如何在NestJS中拆卸MikroOrm

npm install --save @mikro-orm/core @mikro-orm/nestjs

import { Module } from '@nestjs/common';
import { MikroOrmModule } from '@mikro-orm/nestjs';
import { AppController } from './app.controller';
import { AppService } from './app.service';

@Module({
  imports: [
    MikroOrmModule.forRoot({
      // MikroOrm的配置选项
    }),
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

import { Entity, PrimaryKey, Property } from '@mikro-orm/core';

@Entity()
export class User {
  @PrimaryKey()
  id!: number;

  @Property()
  name!: string;

  // 其他属性...
}

import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@mikro-orm/nestjs';
import { EntityRepository } from '@mikro-orm/core';
import { User } from './user.entity';

@Injectable()
export class UserService {
  constructor(
    @InjectRepository(User)
    private readonly userRepository: EntityRepository<User>,
  ) {}

  // 使用this.userRepository进行数据库操作...
}

import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@mikro-orm/nestjs';
import { EntityRepository } from '@mikro-orm/core';
import { User } from './user.entity';

@Injectable()
export class UserService {
  constructor(
    @InjectRepository(User)
    private readonly userRepository: EntityRepository<User>,
  ) {}

  async findAll(): Promise<User[]> {
    return this.userRepository.findAll();
  }

  async findById(id: number): Promise<User | null> {
    return this.userRepository.findOne({ id });
  }

  async createUser(user: User): Promise<User> {
    return this.userRepository.persist(user).flush();
  }

  // 其他数据库操作方法...
}