Question

在Postman中，配置文件被授权并返回json对象。但是在前端，我遇到了这个错误。

HttpErrorResponse {header：HttpHeaders，status：401，statusText：“ Unauthorized”，url：“ http://localhost:3000/users/profile”，ok：false，...}

这是我的auth.service.ts文件：

import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Observable, Subject } from 'rxjs';
import 'rxjs/add/operator/map';

interface data{
  success: boolean;
  msg: string;
  token: string;
  user: any;
}

export class AuthService {

  authToken: any;
  user: any;

constructor(private http: HttpClient) { }

getProfile() {
    let headers = new HttpHeaders();
    this.loadToken();
    headers.append('Authorization', this.authToken);
    headers.append('Content-Type', 'application/json');
    return this.http.get<data>('http://localhost:3000/users/profile', {headers: headers})
    .map(res => res);
  }

loadToken(){
    const Token = localStorage.getItem('id_token');
    this.authToken = Token;
  }
}

profile.ts文件：

import { Component, OnInit } from '@angular/core';
import { AuthService } from '../../services/auth.service';
import { Router } from '@angular/router';

@Component({
  selector: 'app-profile',
  templateUrl: './profile.component.html',
  styleUrls: ['./profile.component.css']
})
export class ProfileComponent implements OnInit {

  user: Object;

  constructor(
    private authService: AuthService,
    private router: Router,
  ) { }

  ngOnInit() {
    this.authService.getProfile().subscribe(profile => {
      this.user = profile.user;
    },
    err => {
      console.log(err);
      return false;
    });
  }

}

Answer 1

发生这种情况是因为this.loadToken（）返回了令牌。您必须等到this.loadToken（）函数返回给您authToken。

为此，您可以对函数使用async和await，或者像

那样从this.loadToken返回值

getProfile() {
    let headers = new HttpHeaders();
    this.authToken = this.loadToken();
    headers.append('Authorization', this.authToken);
    headers.append('Content-Type', 'application/json');
    return this.http.get<data>('http://localhost:3000/users/profile', {headers: headers})
    .map(res => res);
  }

loadToken(){
    const Token = localStorage.getItem('id_token');
     return Token;
  }

GET请求401（未经授权）

1 个答案: