角5标头值没有正确追加[重复]

Question

我在angular service请求中追加了头部，但值没有正确追加，我创建了一个拦截器来添加头部，如下所示

@Injectable()
export class AddHeaderInterceptor implements HttpInterceptor {
  constructor() {}
  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {


    // Clone the request to add the new header
    const clonedRequest = req.clone({ headers: req.headers.set('tenantId', 'r 123') });

    // Pass the cloned request instead of the original request to the next handle
    return next.handle(clonedRequest);
  }
}

当我发送给服务器的值没有正确附加时，它显示像下图，值'r123'没有附加，我如何解决它？

报头图像

Answer 1

您是否在app.module.ts中添加了AddHeaderInterceptor。

// ...
providers: [
    // ...
    { provide: HTTP_INTERCEPTORS, useClass: AddHeaderInterceptor, multi: true },
    //...
]