spring-cloud-alibaba/spring-cloud-alibaba-examples/appactive-example/rule/idUnitMapping.json

{
  "itemType": "UnitRuleItem",
  "items": [
    {
      "name": "unit",
      "conditions": [
        {
          "@userIdBetween": [
            "0~1999"
          ]
        }
      ]
    },
    {
      "name": "center",
      "conditions": [
        {
          "@userIdBetween": [
            "2000~9999"
          ]
        }
      ]
    }
  ]
}