransactionState.ROLLBACK_MESSAGE;\n  }\n\n  @Override\n  public LocalTransactionState checkLocalTransaction(MessageExt msg) {\n    String orderId = msg.getKeys();\n    System.err.println(&quot;\u6267\u884c\u4e8b\u52a1\u6d88\u606f\u56de\u67e5,orderId: &quot; + orderId);\n    return Boolean.TRUE.equals(results.get(orderId)) ? LocalTransactionState.COMMIT_MESSAGE : LocalTransactionState.ROLLBACK_MESSAGE;\n  }\n\n  private boolean persistTransactionResult(String orderId) {\n    boolean success = Math.abs(Objects.hash(orderId)) % 2 == 0;\n    results.put(orderId, success);\n    return success;\n  }\n}<\/code><\/pre>\n<p>\u4e0b\u9762\u662f\u5546\u54c1\u670d\u52a1\u53ca\u76d1\u542c\u5668\uff1a<\/p>\n<pre><code class=\"language-java\">\/**\n * \u4f7f\u7528RocketMQ\u4e8b\u52a1\u6d88\u606f\u2014\u2014\u5546\u54c1\u670d\u52a1\u63a5\u6536\u4e0b\u5355\u7684\u4e8b\u52a1\u6d88\u606f,\u5982\u679c\u6d88\u606f\u6210\u529fcommit\u5219\u672c\u5730\u51cf\u5e93\u5b58\n *\/\npublic class ProductService {\n  public static void main(String[] args) throws Exception {\n    DefaultMQPushConsumer consumer = new DefaultMQPushConsumer();\n    consumer.setNamesrvAddr(RocketMQConstants.NAMESRV_ADDR);\n    consumer.setConsumerGroup(RocketMQConstants.TRANSACTION_CONSUMER_GROUP);\n    consumer.subscribe(RocketMQConstants.TRANSACTION_TOPIC_NAME, &quot;*&quot;);\n    consumer.registerMessageListener(new ProductListener());\n    consumer.start();\n    System.err.println(&quot;ProductService Start&quot;);\n  }\n}<\/code><\/pre>\n<pre><code class=\"language-java\">public class ProductListener implements MessageListenerConcurrently {\n  @Override\n  public ConsumeConcurrentlyStatus consumeMessage(List&lt;MessageExt&gt; msgs, ConsumeConcurrentlyContext context) {\n    Optional.ofNullable(msgs).orElse(Collections.emptyList()).forEach(m -&gt; {\n      String orderId = m.getKeys();\n      System.err.println(&quot;\u76d1\u542c\u5230\u4e0b\u5355\u6d88\u606f,orderId: &quot; + orderId + &quot;, \u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58&quot;);\n    });\n    return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;\n  }\n}<\/code><\/pre>\n<p>\u5206\u522b\u8fd0\u884c<code>OrderService<\/code>\u548c<code>ProductService<\/code>\uff0c\u53ef\u4ee5\u770b\u51fa\u53ea\u6709\u4e8b\u52a1\u6267\u884c\u6210\u529f\u7684\u8ba2\u5355\u624d\u4f1a\u901a\u77e5\u5546\u54c1\u670d\u52a1\u8fdb\u884c\u51cf\u5e93\u5b58<\/p>\n<pre><code>\u76d1\u542c\u5230\u4e0b\u5355\u6d88\u606f,orderId: f25a7127-307e-45ce-8f83-6e0a922ebb94, \u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58\n\u76d1\u542c\u5230\u4e0b\u5355\u6d88\u606f,orderId: d960171d-97c0-4e13-aa4a-c2b96102de4b, \u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58\n\u76d1\u542c\u5230\u4e0b\u5355\u6d88\u606f,orderId: 63aedaa2-ce74-4cb7-bf58-fb6a73082a73, \u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58\n\u76d1\u542c\u5230\u4e0b\u5355\u6d88\u606f,orderId: 25764461-70b2-44db-8296-960211179e6e, \u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58\n\u76d1\u542c\u5230\u4e0b\u5355\u6d88\u606f,orderId: fb319fe7-c8be-4edf-ae4e-6108898068ca, \u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58\n\u76d1\u542c\u5230\u4e0b\u5355\u6d88\u606f,orderId: 4f61a61a-7254-458a-bc10-9d4006a9f581, \u5546\u54c1\u670d\u52a1\u51cf\u5e93\u5b58<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4e8b\u52a1\u6d88\u606f\u662fRocketMQ\u63d0\u4f9b\u7684\u975e\u5e38\u91cd\u8981\u7684\u4e00\u4e2a\u7279\u6027\uff0c\u57284.x\u7248\u672c\u4e4b\u540e\u5f00\u6e90\uff0c\u53ef\u4ee5\u5229\u7528\u4e8b\u52a1\u6d88\u606f\u8f7b\u677e\u5730\u5b9e\u73b0\u5206\u5e03\u5f0f\u4e8b\u52a1 [&hellip;]<\/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-2163","post","type-post","status-publish","format-standard","hentry","category-rocketmq"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2163","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=2163"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2163\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}