mule - Mulesoft 将多个 JSON/XML 转换为 CSV

Question

我对在 Mulesoft 中将 JSON 转换为 CSV 完全陌生。目前我需要努力将嵌套的 JSON 转换为 CSV，我的 CSV 应该看起来像这样，我的 JSON 会像

{
  "Invoice": [
    {
      "Invoice Number*": "",
      "Supplier Name": "",
      "Supplier Number": "",
      "Status": "",
      "Invoice Date*": ""
    }
  ],
  "Invoice Line": [
    {
      "Invoice Number*": "",
      "Supplier Name": "",
      "Supplier Number": "",
      "Line Number": "",
      "Description*": "",
      "Supplier Part Number": "",
      "Auxiliary Part Number": "",
      "Price*": "",
      "Quantity": "",
      "Bulk Price": "",
      "Bulk Price Qty": ""
    }
  ],
  "Invoice Tax Line": [
    {
      "Invoice Number*": "",
      "Invoice Line Number": "",
      "Invoice Charge Number": "",
      "Line Number": "",
      "Tax Amount": "",
      "Tax Rate": "",
      "Tax Code": "",
      "Tax Rate Type": ""
    }
  ]
}

我对 CSV 的了解是只有一个标题。对我来说，将这个复杂的 JSON 映射到 CSV 中显示不同标题的最佳方法是什么？

标签： muledataweavemulesoft

Answer 1

你可以这样做：

%dw 2.0
output application/csv header=false
---
flatten (
    [
        {"Invoice Number":"Invoice Number",
            "Supplier Name": "Supplier Name",
            "Supplier Number" :"Supplier Number",
            "Status" : "Status",
            "Invoice Date*" : "Invoice Date*"
        },
        {
            "Invoice Number":"Invoice Number*",
            "Supplier Name":"Supplier Name",
            "Supplier Number":"Supplier Number",
            "Status":"Status",
            "Invoice Date*":"Invoice Date*"
        },
        payload.Invoice map {
            "Invoice Number":$."Invoice Number*",
            "Supplier Name":$."Supplier Name",
            "Supplier Number":$."Supplier Number",
            "Status":$.Status,
            "Invoice Date*":$."Invoice Date*"
        }, 
        payload."Invoice Line" map {
            "Invoice Number": $."Invoice Number*",
            "Supplier Name":$."Supplier Name",
            ...
        } 
        , 
        payload."Invoice Tax Line" map {
            "Invoice Number":$."Invoice Number*",
            ...
        } 
    ]
)