Angular 侦听器未侦听http POST请求(6)
我已经创建了一个角度拦截器来实现httpinterceptor。对于http GET请求,它工作正常。但POST请求失败 我的拦截器代码如下Angular 侦听器未侦听http POST请求(6),angular,angular6,angular-http-interceptors,Angular,Angular6,Angular Http Interceptors,我已经创建了一个角度拦截器来实现httpinterceptor。对于http GET请求,它工作正常。但POST请求失败 我的拦截器代码如下 import { Injectable, Injector } from '@angular/core'; import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpHeaders,HttpResponse } from '@angular/common/http'
import { Injectable, Injector } from '@angular/core';
import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpHeaders,HttpResponse } from '@angular/common/http';
import { Observable } from 'rxjs';
@Injectable()
export class MyHttpInterceptor implements HttpInterceptor {
constructor() { console.log('enter constructor');
}
intercept(
req: HttpRequest<any>,
next: HttpHandler
): Observable<HttpEvent<any>> {
console.log('entered interceptor')
const token = localStorage.getItem('sessiontoken') != null ? localStorage.getItem('sessiontoken') : 'notoken';
const authReq = req.clone({ headers: req.headers.set("Authorization", token) });
return next.handle(authReq);
}
}
在组件中,我导入了httpClient并使用了this.http.post
import { HttpClient } from '@angular/common/http';
我找到了答案,我将HttpClientModule导入到所有子组件的模块中。它应该仅在app.module.ts中导入。一旦我从每个文件中删除了所有HttpClientModule,问题就解决了,成功地将头绑定到每个请求。(不记得为什么我实际上不必要地导入了它,一些教程副本错误)
谢谢大家,干杯为什么在同一个提供者声明上有useValue和useClass?我删除了它,但仍然不起作用。。。这节省了我几个小时的工作。为什么会这样?我已经在功能模块中的
forRoot
静态方法中导入了它,并修复了它。那是我唯一拥有它的地方。也为我工作
import { HttpClient } from '@angular/common/http';