如何索引 JSON 数组中的两个值？

Question

我正在尝试查找两个匹配值的数组索引。我在下面有我的 Groovy 脚本，它为我提供了 WhenWeighed 的索引并且可以正常工作。 Returns 正确的索引。我难以理解的部分是将 OpSeq 添加到索引标准中。

我要做的是找到 WhenWeighed 和 OpSeq 的索引。例如，我想找到 WhenWeighed = BH 和 OpSeq = 30 的索引。在我下面 JSON 这应该是 4.

谁能帮忙解释一下 Groovy 你是怎么做到的？

JSON 使用：

{
  "BusinessUnit": "1111111",
  "WorkOrder": 1111111,
  "WeightEstimatesInq": [
    {
      "WhenWeighed": "BH",
      "WhenWeighedDesc": "Before Heading Weight",
      "TotalWeight": 900,
      "Weight": 12,
      "OpSeq": "10",
      "AdditionalNotes": " ",
      "TareWeight": " ",
      "Effective Date": "null"
    },
    {
      "WhenWeighed": "AH",
      "WhenWeighedDesc": "After Heading Weight",
      "TotalWeight": 987,
      "Weight": 900,
      "OpSeq": "10",
      "AdditionalNotes": "Weighed Bin 10 5/17/2022",
      "TareWeight": "87",
      "Effective Date": "null"
    },
    {
      "WhenWeighed": "BO",
      "WhenWeighedDesc": "Before OSP Weight",
      "TotalWeight": 900,
      "Weight": 9,
      "OpSeq": "50",
      "AdditionalNotes": " ",
      "TareWeight": " ",
      "Effective Date": "null"
    },
    {
      "WhenWeighed": "AO",
      "WhenWeighedDesc": "After OSP Weight",
      "TotalWeight": 1000,
      "Weight": 750,
      "OpSeq": "50",
      "AdditionalNotes": " ",
      "TareWeight": "150",
      "Effective Date": "null"
    },
    {
      "WhenWeighed": "BH",
      "WhenWeighedDesc": "Before Heading Weight",
      "TotalWeight": 720,
      "Weight": 700,
      "OpSeq": "30",
      "AdditionalNotes": "Weighed Bin 30 5/17/2022",
      "TareWeight": "20",
      "Effective Date": "null"
    }
  ],
  "status": "SUCCESS",
  "startTimestamp": "2022-05-17T12:27:49.302-0400",
  "endTimestamp": "2022-05-17T12:27:50.279-0400",
  "serverExecutionSeconds": 0.977
}

Groovy 使用：

  // Read Input Values
  String aWhenWeighedUDC = aInputMap.WhenWeighedUDC ?: " "
  String aInputJson = aInputMap.InputJson ?: "{}"
   
  // Initialize Output Values
  def error = " "
  def rowNumber = 0
  def lastRowNumber = 1
  // Parse JSON
  def json = new JsonSlurper().parseText( aInputJson )
    
  // Determine Row Numbers
  def rowset = json?.WeightEstimatesInq
  if ( rowset ) {
    rowNumber = rowset*.WhenWeighed.indexOf( aWhenWeighedUDC ) + 1
    lastRowNumber = rowset.size()
  }

Answer 1

如果您知道 WeightEstimatesInq 始终是项目列表的键，您可以这样做：

json["WeightEstimatesInq"].findIndexOf {
   it["WhenWeighed"] == "BH" && it["OpSeq"] == "30"
}

这将产生 4。您可以通过 && 添加更多条件。

请注意，如果没有符合您的条件，这有可能 return -1。

如何索引 JSON 数组中的两个值？

How do you index two value in JSON arrays?

groovy

json