如何使用jq正确转换指定JSON对象？现有尝试结果不符合预期

原始JSON数据 #

{
    "locals": {
      "products": {
        "core-tower1": {
          "core-tower1-product-a": ["dev"],
          "core-tower1-product-b": ["dev", "prod"]
        },
        "core-tower2": {
          "core-tower2-product-a": ["pol", "onb"],
          "core-tower2-product-a": ["dev", "prod"]
        }
      }
    }
  }

目标转换格式 #

{
        "core-tower1": [
          "core-tower1-product-a",
          "core-tower1-product-b"
        ],
        "core-tower2": [
          "core-tower2-product-a",
          "core-tower2-product-a"
        ]
      }

错误的jq命令及结果 #

你使用的命令：

jq {'(.locals.products|keys[])':'.locals.products|.[]|keys'}

得到的错误结果：

{
        "core-tower1": [
          "core-tower1-product-a",
          "core-tower1-product-b"
        ],
        "core-tower1": [
          "core-tower2-product-a",
          "core-tower2-product-a"
        ]
      }
 {
        "core-tower2": [
          "core-tower1-product-a",
          "core-tower1-product-b"
        ],
        "core-tower2": [
          "core-tower2-product-a",
          "core-tower2-product-a"
        ]
      }

正确的jq写法 #

方法一：使用with_entries（推荐） #

这是最简洁的写法，直接遍历并转换每个条目：

jq '.locals.products | with_entries({key: .key, value: (.value | keys)})'

方法二：显式遍历转换 #

如果需要更直观的步骤，可以用to_entries和from_entries组合：

jq '.locals.products | to_entries[] | {key: .key, value: .value | keys} | from_entries'

错误原因说明 #

你之前的命令逻辑错误：(.locals.products|keys[])会遍历所有tower的名称，但.locals.products|.[]|keys会取出所有tower下的产品key列表，导致每个tower名称都对应了所有产品的集合，最终生成重复且错误的映射。

而正确的写法是针对每个tower条目，单独提取它自身的产品key列表，确保一一对应。

内容的提问来源于stack exchange，提问作者Owen