Repair when docker compose up, docker_litemall service occurre log error, like this "The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server" (#407)
Co-authored-by: hedc <3479785008h@gmail.com>

Co-authored-by: 2020mac <2020mac@2020macdeMacBook-Pro.local>

Merge pull request !34 from 神人表婶/N/A

Merge pull request !35 from 神人表婶/N/A

Merge pull request !36 from 神人表婶/N/A

优化接口文档显示和请求

优化接口文档显示和请求

修改接口文件显示内容和优化

Merge pull request !32 from 滑稽刘/master

the original logic is wrong, it will just get the last coupon item of a user, mismatch the couponId and discount.