get('source', 'auto'), 'target': data.get('target', 'zh') } @socketio.
1.核心概念：认证与授权 概念含义常见实现认证 (Authentication)验证用户身份：“你是谁？
springframework.stereotype.Component; /** * 死信队列消费者 * * 专门订阅 %DLQ%order-consumer-group，处理所有进入死信的消息 */ @Slf4j @Component @RocketMQMessageListener( topic = "%DLQ%order-consumer-group", // 🔥 死信队列 Topic 命名规则 consumerGroup = "dlq-handler-group", // 🔥 必须使用独立的消费者组 selectorExpression = "*" // 消费所有 Tag ) public class DeadLetterQueueConsumer implements RocketMQListener { private final DlqMessageService dlqMessageService; public DeadLetterQueueConsumer(DlqMessageService dlqMessageService) { this.
7 最终封装 PlannedStmt ├── planTree │ └── Limit → Sort → HashAggregate → HashJoin ├── rtable │ ├── customer │ └── orders ├── permInfos ├── paramExecTypes ├── relationOids ├── invalItems ├── parallelModeNeeded └── jitFlags 8.