diff --git a/middleware/student.go b/middleware/student.go
index 0327eb2..ff8439b 100644
--- a/middleware/student.go
+++ b/middleware/student.go
@@ -226,7 +226,7 @@ func fetchTokenFromAPI(username, password string) (string, error) {
 	var result map[string]interface{}
 	json.Unmarshal(body, &result)
 	if _, ok := result["code"]; !ok || result["code"] != 1 {
-		return "", errors.New("fetchTokenFromAPI:获取token失败,token无效,code:"+result["code"]+" message:"+result["message"])
+		return "", errors.New("fetchTokenFromAPI:获取token失败,token无效,code:"+result["code"].(string)+" message:"+result["message"].(string))
 	}
 	// 如果不存在message字段，或message字段的值为空，则token为空
 	if _, ok := result["message"]; !ok || result["message"] == "" {