UAS2.0_DEV_TEST/app/store/Navigation.js

Ext.define('uas.store.Navigation', {
    extend: 'Ext.data.TreeStore',
    alias: 'store.navigation',

    root: {
        expanded: true,
    },
    autoLoad: true,
    proxy: {
        type: 'ajax',
        url: 'resources/json/navigation.json',
        reader: {
            type: 'json'
        }
    }
});