在Angular 2中获取X-CSRF-TOKEN

import { Injectable } from '@angular/core';
import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable()
export class CsrfInterceptor implements HttpInterceptor {
  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const csrfToken = this.getCSRFToken(); // 获取CSRF Token的方法，可以根据实际情况进行实现

    const modifiedReq = req.clone({
      headers: req.headers.set('X-CSRF-TOKEN', csrfToken)
    });

    return next.handle(modifiedReq);
  }

  private getCSRFToken(): string {
    // 在这里获取CSRF Token的逻辑，可以从Cookie、响应头等地方获取
    // 返回获取到的CSRF Token
  }
}

import { NgModule } from '@angular/core';
import { HTTP_INTERCEPTORS } from '@angular/common/http';
import { CsrfInterceptor } from './csrf.interceptor';

@NgModule({
  providers: [
    {
      provide: HTTP_INTERCEPTORS,
      useClass: CsrfInterceptor,
      multi: true
    }
  ]
})
export class AppModule { }