Javascript Angular 4使用类型脚本解析响应数据
我有如下响应数据:Javascript Angular 4使用类型脚本解析响应数据,javascript,angular,typescript,Javascript,Angular,Typescript,我有如下响应数据: { "content": [{ "id": 1, "userName": "v7001", "status": 1, "userInfo": { "id": 1, "fullName": "Naruto Uzumaki", "firstName": "Naruto", "lastName": "Uzumaki", "address": "Konoha", "dob":
{
"content": [{
"id": 1,
"userName": "v7001",
"status": 1,
"userInfo": {
"id": 1,
"fullName": "Naruto Uzumaki",
"firstName": "Naruto",
"lastName": "Uzumaki",
"address": "Konoha",
"dob": 1509901200000
}
}, {
"id": 2,
"userName": "v7002",
"status": 0,
"userInfo": {
"id": 2,
"fullName": "Hinata Hyuga",
"firstName": "Hinata",
"lastName": "Hyuga",
"address": "Konoha",
"dob": 1509987600000
}
}],
"last": true,
"totalElements": 3,
"totalPages": 1,
"size": 20,
"number": 0,
"first": true,
"sort": null,
"numberOfElements": 3
}
和用户4以显示数据。我创建了2个界面:用户信息
export class UserInfo {
id: number;
fullName: string;
firstName: string;
lastName: string;
address: string;
dob: string
}
和用户
import {UserInfo} from './user-info'
export class User {
id: number;
userName: String;
status: String;
userInfo: UserInfo;
}
用户服务:
getUsers(): Promise<User[]> {
return this.http.get(this.userUrl)
.toPromise()
.then(response => response.json().data as User[])
.catch(this.handleError);
}
和html格式:
<tr role="row" class="odd" *ngFor="let lst of user.content">
<td>{{lst.userInfo.fullName}}</td>
<td>{{lst.userInfo.address}}</td>
</tr>
{{lst.userInfo.fullName}
{{lst.userInfo.address}
但当应用程序运行时,控制台上会显示错误消息:content invalid。
此.user未定义。请给我建议。如果您希望从
getUsers
方法接收用户
收集,那么请返回response.json().content
而不是response.json().data
,然后User[]
为User[]提供收集工具是有意义的。
getUsers(): Promise<User[]> {
return this.http.get(this.userUrl)
.toPromise()
.then(response => response.json().content as User[])
.catch(this.handleError);
}
HTML
<tr role="row" class="odd" *ngFor="let lst of users">
<td>{{lst.userInfo.fullName}}</td>
<td>{{lst.userInfo.address}}</td>
</tr>
{{lst.userInfo.fullName}
{{lst.userInfo.address}
user
是组件中的一个数组,它没有内容
属性。请注意:angular团队已弃用。改用。
this.userService.getUsers().then(users => this.users = users);
<tr role="row" class="odd" *ngFor="let lst of users">
<td>{{lst.userInfo.fullName}}</td>
<td>{{lst.userInfo.address}}</td>
</tr>