diff --git a/aws/version.go b/aws/version.go
index 11457ac..97a3f57 100755
--- a/aws/version.go
+++ b/aws/version.go
@@ -5,4 +5,4 @@ package aws
 const SDKName = "aws-sdk-go"
 
 // SDKVersion is the version of this SDK
-const SDKVersion = "1.2.3"
+const SDKVersion = "1.2.5"
diff --git a/internal/protocol/rest/payload.go b/internal/protocol/rest/payload.go
index e4e865e..c4ce64a 100755
--- a/internal/protocol/rest/payload.go
+++ b/internal/protocol/rest/payload.go
@@ -38,6 +38,9 @@ func PayloadType(i interface{}) string {
 	}
 	if field, ok := v.Type().FieldByName("SDKShapeTraits"); ok {
 		if payloadName := field.Tag.Get("payload"); payloadName != "" {
+			if payloadName == "GetBucketCORSInput" {
+				return field.Tag.Get("type")
+			}
 			if member, ok := v.Type().FieldByName(payloadName); ok {
 				return member.Tag.Get("type")
 			}
diff --git a/internal/protocol/restxml/restxml.go b/internal/protocol/restxml/restxml.go
index b0f1689..ecf912a 100755
--- a/internal/protocol/restxml/restxml.go
+++ b/internal/protocol/restxml/restxml.go
@@ -14,6 +14,7 @@ import (
 	"github.com/ks3sdklib/aws-sdk-go/internal/protocol/query"
 	"github.com/ks3sdklib/aws-sdk-go/internal/protocol/rest"
 	"github.com/ks3sdklib/aws-sdk-go/internal/protocol/xml/xmlutil"
+	"io/ioutil"
 )
 
 // Build builds a request payload for the REST XML protocol.
@@ -39,15 +40,38 @@ func Build(r *aws.Request) {
 func Unmarshal(r *aws.Request) {
 	if t := rest.PayloadType(r.Data); t == "structure" || t == "" {
 		defer r.HTTPResponse.Body.Close()
-		decoder := xml.NewDecoder(r.HTTPResponse.Body)
-		err := xmlutil.UnmarshalXML(r.Data, decoder, "")
+		data, err := ioutil.ReadAll(r.HTTPResponse.Body)
+		if err != nil {
+			r.Error = apierr.New("ReadBody", "failed to read response body", err)
+			return
+		}
+		decoder := xml.NewDecoder(bytes.NewReader(data))
+		err = xmlutil.UnmarshalXML(r.Data, decoder, "")
 		if err != nil {
 			r.Error = apierr.New("Unmarshal", "failed to decode REST XML response", err)
 			return
 		}
+		return
 	}
 }
 
+type GetBucketCORSOutput struct {
+	CORSConfiguration *CORSConfiguration `xml:"CORSConfiguration"`
+	Metadata          map[string]*string `xml:"-"`
+}
+
+type CORSConfiguration struct {
+	Rules []*CORSRule `xml:"CORSRule"`
+}
+
+type CORSRule struct {
+	AllowedHeader []string `xml:"AllowedHeader"`
+	AllowedMethod []string `xml:"AllowedMethod"`
+	AllowedOrigin []string `xml:"AllowedOrigin"`
+	ExposeHeader  []string `xml:"ExposeHeader"`
+	MaxAgeSeconds int      `xml:"MaxAgeSeconds"`
+}
+
 // UnmarshalMeta unmarshals response headers for the REST XML protocol.
 func UnmarshalMeta(r *aws.Request) {
 	rest.Unmarshal(r)
diff --git a/service/s3/cors.go b/service/s3/cors.go
index d3d01d9..c95563d 100644
--- a/service/s3/cors.go
+++ b/service/s3/cors.go
@@ -31,6 +31,9 @@ func (c *S3) GetBucketCORSRequest(input *GetBucketCORSInput) (req *aws.Request,
 func (c *S3) GetBucketCORS(input *GetBucketCORSInput) (*GetBucketCORSOutput, error) {
 	req, out := c.GetBucketCORSRequest(input)
 	err := req.Send()
+	if req.Data != nil {
+		out = req.Data.(*GetBucketCORSOutput)
+	}
 	return out, err
 }
 
@@ -114,16 +117,6 @@ type metadataPutBucketCORSInput struct {
 	AutoFillMD5    bool
 }
 
-type PutBucketCORSOutput struct {
-	metadataPutBucketCORSOutput `json:"-" xml:"-"`
-
-	Metadata map[string]*string `location:"headers"  type:"map"`
-}
-
-type metadataPutBucketCORSOutput struct {
-	SDKShapeTraits bool `type:"structure"`
-}
-
 type GetBucketCORSInput struct {
 	Bucket *string `location:"uri" locationName:"Bucket" type:"string" required:"true"`
 
@@ -137,19 +130,34 @@ type metadataInput struct {
 }
 
 type GetBucketCORSOutput struct {
-	CORSRules     []*CORSRule `locationName:"CORSRule" type:"list" flattened:"true"`
-	metadataInput `json:"-" xml:"-"`
-	Metadata      map[string]*string `location:"headers"  type:"map"`
+	Metadata map[string]*string `location:"headers"  type:"map"`
+	Rules    []*GetCORSRule     `locationName:"CORSRule" type:"list" flattened:"true" xml:"CORSRule"`
+}
+type GetCORSRule struct {
+	AllowedHeader []*string `locationName:"AllowedHeader" type:"list" flattened:"true" `
+	AllowedMethod []*string `locationName:"AllowedMethod" type:"list" flattened:"true"`
+	AllowedOrigin []*string `locationName:"AllowedOrigin" type:"list" flattened:"true"`
+	ExposeHeader  []*string `locationName:"ExposeHeader" type:"list" flattened:"true"`
+	MaxAgeSeconds *int64    `locationName:"MaxAgeSeconds" flattened:"true"` // Max cache ages in seconds
 }
-
 type CORSConfiguration struct {
-	Rules []*CORSRule `locationName:"CORSRule" type:"list" flattened:"true"` // CORS rules
+	Rules []*CORSRule `locationName:"CORSRule" type:"list" flattened:"true" xml:"CORSRule"`
+}
+
+type PutBucketCORSOutput struct {
+	metadataPutBucketCORSOutput `json:"-" xml:"-"`
+
+	Metadata map[string]*string `location:"headers"  type:"map"`
+}
+
+type metadataPutBucketCORSOutput struct {
+	SDKShapeTraits bool `type:"structure"`
 }
 
 type CORSRule struct {
-	AllowedHeader []string `locationName:"AllowedHeader" type:"list" flattened:"true" `
+	AllowedHeader []string `locationName:"AllowedHeader" type:"list" flattened:"true"`
 	AllowedMethod []string `locationName:"AllowedMethod" type:"list" flattened:"true"`
 	AllowedOrigin []string `locationName:"AllowedOrigin" type:"list" flattened:"true"`
 	ExposeHeader  []string `locationName:"ExposeHeader" type:"list" flattened:"true"`
-	MaxAgeSeconds int      `locationName:"MaxAgeSeconds" flattened:"true"` // Max cache ages in seconds
+	MaxAgeSeconds int64    `locationName:"MaxAgeSeconds" flattened:"true"` // Max cache ages in seconds
 }
diff --git a/test/bucketsample_test.go b/test/bucketsample_test.go
index 60c3aa9..89542c8 100644
--- a/test/bucketsample_test.go
+++ b/test/bucketsample_test.go
@@ -104,7 +104,7 @@ func (s *Ks3utilCommandSuite) TestDeleteBucketLifeRules(c *C) {
 }
 
 //设置bucket cors
-func (s *Ks3utilCommandSuite) TestSetBucketCors() {
+func (s *Ks3utilCommandSuite) TestSetBucketCors(c *C) {
 
 	// 配置CORS规则
 	corsConfiguration := &s3.CORSConfiguration{
@@ -138,6 +138,8 @@ func (s *Ks3utilCommandSuite) TestGetBucketCors(c *C) {
 	})
 	fmt.Println("结果：\n", awsutil.StringValue(resp), err)
 }
+
+//删除bucket cors
 func (s *Ks3utilCommandSuite) TestDeleteBucketCors(c *C) {
 	resp, err := client.DeleteBucketCORS(&s3.DeleteBucketCORSInput{
 		Bucket: aws.String(bucket),