diff --git a/db/elasticEngine.go b/db/elasticEngine.go
index 5828e70..499a41a 100644
--- a/db/elasticEngine.go
+++ b/db/elasticEngine.go
@@ -4,6 +4,7 @@ import (
 
 	"github.com/pkg/errors"
 	"gopkg.in/olivere/elastic.v3"
+	"qiniupkg.com/x/log.v7"
 	"reflect"
 )
 const(
@@ -21,21 +22,21 @@ type  ElkEngine struct {
 
 func (p *ElkEngine)Create(index string,types string,id string,data interface{}) (error)  {
 	if nil != p{
-		if (reflect.TypeOf(data).Kind() != reflect.String)  && (reflect.TypeOf(data).Kind() != reflect.Struct){
+		if (reflect.TypeOf(data).Kind() == reflect.String)  || (reflect.TypeOf(data).Kind() == reflect.Struct){
 			resp, err := p.cli.Index().
 				Index(index).
 				Type(types).
-				Id(id).
 				BodyJson(data).
 				Do()
 			if !resp.Created{
 				return errors.New(CREATED_ERROR)
 			}
 			if err != nil {
-				print(err)
+				log.Print(err)
 				return err
 			}
 		}else{
+			log.Print(reflect.TypeOf(data).Kind())
 			return errors.New(INPUT_TYPE_ERROR)
 		}
 	}else{
diff --git a/db/sqlManager.go b/db/sqlManager.go
index 7962bd3..8184528 100644
--- a/db/sqlManager.go
+++ b/db/sqlManager.go
@@ -149,6 +149,5 @@ func InitMongoDb()  {
 	}
 }
 func GetElastic()  *ElkEngine{
-
 	return &gElkEngine
 }
\ No newline at end of file
diff --git a/model/hardware.go b/model/hardware.go
index b217af9..e3c460b 100644
--- a/model/hardware.go
+++ b/model/hardware.go
@@ -4,13 +4,12 @@ import (
 	"background/db"
 	"github.com/pkg/errors"
 	"qiniupkg.com/x/log.v7"
-	"time"
 )
 
 // this api is based on elasticsearch
 type Hardware struct {
 	ID   int32 `json:"id"`
-	BuyDate time.Time `json:"buy_date"`  //购入时间
+	BuyDate string `json:"buy_date"`  //购入时间
 	Name  string `json:"name"`  // 名字
 	Desc string `json:"desc"`  // 描述
 	Pic  string `json:"pic"`  // 图片
@@ -21,7 +20,7 @@ func (this *Hardware )CreateHardware( )  error{
 	if nil == this{
 		return errors.New("null pointer")
 	}
-	e := db.GetElastic().Create("hardware","0","",*this)
+	e := db.GetElastic().Create("hardware","0","sdfasdfasd",*this)
 	if nil != e{
 		log.Print(e.Error())
 		return e