{ "schema": { "bsonType": "object", "required": ["_id", "value"], "properties": { "_id": { "bsonType": "string", "description": "key,格式:uni-id:[dcloudAppid]:[platform]:[openid]:[access-token|user-access-token|session-key|encrypt-key-version|ticket]" }, "value": { "bsonType": "object", "description": "字段_id对应的值" }, "expired": { "bsonType": "timestamp", "description": "过期时间" } } } }