OpenHarmonyOS JS dataStorage接口使用demo

原创

58李某 2022-08-29 15:02:55 ©著作权

文章标签 json Openharmony JS 文章分类 HarmonyOS 后端开发

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.js文件：

import dataStorage from '@ohos.data.storage';
import ability_featureAbility from '@ohos.ability.featureAbility';

export default {
    data: {
        path : '',
        title : '123',
    },
    onInit() {

    },
    InitDataStorage(){
        ability_featureAbility.getContext().getOrCreateLocalDir((err, value) => {
            this.path = value;
            console.log("fileIO begin")
            console.info("path = " + JSON.stringify(this.path))
        })
        dataStorage.getStorage(this.path + '/mystore', function (err, storage) {
            if (err) {
                console.info("Failed to get the storage. path: " + this.path + '/mystore');
                return;
            }
            storage.putSync('startup', 'auto');
            storage.flushSync();
        })
    },
    GetDataStorage(){
        let that = this;
        dataStorage.getStorage(this.path + '/mystore', function (err, storage){
            if (err) {
                console.info("Failed to get the storage. path: " + path + '/mystore');
                return;
            }
            storage.get('startup', 'default', function(err, value) {
                if (err) {
                    console.info("Failed to get the value of startup with err: " + err);
                    return;
                }
                console.info("The value of startup is " + value);
                console.info("The type of value is " + typeof(value))
                that.title = value;
            })
        })
    },
}