Postman在测试中访问Json中的子对象

Question

我试图访问这个Json中的名称对象，以便在Postman测试中放入本地变量。

Json{

"Line": [
{
"Id": "1",
"LineNum": 1,
"Description": "Custom Design",
"Amount": 75.00,
"DetailType": "SalesItemLineDetail",
"SalesItemLineDetail": {
"ItemRef": {
"value": "4",
"name": "Design"
},
"UnitPrice": 75,
"Qty": 1,
"ItemAccountRef": {
"value": "82",
"name": "Design income"
},
"TaxCodeRef": {
"value": "NON"
}
}

}
]

}

我使用这段代码来循环遍历Line Array但是如果我尝试深入到1级以上Itemref将返回undefined

let ProductArray=[];
for (let i=0; i < Line.length; i++) {
//

ProductArray.push({

"value":Line[i].SalesItemLineDetail.ItemRef.name
})
}

我也试过

'"value":Line[i].SalesItemLineDetail["ItemRef"].name

"value":Line[i].SalesItemLineDetail["ItemRef"]["name"]

all return ItemRef undefined

正确的语法或代码是什么?

TIA

Answer 1

您的代码中只缺少一些小块。我重新创建了一个测试并模拟了相同的JSON数据。我只是将缺失的部分添加到您的代码中，测试成功.

GET请求:

//Response body JSON
{
"Line": [
{
"Id": "1",
"LineNum": 1,
"Description": "Custom Design",
"Amount": 75,
"DetailType": "SalesItemLineDetail",
"SalesItemLineDetail": {
"ItemRef": {
"value": "4",
"name": "Design"
},
"UnitPrice": 75,
"Qty": 1,
"ItemAccountRef": {
"value": "82",
"name": "Design income"
},
"TaxCodeRef": {
"value": "NON"
}
}
}
]
}
// Tests
// Check response body
const res = pm.response.json().Line;
let ProductArray=[];
for (let i=0; i < res.length; i++) {
const res = pm.response.json().Line;
ProductArray.push({
"value":res[i].SalesItemLineDetail.ItemRef.name
})
// Lets see console.log result
console.log('Check For:', res[i].SalesItemLineDetail.ItemRef.name)

// Set Result to environment variables
pm.environment.set("variable_key", res[i].SalesItemLineDetail.ItemRef.name);
}

console.log输出:Design它也被添加到环境变量。