【发布时间】:2018-05-20 17:45:06
【问题描述】:
我正在尝试将数据发布到我从表单中提取的 API。
问题是它根本不会尝试发送 post 请求。 Register.component.ts:
import { Component, OnInit } from '@angular/core';
import { RegisterService } from '../register.service';
import { FormGroup, FormBuilder, FormControl, Validators, FormArray, ReactiveFormsModule } from '@angular/forms';
import { user } from '../user'
@Component({
selector: 'app-register',
templateUrl: './register.component.html',
styleUrls: ['./register.component.css']
})
export class RegisterComponent implements OnInit {
public myForm: FormGroup;
public submitted: boolean;
public events: any[] = [];
constructor(private registerService: RegisterService,
private _fb: FormBuilder) { }
ngOnInit() {
this.myForm = new FormGroup({
username: new FormControl('', [<any>Validators.required, <any>Validators.minLength(5)]),
email: new FormControl('', [<any>Validators.required, <any>Validators.minLength(5)]),
org_number: new FormControl('', [<any>Validators.required, <any>Validators.minLength(5)]),
password: new FormControl('', [<any>Validators.required, <any>Validators.minLength(8)])
});
}
save(model: user, isValid: boolean){
this.submitted = true;
this.registerService.postUser(model)
console.log(model, isValid)
}
以及它调用的服务:
import { Injectable } from '@angular/core';
import { user } from './user';
import { Observable, of } from 'rxjs';
import { map, catchError } from 'rxjs/operators'
import { HttpClient, HttpHeaders } from '@angular/common/http';
const HttpOptions = {
headers: new HttpHeaders({ 'Content-type': 'application/json' })
};
const HttpOption2 = {
headers: new HttpHeaders({ 'Content-type': 'application/x-www-form-urlencoded' })
}
@Injectable({
providedIn: 'root'
})
export class RegisterService {
private usersUrl= 'api/v1/accounts';
constructor(
private http: HttpClient,
) { }
getUsers(): Observable<user[]> {
return this.http.get<user[]>(this.usersUrl)
}
postUser(object): Observable<user[]>{
console.log(object)
console.log('Did it enter this?')
return this.http.post<user[]>(this.usersUrl, user, HttpOptions)
}
}
我的代码输出预期的信息:用户名:'用户名',电子邮件:'电子邮件'等
而且我知道它调用了该函数,因为它还输出:'Did it enter this?'。
我的 API 没有收到 post-request,我不知道为什么。我一直在official angular Httpclient 页面上寻找答案,以及许多堆栈溢出帖子,我尝试添加 .subscribe 但我得到错误类型订阅不可分配给类型可观察用户,如果我添加 .map( )我得到该地图在可观察用户类型上不存在,如果我添加 .pipe() 我没有收到错误消息,但仍然没有 Post-request。 而如果我添加 .pipe( catchError(this.handleError('addHero', hero)) ); 我得到类型可观察用户不可分配给可观察用户类型。有什么想法吗?
【问题讨论】:
标签: angular forms angular-httpclient