nestjs如何使用typeorm

默认你有点nestjs基础

第一步安装

 npm add @nestjs/typeorm typeorm mysql2

第二步

 imports: [TypeOrmModule.forRoot({
    type:'mysql',
    host:'',
    port:3306,
    username:'',
    password:'',
    database:'',
    entities:[User,User1],
    synchronize:true
  }), UsersModule, Users1Module],

UsersModule是我加的模块，他自己加上去的


第三步，建立表

import { Column,Entity,PrimaryGeneratedColumn } from "typeorm";

@Entity({name:'users'})
export class User{
    @PrimaryGeneratedColumn({type:'bigint'})
    id:number

    @Column({unique:true})
    username:string;

    @Column()
    password:string;

    @Column()
    createAt:Date;

    @Column({nullable:true})
    authStrategy:string
}

第四步，使用

第二部分
如何在server使用

 service.ts

import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { User } from 'src/typeorm/entities/User';
import { CreateUserParams } from 'src/utils/types';
import { Repository } from 'typeorm';

@Injectable()
export class UsersService {
    constructor(
        @InjectRepository(User) private userRepository:Repository<User>,
    ){}
    findUsers(){
      return  this.userRepository.find()
    }

    createUser(userDetails:CreateUserParams){
        const newUser=this.userRepository.create({...userDetails,createAt:new Date()})
        return this.userRepository.save(newUser);
    }
}