HarmonyOS 后台返回的实体类有重命名的写法吗

可以使用JSON+第三方库class-transformer实现，参考代码如下：

//ohpm install class-transformer安装库
import { Expose } from 'class-transformer';
//定义一个class接收数据
export class User {
  constructor() {
    this.id= 0
    this.firstName= ""
    this.lastName= ""
  }

  @Expose({ name: 'uid' })
  id: number;
  firstName: string;
  lastName: string;

  @Expose({ name: 'fullName' })
  getFullName() {
    return this.firstName + ' ' + this.lastName;
  }
}

//测试方法
jsonTest() {
  let json:string = "{\"uid\": 10,\"firstName\": \"CCC\",\"lastName\": \"Khudoiberdiev\"}"

  let fromPlainUser:User = JSON.parse(json)
  let user:User = plainToInstance(User,fromPlainUser)

  console.info(JSON.stringify(user))
  // 输出{"id":10,"firstName":"CCC","lastName":"Khudoiberdiev"}
  console.info(JSON.stringify(instanceToPlain(user,{})))
  //输出{"uid":10,"firstName":"CCC","lastName":"Khudoiberdiev","fullName":"CCC Khudoiberdiev"}
}