I found the solution:
Add below 2 parameters to servcie.json:
"generateRefreshToken" : "true",
"renewRefreshToken" : "true",
He Vincent在 2021年9月15日星期三上午10:24:22 [UTC+8]寫道：
> I tried to refresh toakes as below:
> POST */cas/oidc/token* HTTP/1.1
> Host: server.example.com
> Content-Type: application/x-www-form-urlencoded
>
> client_id=s6BhdRkqt3
> &client_secret=some_secret12345
> &*grant_type=refresh_token*
> &refresh_token=8xLOxBtZp8
> &scope=openid%20profile
>
> The *response *was like this:
> {
> "access_token": "AT-4-xxxxxxxx",
> "id_token": "eyJhbGciOiJSUzI1xxxx",
> "token_type": "bearer",
> "expires_in": 28800,
> "scope": "email openid offline_access profile"
> }
>
> There was no refresh_token like :
> "refresh_token": "9yNOxJtZa5",
>
>
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