first commit

mengyaping-backend/utils/id.go

@@ -0,0 +1,31 @@
+package utils
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"time"
+)
+
+// GenerateID 生成唯一ID
+func GenerateID() string {
+	timestamp := time.Now().UnixNano()
+	randomBytes := make([]byte, 4)
+	rand.Read(randomBytes)
+	return hex.EncodeToString([]byte{
+		byte(timestamp >> 56),
+		byte(timestamp >> 48),
+		byte(timestamp >> 40),
+		byte(timestamp >> 32),
+		byte(timestamp >> 24),
+		byte(timestamp >> 16),
+		byte(timestamp >> 8),
+		byte(timestamp),
+	}) + hex.EncodeToString(randomBytes)
+}
+
+// GenerateShortID 生成短ID
+func GenerateShortID() string {
+	randomBytes := make([]byte, 6)
+	rand.Read(randomBytes)
+	return hex.EncodeToString(randomBytes)
+}