通过 postman ,我得到了正确的响应,正文中包含以下 json:
{
"cpu": {
"filters": [
]
}
}
在我的 Angular 2 服务中,我发布了如下请求:
import { Injectable } from '@angular/core';
import { Http, Headers, RequestOptions, Response } from '@angular/http';
import { BaseService } from './base.service';
import { Observable } from 'rxjs/Observable';
import { Cpu } from '../entities/cpu';
import { PostObject } from '../entities/post-object';
import { CPU } from '../datasource/database-data';
import 'rxjs/add/operator/map';
@Injectable()
export class CpuService extends BaseService {
postObject: PostObject;
constructor(private http: Http) {
super();
}
getCpus(): void {
this.postObject = new PostObject();
console.log(JSON.stringify(this.postObject));
this.http.post(this.getUrl('/searchCPU'), JSON.stringify(this.postObject))
.subscribe((result: any) =>
console.log(result);
return result
});
}
}`
Post 对象:
export class PostObject {
cpu: {
filters: string[]
}
}
当我控制台记录我的 postObject 对象时,它是空的......?也许 this.postObject = new PostObject();
是错误的..?
最佳答案
如果您想发送的话,类需要一个构造函数。我想知道发送空对象的用例,但您也可以跳过这些类并手动创建对象。虽然这不太好维护,但可以通过以下方式实现:
this.postObject = {cpu:{filters:[]}}
如果你想要类(class),你会有两个:
export class PostObject {
constructor(public cpu: Cpu) {}
}
export class Cpu {
constructor(public filters: string[]) {}
}
并创建一个新的PostObject
,如下所示:
this.postObject = new PostObject(new Cpu([]))
两种方法都达到了你想要的效果,即:
{
"cpu": {
"filters": [
]
}
}
关于javascript - 在 Angular 2 和 Typescript 中发布对象的问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42768573/