feat: refactor go.mod.

registry/servicecomb/client.go

@@ -1,16 +1,20 @@
 package servicecomb
 
 import (
+	servicecombKratos "github.com/go-kratos/kratos/contrib/registry/servicecomb/v2"
 	"github.com/go-kratos/kratos/v2/log"
 
 	servicecombClient "github.com/go-chassis/sc-client"
-	servicecombKratos "github.com/go-kratos/kratos/contrib/registry/servicecomb/v2"
 
 	conf "github.com/tx7do/kratos-bootstrap/api/gen/go/conf/v1"
 )
 
 // NewRegistry 创建一个注册发现客户端 - Servicecomb
 func NewRegistry(c *conf.Registry) *servicecombKratos.Registry {
+	if c == nil || c.Servicecomb == nil {
+		return nil
+	}
+
 	cfg := servicecombClient.Options{
 		Endpoints: c.Servicecomb.Endpoints,
 	}