基本使用

import { Type } from 'class-transformer';
import { IsNumber, IsString, ValidateNested } from 'class-validator';
class Address {
  @IsString()
  addressName: string;
  @IsNumber()
  addressCode: number;
}
class User {
  @IsString()
  userName: string;
  @ValidateNested()
  @Type(() => Address)
  address: Address;
}点击复制复制失败已复制

import { IsNumber, IsString, IsOptional, IsNotEmpty, IsArray } from 'class-validator';
export class DataDto {
  @IsArray()
  @ArrayNotEmpty()
  @ValidateNested({ each: true })
  @Type(() => UserDto)
  readonly list: UserDto[]
}
export class UserDto {
  @IsString()
  @IsNotEmpty()
  name: string
  @IsNumber()
  age?: number
}