如何在typeorm中联合两个表？

import { Entity, PrimaryGeneratedColumn, Column, OneToMany } from "typeorm";
import { Order } from "./Order";

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

  @Column()
  name: string;

  @OneToMany(() => Order, order => order.user)
  orders: Order[];
}

import { Entity, PrimaryGeneratedColumn, Column, ManyToOne } from "typeorm";
import { User } from "./User";

@Entity()
export class Order {
  @PrimaryGeneratedColumn()
  id: number;

  @Column()
  amount: number;

  @ManyToOne(() => User, user => user.orders)
  user: User;
}

import { getRepository } from "typeorm";
import { User } from "./User";

const userRepository = getRepository(User);

const user = await userRepository.findOne(1, { relations: ["orders"] });
console.log(user.orders);