Question

我正在尝试将数据发送到服务器，但只是没有到达那里

 signUp(email: string, password: string) {
    let data = { email, password };
    let headers = new HttpHeaders({
      'Content-Type':'application/json'
    });

    console.log('Requesting', email, password);
    return this.http.post(this.sellerApi, data, { responseType: 'text', headers });
  }

  this.api.signUp(email, password).subscribe( r => console.log(r));

我在服务器上打印了请求，但请求为空

Answer 1

角度http.post从服务器返回结果的Observable。您必须使用目标函数订阅可观察对象，以便对结果（以及任何错误）进行处理。

Answer 2

首先，您需要在import HttpClientModule from '@angular/common/http'中插入app.module.ts。然后，您需要在组件constructor(DI)中注入httpClient依赖项，如下所示：

  constructor(private http: HttpClient) {
  }

  signUp(email: string, password: string) {
    let data = { email, password };
    let headers = new HttpHeaders({
      'Content-Type': 'application/json'
    });

    console.log('Requesting', email, password);
    return this.http.post(this.sellerApi, data, { responseType: 'text', headers : headers });
  }

  testApi() {
    this.signUp(email, password).subscribe(r => console.log(r));
  }

角度发布请求将数据发送到服务器

2 个答案: