Angular http请求重试导致多次插入

import { Injectable } from '@angular/core';
import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent, HttpResponse, HttpErrorResponse } from '@angular/common/http';
import { Observable, throwError } from 'rxjs';
import { retry, catchError } from 'rxjs/operators';

@Injectable()
export class RetryInterceptor implements HttpInterceptor {
  private maxRetryAttempts = 3;
  private retryDelay = 1000;

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    return next.handle(request)
      .pipe(
        retry(this.maxRetryAttempts),
        catchError((error: HttpErrorResponse) => {
          if (error.status === 0) {
            // 请求未发送或网络错误，进行重试
            return this.retryRequest(request, next);
          }
          return throwError(error);
        })
      );
  }

  private retryRequest(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    return next.handle(request)
      .pipe(
        retry(this.maxRetryAttempts),
        catchError((error: HttpErrorResponse) => throwError(error))
      );
  }
}

import { NgModule } from '@angular/core';
import { HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common/http';
import { RetryInterceptor } from './retry.interceptor';

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