通过lab03/04/05/06其中一个获取访问令牌(access token)
Postman请求：
curl -X POST --user test_client_2:test_secret http://localhost:8080/v1/oauth/introspect -d "token=00ccd40e-72ca-4e79-a4b6-67c95e2e3f1c&token_type_hint=access_token"
响应案例：
{
"active": true,
"scope": "read_write",
"client_id": "test_client_1",
"username": "[email protected]",
"token_type": "Bearer",
"exp": 1454868090
}