Handle nil pointer dereference panic after db connect fail

server/initialize/mysql.go

@@ -4,13 +4,15 @@ import (
 	"gin-vue-admin/global"
 	"github.com/jinzhu/gorm"
 	_ "github.com/jinzhu/gorm/dialects/mysql"
+	"os"
 )
 
 //初始化数据库并产生数据库全局变量
 func Mysql() {
 	admin := global.GVA_CONFIG.Mysql
 	if db, err := gorm.Open("mysql", admin.Username+":"+admin.Password+"@("+admin.Path+")/"+admin.Dbname+"?"+admin.Config); err != nil {
-		global.GVA_LOG.Error("DEFAULTDB数据库启动异常", err)
+		global.GVA_LOG.Error("MySQL启动异常", err)
+		os.Exit(0)
 	} else {
 		global.GVA_DB = db
 		global.GVA_DB.DB().SetMaxIdleConns(admin.MaxIdleConns)