前三个点位所有功能已调通

internal/middleware/log.go

@@ -0,0 +1,15 @@
+package middleware
+
+import (
+	"game-driver/leaf"
+	"log"
+)
+
+func RunLog() leaf.HandlerFunc {
+	return func(c *leaf.Context) {
+		log.Printf("收到消息, topic: %s, payload: %s", c.Topic, c.Payload)
+		defer log.Println("执行结束")
+
+		c.Next()
+	}
+}