bug fix:correct way to judge a user does not exist

kafka-manager-extends/kafka-manager-account/src/main/java/com/xiaojukeji/kafka/manager/account/component/sso/BaseSessionSignOn.java

@@ -57,7 +57,7 @@ public class BaseSessionSignOn extends AbstractSingleSignOn {
                 return null;
             }
 
-            if(ValidateUtils.isNull(accountResult) && authUserRegistration){
+            if((ValidateUtils.isNull(accountResult) || ValidateUtils.isNull(accountResult.getData())) && authUserRegistration){
                 //自动注册
                 AccountDO accountDO = new AccountDO();
                 accountDO.setUsername(dto.getUsername());
@@ -105,4 +105,4 @@ public class BaseSessionSignOn extends AbstractSingleSignOn {
         response.setStatus(AbstractSingleSignOn.REDIRECT_CODE);
         response.addHeader(AbstractSingleSignOn.HEADER_REDIRECT_KEY, "");
     }
-}
\ No newline at end of file
+}