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angular - 将 json 数据转换为 component.ts 中的对象

问题描述

我有 json 数据，我想将其转换为对象格式以进行创建操作。

json

[
{
    "user": {
        "id": 83,
        "username": "das",
        "first_name": "dsafha",
        "last_name": "dfksdfk",
        "email": "sasda@gmail.com",
        "is_active": true,
        "is_superuser": false
    },
    "role": "testBu"
},
{
    "user": {
        "id": 84,
        "username": "sadfds",
        "first_name": "dshhgds",
        "last_name": "fsdjsl",
        "email": "fdjgd@gmail.com",
        "is_active": true,
        "is_superuser": false
    },
    "role": "testeditrole"
},
{
    "user": {
        "id": 86,
        "username": "fs",
        "first_name": "efhks",
        "last_name": "sofdh",
        "email": "fdshk@gmail.com",
        "is_active": true,
        "is_superuser": false
    },
    "role": "testeditrole"
},
{
    "user": {
        "id": 87,
        "username": "xz",
        "first_name": "vj",
        "last_name": "vkfd",
        "email": "sdsl@gmail.com",
        "is_active": true,
        "is_superuser": false
    },
    "role": "testeditrole"
}
]

我试着这样做

组件.ts

let user:any = {};
   user["username"] = this.user.user.email
   user["first_name"] = this.user.user.first_name
   user["last_name"]= this.user.user.last_name
   user["email"]= this.user.user.email

   this.userData["user"] = user
   this.userData["role"] = this.user.role

在将数据输入输入字段后进行安慰时，我没有得到角色数据。我确实得到了其他数据。角色数据显示为空。我确实认为这是因为我在 componet.ts 中编写代码的方式导致了问题。

标签： angularangular5angular6angular6-json-schema-form

解决方案

您始终可以创建模型：

export class User {
 id: string,
 username: string,
 first_name: string,
 last_name: string,
 email: string,
 is_active: boolean,
 is_superuser: boolean
}
    
export class UserDetails{
 user:User;
 role:string;
}

然后：

// Assume you have received the json in string form in
'resultlist' variable
let dataList = <Array<UserDetails>>JSON.parse(resultlist);

或者：

// Assume you have received the json in object form in 'resultlist' variable
let dataList = <Array<UserDetails>>resultlist;

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