在 protobuf文件中添加的验证规则未生效

首先要确保在 protoc 命令中添加参数:

--validate_out=paths=source_relative,lang=go:. \
grpc.gohttp.govalidate.Validator
import "github.com/go-kratos/kratos/v2/middleware/validate"
....
        http.Middleware(
            recovery.Recovery(),
            validate.Validator(),
        ),
....