The cause of the problem:
Delete from t_escheduler_tenant where tenant_code='xxxx';
resulting in:
Page user list is not displayed
Need to execute: update t_escheduler_user set tenant_id=3; user list will be displayed

问题原因执行操作：
delete from t_escheduler_tenant where tenant_code='xxxx';
导致：
页面用户列表显示不出来
需执行： update t_escheduler_user set tenant_id=3;用户列表才会显示