修改文件目录

common/middleware/db.go

@@ -0,0 +1,17 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
+)
+
+func WithContextDb(dbMap map[string]*gorm.DB) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if db, ok := dbMap["*"]; ok {
+			c.Set("db", db)
+		} else {
+			c.Set("db", dbMap[c.Request.Host])
+		}
+		c.Next()
+	}
+}