diff --git a/app.go b/app.go
index 7958a85..657c949 100644
--- a/app.go
+++ b/app.go
@@ -37,6 +37,7 @@ type App interface {
 		user string, passwd string, dataBase string)
 	GetOrmDb(string) *gorm.DB
 	RegisterCaHandle(c string, a string, handle GinHandlerFunc)
+	GetPid() int
 }
 
 type UserApp interface {
@@ -372,6 +373,10 @@ func (this *app) getCaHandle(handleName string) GinHandlerFunc {
 	}
 }
 
+func (this *app) GetPid() int {
+	return os.Getpid()
+}
+
 func parseArgs() (int, int) {
 	args := os.Args[1:]
 	if len(args) <= 0 {