[BUG] [Go Service]Response 200 / 404 when key contain non-ASCII char in get keys api

[JiLiang888]

Describe the bug [BUG] [Go Service]Response 200 / 404 when key contain non-ASCII char in get keys api

To Reproduce Steps to reproduce the behavior:

1. Go to this api

2. input key as : Key©§¥1

3. see response code is 200 ( files exist Key©§¥1) see response code is 404 ( files no exist Key1©§¥)

Expected behavior { "response": { "code": 400, "message": "'Key©§¥1' is invalid(only standard ASCII characters are allowed)" } }