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JSON 结构对比可运行案例

监控指标：解释 series 首部插入导致的多处差异

数组按下标逐项比较。在 series 开头插入记录后，后续元素位置移动，会产生多处修改和一个尾部新增；这不等于多条业务记录都发生了真实字段变更。需要按 ID 配对时应先在自己的业务逻辑中处理。

浏览器本地处理合成数据同场景 32 个案例 ↗
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示例工作台

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JSON 结构对比修改下方数据后重新运行
运行结果
[
  {
    "op": "replace",
    "path": "/data/series/0/metricId",
    "oldValue": "demo-metrics-1",
    "value": "demo-inserted"
  },
  {
    "op": "replace",
    "path": "/data/series/0/metricName",
    "oldValue": "演示响应耗时",
    "value": "新增演示记录"
  },
  {
    "op": "replace",
    "path": "/data/series/1/metricId",
    "oldValue": "demo-metrics-2",
    "value": "demo-metrics-1"
  },
  {
    "op": "replace",
    "path": "/data/series/1/metricName",
    "oldValue": "演示队列长度",
    "value": "演示响应耗时"
  },
  {
    "op": "replace",
    "path": "/data/series/1/value",
    "oldValue": 5,
    "value": 18
  },
  {
    "op": "replace",
    "path": "/data/series/1/healthy",
    "oldValue": false,
    "value": true
  },
  {
    "op": "replace",
    "path": "/data/series/1/unit",
    "oldValue": "count",
    "value": "ms"
  },
  {
    "op": "replace",
    "path": "/data/series/1/labels/region",
    "oldValue": "eu-demo",
    "value": "cn-demo"
  },
  {
    "op": "replace",
    "path": "/data/series/1/labels/routes/0",
    "oldValue": "/queue",
    "value": "/demo"
  },
  {
    "op": "add",
    "path": "/data/series/2",
    "value": {
      "metricId": "demo-metrics-2",
      "metricName": "演示队列长度",
      "value": 5,
      "healthy": false,
      "unit": "count",
      "labels": {
        "region": "eu-demo",
        "routes": [
          "/queue"
        ]
      }
    }
  }
]

原例已核验，可修改输入后重新运行。

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01

场景与操作说明

监控值需要结合单位和标签解释。两条同名指标若标签不同，不应直接相减；样本变化也不能证明发生了真实告警。

value 的单位由 unit 给出，本例只演示非负整数值。

  1. 核对 监控指标 的字段层级，保留 metricId 的字符串类型。
  2. 修改一项输入并运行，观察结果中的值或路径如何变化。
  3. 载入对照样本，复现下面的变化；恢复原例会替换当前输入。
02

对照样本

对照样本交换 A 与 B。观察新增与删除的方向、修改前后值如何反转；没有差异时交换仍无差异。

查看对照输入
{
  "ok": true,
  "data": {
    "series": [
      {
        "metricId": "demo-inserted",
        "metricName": "新增演示记录",
        "value": 18,
        "healthy": true,
        "unit": "ms",
        "labels": {
          "region": "cn-demo",
          "routes": [
            "/demo"
          ]
        }
      },
      {
        "metricId": "demo-metrics-1",
        "metricName": "演示响应耗时",
        "value": 18,
        "healthy": true,
        "unit": "ms",
        "labels": {
          "region": "cn-demo",
          "routes": [
            "/demo"
          ]
        }
      },
      {
        "metricId": "demo-metrics-2",
        "metricName": "演示队列长度",
        "value": 5,
        "healthy": false,
        "unit": "count",
        "labels": {
          "region": "eu-demo",
          "routes": [
            "/queue"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}
{
  "ok": true,
  "data": {
    "series": [
      {
        "metricId": "demo-metrics-1",
        "metricName": "演示响应耗时",
        "value": 18,
        "healthy": true,
        "unit": "ms",
        "labels": {
          "region": "cn-demo",
          "routes": [
            "/demo"
          ]
        }
      },
      {
        "metricId": "demo-metrics-2",
        "metricName": "演示队列长度",
        "value": 5,
        "healthy": false,
        "unit": "count",
        "labels": {
          "region": "eu-demo",
          "routes": [
            "/queue"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}

对照样本的实际结果

[
  {
    "op": "replace",
    "path": "/data/series/0/metricId",
    "oldValue": "demo-inserted",
    "value": "demo-metrics-1"
  },
  {
    "op": "replace",
    "path": "/data/series/0/metricName",
    "oldValue": "新增演示记录",
    "value": "演示响应耗时"
  },
  {
    "op": "replace",
    "path": "/data/series/1/metricId",
    "oldValue": "demo-metrics-1",
    "value": "demo-metrics-2"
  },
  {
    "op": "replace",
    "path": "/data/series/1/metricName",
    "oldValue": "演示响应耗时",
    "value": "演示队列长度"
  },
  {
    "op": "replace",
    "path": "/data/series/1/value",
    "oldValue": 18,
    "value": 5
  },
  {
    "op": "replace",
    "path": "/data/series/1/healthy",
    "oldValue": true,
    "value": false
  },
  {
    "op": "replace",
    "path": "/data/series/1/unit",
    "oldValue": "ms",
    "value": "count"
  },
  {
    "op": "replace",
    "path": "/data/series/1/labels/region",
    "oldValue": "cn-demo",
    "value": "eu-demo"
  },
  {
    "op": "replace",
    "path": "/data/series/1/labels/routes/0",
    "oldValue": "/demo",
    "value": "/queue"
  },
  {
    "op": "remove",
    "path": "/data/series/2",
    "oldValue": {
      "metricId": "demo-metrics-2",
      "metricName": "演示队列长度",
      "value": 5,
      "healthy": false,
      "unit": "count",
      "labels": {
        "region": "eu-demo",
        "routes": [
          "/queue"
        ]
      }
    }
  }
]