问JWT令牌过期时间增加

EN

Python 3.5
Django==2.0.5
djangorestframework==3.8.2
djangorestframework-simplejwt==3.2.3

REST_FRAMEWORK = {
    # Use Django's standard `django.contrib.auth` permissions,
    # or allow read-only access for unauthenticated users.
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
    ],
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
        'rest_framework.authentication.BasicAuthentication',
        'rest_framework.authentication.SessionAuthentication',
    )
} 

JWT_AUTH = {
    'JWT_EXPIRATION_DELTA': datetime.timedelta(seconds=900),
    'JWT_ALLOW_REFRESH': True,
    'JWT_REFRESH_EXPIRATION_DELTA': datetime.timedelta(days=7),
}