diff --git a/middleware/alibaba/space.go b/middleware/alibaba/space.go
index 715669c..15117ce 100644
--- a/middleware/alibaba/space.go
+++ b/middleware/alibaba/space.go
@@ -16,6 +16,11 @@ import (
 	"github.com/alibabacloud-go/tea/tea"
 )
 
+const (
+	DIA_SPACEID  = "28879119988"
+	DIA_DENTRYID = "221784566389"
+)
+
 func CreateSpace() (_err error) {
 	client, _err := CreateStorageClientV1()
 	if _err != nil {
@@ -150,7 +155,7 @@ func GetMaxFileVersion(version int, nextToken string) int {
 		MaxResults: tea.Int32(30),
 		UnionId:    tea.String(UNIONID),
 	}
-	resp, _err := client.ListDentryVersionsWithOptions(tea.String("28057154815"), tea.String("206700372014"), listDentryVersionsRequest, listDentryVersionsHeaders, &util.RuntimeOptions{})
+	resp, _err := client.ListDentryVersionsWithOptions(tea.String(DIA_SPACEID), tea.String(DIA_DENTRYID), listDentryVersionsRequest, listDentryVersionsHeaders, &util.RuntimeOptions{})
 	if resp.Body.Dentries != nil {
 		return int(*resp.Body.Dentries[0].Version)
 	}
@@ -169,7 +174,7 @@ func GetFileInfo() error {
 	listDentriesHeaders := &dingtalkstorage_1_0.ListDentriesHeaders{}
 	listDentriesHeaders.XAcsDingtalkAccessToken = tea.String(token)
 	listDentriesRequest := &dingtalkstorage_1_0.ListDentriesRequest{
-		ParentId:      tea.String("0"),
+		ParentId:      tea.String("221787406507"),
 		NextToken:     tea.String(""),
 		MaxResults:    tea.Int32(30),
 		OrderBy:       tea.String("MODIFIED_TIME"),
@@ -177,7 +182,7 @@ func GetFileInfo() error {
 		WithThumbnail: tea.Bool(false),
 		UnionId:       tea.String(UNIONID),
 	}
-	resp, _err := client.ListDentriesWithOptions(tea.String("28057154815"), listDentriesRequest, listDentriesHeaders, &util.RuntimeOptions{})
+	resp, _err := client.ListDentriesWithOptions(tea.String(DIA_SPACEID), listDentriesRequest, listDentriesHeaders, &util.RuntimeOptions{})
 	fmt.Println(resp)
 	return _err
 }
@@ -202,7 +207,7 @@ func DownloadFile() error {
 		UnionId: tea.String("YWjeT8Ltk2mUOP82QyMe0AiEiE"),
 		Option:  option,
 	}
-	resp, _err := client.GetFileDownloadInfoWithOptions(tea.String("28057154815"), tea.String("206700372014"), getFileDownloadInfoRequest, getFileDownloadInfoHeaders, &util.RuntimeOptions{})
+	resp, _err := client.GetFileDownloadInfoWithOptions(tea.String(DIA_SPACEID), tea.String(DIA_DENTRYID), getFileDownloadInfoRequest, getFileDownloadInfoHeaders, &util.RuntimeOptions{})
 	responseBody := resp.Body
 	downloadUrl := responseBody.HeaderSignatureInfo.ResourceUrls[0]
 	header := map[string]string{
diff --git a/middleware/alibaba/space_test.go b/middleware/alibaba/space_test.go
new file mode 100644
index 0000000..7ddf9b3
--- /dev/null
+++ b/middleware/alibaba/space_test.go
@@ -0,0 +1,23 @@
+package alibaba
+
+import (
+	"testing"
+)
+
+func TestGetFileInfo(t *testing.T) {
+	if err := GetFileInfo(); err != nil {
+		t.Fatalf("GetFileInfo failed: %v", err)
+	}
+}
+
+func TestSearchSpaceId(t *testing.T) {
+	if err := SearchSpaceId(); err != nil {
+		t.Fatalf("SearchSpaceId failed: %v", err)
+	}
+}
+
+func TestDownloadFile(t *testing.T) {
+	if err := DownloadFile(); err != nil {
+		t.Fatalf("DownloadFile failed: %v", err)
+	}
+}