{"id":215,"date":"2026-07-23T09:51:22","date_gmt":"2026-07-23T01:51:22","guid":{"rendered":"https:\/\/yykcj.com\/?p=215"},"modified":"2026-07-23T09:51:22","modified_gmt":"2026-07-23T01:51:22","slug":"%e5%88%86%e5%b8%83%e5%bc%8f%e4%ba%8b%e5%8a%a1%e5%ae%9e%e6%88%98%ef%bc%9asaga%e3%80%81tcc%e4%b8%8e%e6%9c%80%e7%bb%88%e4%b8%80%e8%87%b4%e6%80%a7%e6%96%b9%e6%a1%88%e6%b7%b1%e5%ba%a6%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/yykcj.com\/?p=215","title":{"rendered":"\u5206\u5e03\u5f0f\u4e8b\u52a1\u5b9e\u6218\uff1aSaga\u3001TCC\u4e0e\u6700\u7ec8\u4e00\u81f4\u6027\u65b9\u6848\u6df1\u5ea6\u89e3\u6790"},"content":{"rendered":"

\u4e3a\u4ec0\u4e48\u9700\u8981\u5206\u5e03\u5f0f\u4e8b\u52a1\uff1f<\/h2>\n

\u5728\u5fae\u670d\u52a1\u67b6\u6784\u4e2d\uff0c\u4e00\u4e2a\u4e1a\u52a1\u64cd\u4f5c\u5f80\u5f80\u6d89\u53ca\u591a\u4e2a\u670d\u52a1\uff0c\u4f8b\u5982\u4e0b\u5355\u9700\u8981\u6263\u5e93\u5b58\u3001\u751f\u6210\u8ba2\u5355\u3001\u6263\u51cf\u8d26\u6237\u4f59\u989d\u3002\u5982\u679c\u67d0\u4e2a\u6b65\u9aa4\u5931\u8d25\uff0c\u5982\u4f55\u4fdd\u8bc1\u6570\u636e\u6700\u7ec8\u4e00\u81f4\uff1f\u4f20\u7edf\u6570\u636e\u5e93ACID\u4e8b\u52a1\u65e0\u6cd5\u8de8\u670d\u52a1\uff0c\u56e0\u6b64\u9700\u8981\u5206\u5e03\u5f0f\u4e8b\u52a1\u65b9\u6848\u3002\u672c\u6587\u5c06\u624b\u628a\u624b\u5e26\u4f60\u5b9e\u73b0\u4e09\u79cd\u4e3b\u6d41\u65b9\u6848\uff1aSaga\u3001TCC\u548c\u6700\u7ec8\u4e00\u81f4\u6027\uff08\u57fa\u4e8e\u6d88\u606f\u961f\u5217\uff09\uff0c\u5e76\u5206\u4eab\u8e29\u5751\u7ecf\u9a8c\u3002<\/p>\n

\u573a\u666f\u5b9a\u4e49<\/h2>\n

\u5047\u8bbe\u4e00\u4e2a\u7535\u5546\u4e0b\u5355\u6d41\u7a0b\uff1a<\/p>\n

    \n
  1. \u8ba2\u5355\u670d\u52a1\u521b\u5efa\u8ba2\u5355\uff08\u72b6\u6001\u4e3a\u5f85\u652f\u4ed8\uff09<\/li>\n
  2. \u5e93\u5b58\u670d\u52a1\u6263\u51cf\u5e93\u5b58<\/li>\n
  3. \u8d26\u6237\u670d\u52a1\u6263\u51cf\u4f59\u989d<\/li>\n<\/ol>\n

    \u8981\u6c42\uff1a\u8981\u4e48\u5168\u90e8\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u56de\u6eda\uff08\u6216\u8865\u507f\uff09\u3002<\/p>\n

    \u65b9\u6848\u4e00\uff1aSaga \u6a21\u5f0f\uff08\u57fa\u4e8e\u4e8b\u4ef6\/\u7f16\u6392\uff09<\/h2>\n

    Saga \u5c06\u957f\u4e8b\u52a1\u62c6\u5206\u4e3a\u591a\u4e2a\u672c\u5730\u4e8b\u52a1\uff0c\u6bcf\u4e2a\u672c\u5730\u4e8b\u52a1\u6709\u5bf9\u5e94\u7684\u8865\u507f\u64cd\u4f5c\u3002\u5982\u679c\u67d0\u4e2a\u6b65\u9aa4\u5931\u8d25\uff0c\u5219\u53cd\u5411\u6267\u884c\u8865\u507f\u3002<\/p>\n

    \u5b9e\u73b0\u601d\u8def<\/h3>\n

    \u4f7f\u7528\u4e8b\u4ef6\u7f16\u6392\uff1a\u6bcf\u4e2a\u670d\u52a1\u5b8c\u6210\u540e\u53d1\u5e03\u4e8b\u4ef6\uff0c\u89e6\u53d1\u4e0b\u4e00\u6b65\u3002\u5931\u8d25\u65f6\u53d1\u5e03\u8865\u507f\u4e8b\u4ef6\u3002<\/p>\n

    \u4ee3\u7801\u793a\u4f8b\uff08Node.js + RabbitMQ\uff09<\/h3>\n
    \n\/\/ orchestrator.js - \u7f16\u6392\u5668\nconst amqp = require('amqplib');\n\nasync function startSaga(orderId, productId, userId, amount) {\n  const conn = await amqp.connect('amqp:\/\/localhost');\n  const channel = await conn.createChannel();\n  const exchange = 'saga_exchange';\n  await channel.assertExchange(exchange, 'topic', { durable: true });\n\n  \/\/ \u6b65\u9aa41: \u521b\u5efa\u8ba2\u5355\n  const orderEvent = { orderId, userId, amount, status: 'PENDING' };\n  channel.publish(exchange, 'order.create', Buffer.from(JSON.stringify(orderEvent)));\n  console.log('Order created event published');\n\n  \/\/ \u76d1\u542c\u540e\u7eed\u4e8b\u4ef6...\n  \/\/ \u5b9e\u9645\u5e94\u4f7f\u7528\u6d88\u8d39\u8005\u5904\u7406\u56de\u8c03\uff0c\u6b64\u5904\u7b80\u5316\n}\n\n\/\/ order-service.js - \u8ba2\u5355\u670d\u52a1\u6d88\u8d39\u8005\nchannel.consume('order_queue', async (msg) => {\n  const event = JSON.parse(msg.content.toString());\n  if (event.status === 'PENDING') {\n    \/\/ \u521b\u5efa\u8ba2\u5355\uff08\u672c\u5730\u4e8b\u52a1\uff09\n    await db.insertOrder(event);\n    \/\/ \u53d1\u5e03\u8ba2\u5355\u5df2\u521b\u5efa\u4e8b\u4ef6\n    channel.publish(exchange, 'order.created', Buffer.from(JSON.stringify(event)));\n    channel.ack(msg);\n  } else if (event.status === 'COMPENSATE') {\n    \/\/ \u8865\u507f\uff1a\u53d6\u6d88\u8ba2\u5355\n    await db.updateOrder(event.orderId, { status: 'CANCELLED' });\n    channel.ack(msg);\n  }\n});\n\n\/\/ \u7c7b\u4f3c\u5b9e\u73b0\u5e93\u5b58\u548c\u8d26\u6237\u670d\u52a1\n<\/code><\/pre>\n
    \u4f18\u7f3a\u70b9<\/h3>\n
      \n
    • \u4f18\u70b9<\/strong>\uff1a\u7b80\u5355\uff0c\u6613\u4e8e\u7406\u89e3\uff0c\u9002\u5408\u957f\u4e8b\u52a1<\/li>\n
    • \u7f3a\u70b9<\/strong>\uff1a\u9700\u8981\u5b9e\u73b0\u8865\u507f\u903b\u8f91\uff0c\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e2d\u95f4\u72b6\u6001<\/li>\n<\/ul>\n
      \u65b9\u6848\u4e8c\uff1aTCC \u6a21\u5f0f\uff08Try-Confirm-Cancel\uff09<\/h2>\n
      TCC \u5c06\u6bcf\u4e2a\u670d\u52a1\u64cd\u4f5c\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1aTry\uff08\u9884\u7559\u8d44\u6e90\uff09\u3001Confirm\uff08\u786e\u8ba4\u6267\u884c\uff09\u3001Cancel\uff08\u53d6\u6d88\u91ca\u653e\uff09\u3002<\/p>\n
      \u5b9e\u73b0\u601d\u8def<\/h3>\n
      \u6bcf\u4e2a\u670d\u52a1\u63d0\u4f9b Try\u3001Confirm\u3001Cancel \u4e09\u4e2a\u63a5\u53e3\u3002\u4e8b\u52a1\u7ba1\u7406\u5668\u534f\u8c03\u3002<\/p>\n
      \u4ee3\u7801\u793a\u4f8b\uff08Java + Spring Boot\uff09<\/h3>\n
      \n\/\/ \u8d26\u6237\u670d\u52a1 TCC \u63a5\u53e3\npublic interface AccountTccService {\n    @TwoPhaseBusinessAction(name = "deduct", commitMethod = "confirm", rollbackMethod = "cancel")\n    void tryDeduct(BusinessActionContext context, \n                   @BusinessActionContextParameter("userId") String userId,\n                   @BusinessActionContextParameter("amount") double amount);\n    \n    boolean confirm(BusinessActionContext context);\n    \n    boolean cancel(BusinessActionContext context);\n}\n\n\/\/ \u5b9e\u73b0\n@Service\npublic class AccountTccServiceImpl implements AccountTccService {\n    @Override\n    public void tryDeduct(BusinessActionContext context, String userId, double amount) {\n        \/\/ Try\uff1a\u51bb\u7ed3\u91d1\u989d\n        accountDao.freezeBalance(userId, amount);\n    }\n\n    @Override\n    public boolean confirm(BusinessActionContext context) {\n        \/\/ Confirm\uff1a\u6263\u9664\u51bb\u7ed3\u91d1\u989d\n        String userId = context.getActionContext("userId").toString();\n        double amount = Double.parseDouble(context.getActionContext("amount").toString());\n        accountDao.deductFrozen(userId, amount);\n        return true;\n    }\n\n    @Override\n    public boolean cancel(BusinessActionContext context) {\n        \/\/ Cancel\uff1a\u89e3\u51bb\u91d1\u989d\n        String userId = context.getActionContext("userId").toString();\n        double amount = Double.parseDouble(context.getActionContext("amount").toString());\n        accountDao.unfreezeBalance(userId, amount);\n        return true;\n    }\n}\n<\/code><\/pre>\n
      \u6ce8\u610f\u4e8b\u9879<\/h3>\n
        \n
      • Try \u9636\u6bb5\u5fc5\u987b\u4fdd\u8bc1\u8d44\u6e90\u9884\u7559\u6210\u529f\uff0c\u5426\u5219\u4e0d\u6267\u884c Confirm<\/li>\n
      • Confirm \u548c Cancel \u5fc5\u987b\u5e42\u7b49<\/li>\n
      • \u9700\u8981\u4e8b\u52a1\u7ba1\u7406\u5668\uff08\u5982 Seata\u3001ByteTCC\uff09<\/li>\n<\/ul>\n
        \u65b9\u6848\u4e09\uff1a\u6700\u7ec8\u4e00\u81f4\u6027\uff08\u57fa\u4e8e\u6d88\u606f\u961f\u5217\uff09<\/h2>\n
        \u5229\u7528\u6d88\u606f\u961f\u5217\u5f02\u6b65\u5904\u7406\uff0c\u4fdd\u8bc1\u6700\u7ec8\u4e00\u81f4\u3002\u672c\u5730\u4e8b\u52a1\u548c\u6d88\u606f\u53d1\u9001\u7ed1\u5b9a\uff0c\u901a\u8fc7\u91cd\u8bd5\u548c\u5e42\u7b49\u5b9e\u73b0\u3002<\/p>\n
        \u5b9e\u73b0\u601d\u8def<\/h3>\n
          \n
        • \u8ba2\u5355\u670d\u52a1\u672c\u5730\u4e8b\u52a1\u63d2\u5165\u8ba2\u5355\uff0c\u540c\u65f6\u53d1\u9001\u4e00\u6761\u201c\u6263\u5e93\u5b58\u201d\u6d88\u606f\u5230\u961f\u5217<\/li>\n
        • \u5e93\u5b58\u670d\u52a1\u6d88\u8d39\u6d88\u606f\uff0c\u6267\u884c\u6263\u51cf\uff0c\u6210\u529f\u540e\u53d1\u9001\u201c\u6263\u4f59\u989d\u201d\u6d88\u606f<\/li>\n
        • \u6bcf\u4e2a\u6b65\u9aa4\u5931\u8d25\u5219\u91cd\u8bd5\uff0c\u76f4\u5230\u6210\u529f<\/li>\n<\/ul>\n
          \u4ee3\u7801\u793a\u4f8b\uff08RocketMQ \u4e8b\u52a1\u6d88\u606f\uff09<\/h3>\n
          \n\/\/ \u8ba2\u5355\u670d\u52a1\u53d1\u9001\u534a\u6d88\u606f\nTransactionMQProducer producer = new TransactionMQProducer();\nproducer.setNamesrvAddr("localhost:9876");\nproducer.setTransactionListener(new TransactionListener() {\n    @Override\n    public LocalTransactionState executeLocalTransaction(Message msg, Object arg) {\n        \/\/ \u6267\u884c\u672c\u5730\u4e8b\u52a1\uff08\u521b\u5efa\u8ba2\u5355\uff09\n        Order order = (Order) arg;\n        try {\n            orderDao.insert(order);\n            return LocalTransactionState.COMMIT_MESSAGE;\n        } catch (Exception e) {\n            return LocalTransactionState.ROLLBACK_MESSAGE;\n        }\n    }\n\n    @Override\n    public LocalTransactionState checkLocalTransaction(MessageExt msg) {\n        \/\/ \u56de\u67e5\u8ba2\u5355\u72b6\u6001\n        String orderId = msg.getKeys();\n        Order order = orderDao.selectById(orderId);\n        if (order != null) {\n            return LocalTransactionState.COMMIT_MESSAGE;\n        }\n        return LocalTransactionState.ROLLBACK_MESSAGE;\n    }\n});\nproducer.start();\n\n\/\/ \u53d1\u9001\u534a\u6d88\u606f\nMessage msg = new Message("inventory_topic", "", orderId, "\u6263\u51cf\u5e93\u5b58".getBytes());\nSendResult result = producer.sendMessageInTransaction(msg, order);\n<\/code><\/pre>\n
          \u5e42\u7b49\u6027\u4fdd\u8bc1<\/h3>\n
          \u6d88\u8d39\u8005\u5fc5\u987b\u5b9e\u73b0\u5e42\u7b49\uff08\u4f8b\u5982\u901a\u8fc7\u552f\u4e00\u952e\u53bb\u91cd\uff09\uff1a<\/p>\n
          \n\/\/ \u5e93\u5b58\u670d\u52a1\u6d88\u8d39\n@RocketMQMessageListener(topic = "inventory_topic", consumerGroup = "inventory_group")\npublic class InventoryConsumer implements RocketMQListener<String> {\n    @Override\n    public void onMessage(String message) {\n        String orderId = message;\n        \/\/ \u4f7f\u7528\u8ba2\u5355ID\u4f5c\u4e3a\u5e42\u7b49\u952e\n        if (deduplicationService.isProcessed(orderId)) {\n            return;\n        }\n        \/\/ \u6263\u51cf\u5e93\u5b58\n        inventoryDao.deduct(orderId);\n        deduplicationService.markProcessed(orderId);\n    }\n}\n<\/code><\/pre>\n
          \u5bf9\u6bd4\u4e0e\u9009\u578b\u5efa\u8bae<\/h2>\n
          | \u65b9\u6848 | \u4e00\u81f4\u6027 | \u590d\u6742\u5ea6 | \u6027\u80fd | \u9002\u7528\u573a\u666f | |——|——–|——–|——|———-| | Saga | \u6700\u7ec8\u4e00\u81f4 | \u4e2d | \u9ad8 | \u957f\u4e8b\u52a1\uff0c\u5141\u8bb8\u4e2d\u95f4\u72b6\u6001 | | TCC | \u5f3a\u4e00\u81f4\uff08\u4e24\u9636\u6bb5\uff09 | \u9ad8 | \u4e2d | \u77ed\u4e8b\u52a1\uff0c\u5bf9\u4e00\u81f4\u6027\u8981\u6c42\u9ad8 | | \u6700\u7ec8\u4e00\u81f4\u6027 | \u6700\u7ec8\u4e00\u81f4 | \u4f4e | \u9ad8 | \u5f02\u6b65\u573a\u666f\uff0c\u5bb9\u5fcd\u5ef6\u8fdf |<\/p>\n
          \u6700\u4f73\u5b9e\u8df5<\/strong>\uff1a<\/p>\n
            \n
          • \u4f18\u5148\u8003\u8651\u6700\u7ec8\u4e00\u81f4\u6027\uff0c\u907f\u514d\u5206\u5e03\u5f0f\u4e8b\u52a1<\/li>\n
          • \u5982\u679c\u5fc5\u987b\uff0cSaga \u9002\u5408\u4e1a\u52a1\u6d41\u7a0b\u957f\u3001\u6b65\u9aa4\u591a\u7684\u573a\u666f<\/li>\n
          • TCC \u9002\u5408\u8d44\u91d1\u7c7b\u4e1a\u52a1\uff0c\u4f46\u5b9e\u73b0\u6210\u672c\u9ad8<\/li>\n<\/ul>\n
            \u5e38\u89c1\u5751\u4e0e\u8e29\u5751\u7ecf\u9a8c<\/h2>\n
              \n
            1. Saga \u8865\u507f\u903b\u8f91\u5fc5\u987b\u5e42\u7b49<\/strong>\uff1a\u8865\u507f\u53ef\u80fd\u91cd\u590d\u6267\u884c<\/li>\n
            2. TCC Cancel \u53ef\u80fd\u5931\u8d25<\/strong>\uff1a\u9700\u8981\u91cd\u8bd5\u673a\u5236\uff0c\u4e14 Confirm \u548c Cancel \u5fc5\u987b\u5e42\u7b49<\/li>\n
            3. \u6d88\u606f\u961f\u5217\u987a\u5e8f<\/strong>\uff1a\u4f7f\u7528\u5206\u533a\u4fdd\u8bc1\u540c\u4e00\u8ba2\u5355\u7684\u6d88\u606f\u987a\u5e8f<\/li>\n
            4. \u4e8b\u52a1\u6d88\u606f\u56de\u67e5\u8d85\u65f6<\/strong>\uff1a\u5408\u7406\u8bbe\u7f6e\u56de\u67e5\u95f4\u9694\uff0c\u907f\u514d\u5806\u79ef<\/li>\n<\/ol>\n
              \u603b\u7ed3<\/h2>\n
              \u672c\u6587\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u8be6\u7ec6\u4ecb\u7ecd\u4e86 Saga\u3001TCC \u548c\u6700\u7ec8\u4e00\u81f4\u6027\u4e09\u79cd\u5206\u5e03\u5f0f\u4e8b\u52a1\u65b9\u6848\u3002\u5b9e\u9645\u9879\u76ee\u4e2d\u5efa\u8bae\u4f18\u5148\u4f7f\u7528\u6d88\u606f\u961f\u5217\u5b9e\u73b0\u6700\u7ec8\u4e00\u81f4\u6027\uff0c\u53ea\u6709\u5728\u5f3a\u4e00\u81f4\u9700\u6c42\u4e0b\u624d\u8003\u8651 TCC\u3002\u65e0\u8bba\u54ea\u79cd\u65b9\u6848\uff0c\u5e42\u7b49\u6027\u548c\u8865\u507f\u673a\u5236\u90fd\u662f\u5173\u952e\u3002<\/p>\n
              \u5ef6\u4f38\u9605\u8bfb<\/strong>\uff1a<\/p>\n
                \n
              • Seata \u6846\u67b6\uff1aAT \u6a21\u5f0f\u81ea\u52a8\u8865\u507f<\/li>\n
              • RocketMQ \u4e8b\u52a1\u6d88\u606f\u5b98\u65b9\u6587\u6863<\/li>\n
              • \u5206\u5e03\u5f0f\u4e8b\u52a1\u6a21\u5f0f\uff1aSaga vs TCC vs AT<\/li>\n<\/ul>\n
                \u5e0c\u671b\u672c\u6587\u80fd\u5e2e\u52a9\u4f60\u5728\u9879\u76ee\u4e2d\u6b63\u786e\u9009\u62e9\u5e76\u5b9e\u73b0\u5206\u5e03\u5f0f\u4e8b\u52a1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                \u672c\u6587\u6df1\u5165\u5bf9\u6bd4Saga\u3001TCC\u548c\u6700\u7ec8\u4e00\u81f4\u6027\u4e09\u79cd\u5206\u5e03\u5f0f\u4e8b\u52a1\u65b9\u6848\uff0c\u901a\u8fc7\u771f\u5b9e\u4ee3\u7801\u793a\u4f8b\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u5e2e\u4f60\u7406\u89e3\u539f\u7406\u3001\u638c\u63e1\u5b9e\u73b0\u3001\u907f\u5f00\u5e38\u89c1\u5751\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[81,82,80,55,83,126],"class_list":["post-215","post","type-post","status-publish","format-standard","hentry","category-3","category-4","tag-saga","tag-tcc","tag-80","tag-55","tag-83","tag-126"],"_links":{"self":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts\/215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=215"}],"version-history":[{"count":0,"href":"https:\/\/yykcj.com\/index.php?rest_route=\/wp\/v2\/posts\/215\/revisions"}],"wp:attachment":[{"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yykcj.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}