HarmonyOS HSP依赖HAP相关变量会重新初始化

在HSP模块中依赖了底层HAR中通过export const xxx = new xxx() 来初始化的一个类，发现在hsp加载时，该类会重新初始化，har则不会，是否有办法使hsp也获取到同一个变量？

HarmonyOS

zxjiu

2024-12-23 15:13:27

616浏览

回答 1

按赞同

按时间

FengTianYa

推荐使用新模块@ohos.data.preferences，@ohos.data.storage，该模块不再维护

文档地址：

https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-data-preferences-V5

单例经过验证也会重新初始化

class GlobalContext {
  private constructor() {}
  private static instance: GlobalContext;
  private  num:number  = 0;
  private _objects = new Map<string, Object>();

  public static getContext(): GlobalContext {
    if (!GlobalContext.instance) {
      GlobalContext.instance = new GlobalContext();
      console.log("success打印成功")
    }
    return GlobalContext.instance;
  }

  getObject(value: string): Object | undefined {
    return this._objects.get(value);
  }

  setObject(key: string, objectClass: Object): void {
    this._objects.set(key, objectClass);
  }
  log(){
    this.num ++;
    console.log(`num:${this.num}`)
  }
}
export const  global = GlobalContext.getContext();
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.

log输出：

07-08 18:32:30.179   5621-5621    A03d00/JSAPP                   pid-5621              I     22222
07-08 18:32:30.180   5621-5621    A03d00/JSAPP                   pid-5621              I     22222
07-08 18:32:32.756   5621-5621    A03d00/JSAPP                   com.examp...lication  I     hsp:xxxxxx
07-08 18:32:32.756   5621-5621    A03d00/JSAPP                   com.examp...lication  I     num:1
07-08 18:32:38.461   5621-5621    A03d00/JSAPP                   com.examp...lication  I     har:xxxxxx
07-08 18:32:38.461   5621-5621    A03d00/JSAPP                   com.examp...lication  I     num:1
1.
2.
3.
4.
5.
6.