关于nestjs:NestJS-校验数据类型

记录当NestJS的body申请体是数组对象时，dto的应用：

dto.ts:

import { IsNumber, Min, IsNotEmpty, IsOptional, IsString } from 'class-validator';export class UserDto {  @IsNotEmpty()  @IsString()  readonly name!: string;  @IsNotEmpty()  @IsNumber()  @Min(0)  readonly age!: number;  @IsNotEmpty()  @IsString()  readonly city!: string;  @IsOptional()  @IsString()  readonly description?: string;}

controller.ts

import {  UserDto } from "./dto";import {  Controller,  Post,  Body,  ParseArrayPipe} from "@nestjs/common";@Controller("/")export class TestController { @Post("test/dto")  public async userInfo(    @Body(      new ParseArrayPipe({        items: UserDto,      }))    data: UserDto[]  ) {    return 'request success'  }} 

成果：
error:

success