我無法弄清楚如何使這種轉換迭代 json。我的后端有這個 pojo:
class Part{
Long id;
String name;
Set<Part> parts = new HashSet<>();
}
每個部分都可以有部分,而這部分可以有更多的部分等等。
我從 httpclient 以 angular 獲取這些部分并獲取此 json:
[{
"id": 1,
"name": "Parts A and B",
"parts": [{
"id": 2,
"name": "A",
"parts": [{
"id": 4,
"name": "A1",
"parts": []
}]
},
{
"id": 3,
"name": "B",
"parts": []
}
]
},
{
"id": 2,
"name": "A",
"parts": []
},
{
"id": 3,
"name": "B",
"parts": []
},
{
"id": 4,
"name": "A1",
"parts": []
}
]
并且需要轉換為這個來填充 PrimeNG TreeTable:
{
"data": [{
"data": {
"name": "Parts A and B",
"id": "1"
},
"children": [{
"data": {
"name": "Part A",
"id": "2"
},
"children": [{
"data": {
"name": "A1",
"id": "4"
}
}]
},
{
"data": {
"name": "Part B",
"id": "3"
},
"children": []
}
]
},
{
"data": {
"name": "Part A",
"id": "2"
},
"children": []
},
{
"data": {
"name": "Part B",
"id": "3"
},
"children": []
},
{
"data": {
"name": "A1",
"id": "4"
},
"children": []
}
]
}
我怎樣才能做到這一點?在 angular 我得到這個陣列部分:Part[] 并需要partsTree:TreeNode[]
謝謝!!!
uj5u.com熱心網友回復:
它只是一個地圖的簡單轉換;
interface PartAPI{
id: number;
name: string;
parts : PartAPI[];
}
interface Data {
id: number;
name: string;
}
interface Part {
data : Data;
children : Part[];
}
console.log('a')
let convert = (inputArr: PartAPI[] = []) : Part[] => {
return inputArr.map(partApi => ({ data : { id : partApi.id , name : partApi.name }, children: convert(partApi.parts) }) as Part)
}
let data : PartAPI[] = [{
"id": 1,
"name": "Parts A and B",
"parts": [{
"id": 2,
"name": "A",
"parts": [{
"id": 4,
"name": "A1",
"parts": []
}]
},
{
"id": 3,
"name": "B",
"parts": []
}
]
},
{
"id": 2,
"name": "A",
"parts": []
},
{
"id": 3,
"name": "B",
"parts": []
},
{
"id": 4,
"name": "A1",
"parts": []
}
]
console.log(convert(data));
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