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';复制
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));
})复制
}复制
运行结果：
