diff --git a/idp/adfs.go b/idp/adfs.go
index e6bdc260..6e01fa40 100644
--- a/idp/adfs.go
+++ b/idp/adfs.go
@@ -19,7 +19,7 @@ import (
 	"crypto/tls"
 	"encoding/json"
 	"fmt"
-	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"time"
@@ -88,7 +88,7 @@ func (idp *AdfsIdProvider) GetToken(code string) (*oauth2.Token, error) {
 	if err != nil {
 		return nil, err
 	}
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/baidu.go b/idp/baidu.go
index b0e2ba17..f44040b4 100644
--- a/idp/baidu.go
+++ b/idp/baidu.go
@@ -18,7 +18,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io"
+	"io/ioutil"
 	"net/http"
 
 	"golang.org/x/oauth2"
@@ -97,7 +97,7 @@ func (idp *BaiduIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error)
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/casdoor.go b/idp/casdoor.go
index 290459a9..9ec5d093 100644
--- a/idp/casdoor.go
+++ b/idp/casdoor.go
@@ -17,7 +17,6 @@ package idp
 import (
 	"encoding/json"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"net/http"
 	"net/url"
@@ -133,7 +132,7 @@ func (idp *CasdoorIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/dingtalk.go b/idp/dingtalk.go
index 5de7a480..c4a553fc 100644
--- a/idp/dingtalk.go
+++ b/idp/dingtalk.go
@@ -18,6 +18,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"strings"
 	"time"
@@ -143,7 +144,7 @@ func (idp *DingTalkIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, erro
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -178,7 +179,7 @@ func (idp *DingTalkIdProvider) postWithBody(body interface{}, url string) ([]byt
 	if err != nil {
 		return nil, err
 	}
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/gitee.go b/idp/gitee.go
index 2bd426e7..c7896d24 100644
--- a/idp/gitee.go
+++ b/idp/gitee.go
@@ -19,6 +19,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -92,7 +93,7 @@ func (idp *GiteeIdProvider) GetToken(code string) (*oauth2.Token, error) {
 	if err != nil {
 		return nil, err
 	}
-	rbs, err := io.ReadAll(resp.Body)
+	rbs, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/github.go b/idp/github.go
index 1cee2a44..9521becf 100644
--- a/idp/github.go
+++ b/idp/github.go
@@ -17,7 +17,7 @@ package idp
 import (
 	"context"
 	"encoding/json"
-	"io"
+	"io/ioutil"
 	"net/http"
 	"strconv"
 	"time"
@@ -172,7 +172,7 @@ func (idp *GithubIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error)
 
 	defer resp.Body.Close()
 
-	body, err := io.ReadAll(resp.Body)
+	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/gitlab.go b/idp/gitlab.go
index 445bc4fa..14ba8bd2 100644
--- a/idp/gitlab.go
+++ b/idp/gitlab.go
@@ -17,7 +17,7 @@ package idp
 import (
 	"encoding/json"
 	"fmt"
-	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -85,7 +85,7 @@ func (idp *GitlabIdProvider) GetToken(code string) (*oauth2.Token, error) {
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -209,7 +209,7 @@ func (idp *GitlabIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error)
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/google.go b/idp/google.go
index 5357c34a..d4fbb1e0 100644
--- a/idp/google.go
+++ b/idp/google.go
@@ -19,7 +19,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io"
+	"io/ioutil"
 	"net/http"
 
 	"golang.org/x/oauth2"
@@ -95,7 +95,7 @@ func (idp *GoogleIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error)
 	}
 
 	defer resp.Body.Close()
-	body, err := io.ReadAll(resp.Body)
+	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/infoflow_internal.go b/idp/infoflow_internal.go
index 01be1fe9..b7d7f4e8 100644
--- a/idp/infoflow_internal.go
+++ b/idp/infoflow_internal.go
@@ -17,7 +17,7 @@ package idp
 import (
 	"encoding/json"
 	"fmt"
-	"io"
+	"io/ioutil"
 	"net/http"
 
 	"golang.org/x/oauth2"
@@ -69,7 +69,7 @@ func (idp *InfoflowInternalIdProvider) GetToken(code string) (*oauth2.Token, err
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -147,7 +147,7 @@ func (idp *InfoflowInternalIdProvider) GetUserInfo(token *oauth2.Token) (*UserIn
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -165,7 +165,7 @@ func (idp *InfoflowInternalIdProvider) GetUserInfo(token *oauth2.Token) (*UserIn
 		return nil, err
 	}
 
-	data, err = io.ReadAll(resp.Body)
+	data, err = ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/infoflow_third_party.go b/idp/infoflow_third_party.go
index fd1d60f9..6999f193 100644
--- a/idp/infoflow_third_party.go
+++ b/idp/infoflow_third_party.go
@@ -18,6 +18,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"strings"
 	"time"
@@ -143,7 +144,7 @@ func (idp *InfoflowIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, erro
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -161,7 +162,7 @@ func (idp *InfoflowIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, erro
 		return nil, err
 	}
 
-	data, err = io.ReadAll(resp.Body)
+	data, err = ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -196,7 +197,7 @@ func (idp *InfoflowIdProvider) postWithBody(body interface{}, url string) ([]byt
 	if err != nil {
 		return nil, err
 	}
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/lark.go b/idp/lark.go
index 48a5efe1..05a65d53 100644
--- a/idp/lark.go
+++ b/idp/lark.go
@@ -17,6 +17,7 @@ package idp
 import (
 	"encoding/json"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"strings"
 	"time"
@@ -168,7 +169,7 @@ func (idp *LarkIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error) {
 	req.Header.Set("Authorization", "Bearer "+token.AccessToken)
 
 	resp, err := idp.Client.Do(req)
-	data, err = io.ReadAll(resp.Body)
+	data, err = ioutil.ReadAll(resp.Body)
 	err = resp.Body.Close()
 	if err != nil {
 		return nil, err
@@ -200,7 +201,7 @@ func (idp *LarkIdProvider) postWithBody(body interface{}, url string) ([]byte, e
 	if err != nil {
 		return nil, err
 	}
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/linkedin.go b/idp/linkedin.go
index 5124ba00..60f75432 100644
--- a/idp/linkedin.go
+++ b/idp/linkedin.go
@@ -18,6 +18,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strings"
@@ -84,7 +85,7 @@ func (idp *LinkedInIdProvider) GetToken(code string) (*oauth2.Token, error) {
 	if err != nil {
 		return nil, err
 	}
-	rbs, err := io.ReadAll(resp.Body)
+	rbs, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -322,7 +323,7 @@ func (idp *LinkedInIdProvider) GetUrlRespWithAuthorization(url, token string) ([
 		}
 	}(resp.Body)
 
-	bs, err := io.ReadAll(resp.Body)
+	bs, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/qq.go b/idp/qq.go
index e37745cf..16ed98b7 100644
--- a/idp/qq.go
+++ b/idp/qq.go
@@ -18,7 +18,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"regexp"
@@ -75,7 +75,7 @@ func (idp *QqIdProvider) GetToken(code string) (*oauth2.Token, error) {
 	}
 
 	defer resp.Body.Close()
-	tokenContent, err := io.ReadAll(resp.Body)
+	tokenContent, err := ioutil.ReadAll(resp.Body)
 
 	re := regexp.MustCompile("token=(.*?)&")
 	matched := re.FindAllStringSubmatch(string(tokenContent), -1)
@@ -145,7 +145,7 @@ func (idp *QqIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error) {
 	}
 
 	defer resp.Body.Close()
-	openIdBody, err := io.ReadAll(resp.Body)
+	openIdBody, err := ioutil.ReadAll(resp.Body)
 
 	re := regexp.MustCompile("\"openid\":\"(.*?)\"}")
 	matched := re.FindAllStringSubmatch(string(openIdBody), -1)
@@ -161,7 +161,7 @@ func (idp *QqIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo, error) {
 	}
 
 	defer resp.Body.Close()
-	userInfoBody, err := io.ReadAll(resp.Body)
+	userInfoBody, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/wecom_internal.go b/idp/wecom_internal.go
index a5665316..1f80fc62 100644
--- a/idp/wecom_internal.go
+++ b/idp/wecom_internal.go
@@ -17,7 +17,7 @@ package idp
 import (
 	"encoding/json"
 	"fmt"
-	"io"
+	"io/ioutil"
 	"net/http"
 	"time"
 
@@ -72,7 +72,7 @@ func (idp *WeComInternalIdProvider) GetToken(code string) (*oauth2.Token, error)
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -122,7 +122,7 @@ func (idp *WeComInternalIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo,
 		return nil, err
 	}
 
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -143,7 +143,7 @@ func (idp *WeComInternalIdProvider) GetUserInfo(token *oauth2.Token) (*UserInfo,
 		return nil, err
 	}
 
-	data, err = io.ReadAll(resp.Body)
+	data, err = ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/wecom_third_party.go b/idp/wecom_third_party.go
index 41f78985..3f5ac9a2 100644
--- a/idp/wecom_third_party.go
+++ b/idp/wecom_third_party.go
@@ -18,6 +18,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"strings"
 	"time"
@@ -194,7 +195,7 @@ func (idp *WeComIdProvider) postWithBody(body interface{}, url string) ([]byte,
 	if err != nil {
 		return nil, err
 	}
-	data, err := io.ReadAll(resp.Body)
+	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/idp/weibo.go b/idp/weibo.go
index 3082974d..fce2fa6d 100644
--- a/idp/weibo.go
+++ b/idp/weibo.go
@@ -19,6 +19,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -91,7 +92,7 @@ func (idp *WeiBoIdProvider) GetToken(code string) (*oauth2.Token, error) {
 			return
 		}
 	}(resp.Body)
-	bs, err := io.ReadAll(resp.Body)
+	bs, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
diff --git a/object/init.go b/object/init.go
index 52d07106..3de10fe9 100644
--- a/object/init.go
+++ b/object/init.go
@@ -15,17 +15,11 @@
 package object
 
 import (
-	_ "embed"
+	"io/ioutil"
 
 	"github.com/casdoor/casdoor/util"
 )
 
-//go:embed token_jwt_key.pem
-var tokenJwtPublicKey string
-
-//go:embed token_jwt_key.key
-var tokenJwtPrivateKey string
-
 func InitDb() {
 	initBuiltInOrganization()
 	initBuiltInUser()
@@ -122,7 +116,22 @@ func initBuiltInApplication() {
 	AddApplication(application)
 }
 
+func readTokenFromFile() (string, string) {
+	pemPath := "./object/token_jwt_key.pem"
+	keyPath := "./object/token_jwt_key.key"
+	pem, err := ioutil.ReadFile(pemPath)
+	if err != nil {
+		return "", ""
+	}
+	key, err := ioutil.ReadFile(keyPath)
+	if err != nil {
+		return "", ""
+	}
+	return string(pem), string(key)
+}
+
 func initBuiltInCert() {
+	tokenJwtPublicKey, tokenJwtPrivateKey := readTokenFromFile()
 	cert := getCert("admin", "cert-built-in")
 	if cert != nil {
 		return
diff --git a/object/token_jwt.go b/object/token_jwt.go
index fc23036a..7fe0e752 100644
--- a/object/token_jwt.go
+++ b/object/token_jwt.go
@@ -15,7 +15,6 @@
 package object
 
 import (
-	_ "embed"
 	"fmt"
 	"time"
 
diff --git a/util/string.go b/util/string.go
index 6eb39282..afe02458 100644
--- a/util/string.go
+++ b/util/string.go
@@ -20,7 +20,7 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
-	"os"
+	"io/ioutil"
 	"strconv"
 	"strings"
 	"time"
@@ -162,7 +162,7 @@ func GetMinLenStr(strs ...string) string {
 }
 
 func ReadStringFromPath(path string) string {
-	data, err := os.ReadFile(path)
+	data, err := ioutil.ReadFile(path)
 	if err != nil {
 		panic(err)
 	}
@@ -171,7 +171,7 @@ func ReadStringFromPath(path string) string {
 }
 
 func WriteStringToPath(s string, path string) {
-	err := os.WriteFile(path, []byte(s), 0644)
+	err := ioutil.WriteFile(path, []byte(s), 0644)
 	if err != nil {
 		panic(err)
 	}