NestJS服务中未定义MailerService

我正在创建一个处理电子邮件的模块,我调用了 邮件服务 在我的Nest应用程序中。

mail.module.ts

import { Module } from '@nestjs/common';
import { MailService } from './mail.service';
import { MailerModule } from '@nestjs-modules/mailer';
import { ConfigModule, ConfigService } from '@nestjs/config';

@Module({
  imports: [
    MailerModule.forRootAsync({
      imports: [ConfigModule],
      useFactory: (configService: ConfigService) => ({
        ...configService.get('smtp'),
      }),
      inject: [ConfigService],
    }),
  ],
  providers: [MailService],
  exports: [MailService],
})
export class MailModule {}

mail.service.ts

import { MailerService } from '@nestjs-modules/mailer';
import { Injectable } from '@nestjs/common';
import { User } from 'src/modules/user/entities/user.entity';

Injectable();
export class MailService {
  constructor(private readonly mailerService: MailerService) {}

  async sendResetPasswordEmail(user: User, token: string) {
    const link = `https://example.com/reset-password/?token=${token}`;

    await this.mailerService.sendMail({
      to: user.email,
      // from: '"Support Team" <[email protected]>', // override default from
      subject: 'Math&Maroc Competition | Reset your password',
      template: './reset-password',
      context: {
        firstName: user.firstName,
        link,
      },
    });
  }
}

smtp.config.ts

import { registerAs } from '@nestjs/config';
import { HandlebarsAdapter } from '@nestjs-modules/mailer/dist/adapters/handlebars.adapter';

export default registerAs('smtp', () => ({
  transport: {
    service: 'Gmail',
    host: process.env.SMTP_HOST,
    port: 465,
    secure: true,
    auth: {
      user: process.env.SMTP_USER,
      pass: process.env.SMTP_PASSWORD,
    },
  },
  defaults: {
    from: '"No Reply" <[email protected]>',
  },
  template: {
    dir: process.cwd() + '/src/modules/mail/templates/',
    adapter: new HandlebarsAdapter(),
    options: {
      strict: true,
    },
  },
}));

我正在导入 邮件模块 在里面 app.module.ts ,并且smtp配置已正确获取。

当我尝试使用 mail.service.ts 在我的应用程序中,并且我调用函数 发送电子邮件 ,我得到这个错误:

显然Nest解决了 mailerService 依赖性,因为这方面没有错误,但它仍然是未定义的。谢谢你的真知灼见。