鸿蒙-简单实现读取资源库（rawfile）自定义json文件

需求：读取工程中json文件并转成string

步骤一：导入库

import common from '@ohos.app.ability.common';
import util from '@ohos.util';

步骤二：resourcemanager 管理类读取本地host_config.json

aboutToAppear(){

  let context = getContext(this) as common.UIAbilityContext;
  let resourcemanager = context.resourceManager;
  resourcemanager.getRawFileContent("host_config.json").then(value =>{
    let rawFile = value;
    let textdecoder = util.TextDecoder.create('utf-8', { ignoreBOM : true })
    let retStr = textdecoder.decodeWithStream( rawFile , {stream: false});

    console.info('host_config打印: ' + JSON.stringify(retStr));

  })

}

运行结果：