HarmonyOS 鸿蒙Next：服务器返回的json数据，key是下划线的，如何转成对象时，变成驼峰的key

使用ohpm命令安装包：

ohpm install class-transformer

ohpm install reflect-metadata

安装之后，参考下方代码即可实现下划线转驼峰

import 'reflect-metadata';
import { Expose, instanceToPlain, plainToInstance, Type } from 'class-transformer';

class Test {
  [@Expose](/user/Expose)({ name: "my_hit" }) //1. 设置
  myHit: number = 0;
  [@Expose](/user/Expose)({ name: "meta_data" })
  [@Type](/user/Type)(() => AuthorMeta) //保证嵌套类型反序列化后可以正常转成目标class
  meta: AuthorMeta = new AuthorMeta();
}

class AuthorMeta {
  [@Expose](/user/Expose)({ name: 'focus_count' })
  focusCount: number = 10;
}

[@Entry](/user/Entry)
[@Component](/user/Component)
struct JSONIndex {
  build() {
    Column() {
      Button('click me')
        .onClick(() => {
          // 序列化示例
          let test = new Test();
          test.myHit = 100;

          let serializedData = instanceToPlain(test); // 2.转换
          let jsonstr = JSON.stringify(serializedData); //3. 输出
          console.info(`DZG test jsonstring: ${jsonstr}`);

          // 反序列化示例
          let deserTest: Test = JSON.parse(jsonstr);
          let deserData = plainToInstance(Test, deserTest);
          console.info(`DZG test instance value of myHit:${deserData.myHit}  metaData's focusCount:${deserData.meta.focusCount}`)
        })
    }
  }
}