store.load（）没有触发http请求（ExtJS 5）

Question

在ExtJs 5中，我从控制器尝试从视图调用网格商店中的store.load（），具有以下配置。我到达了store.load（）回调，但记录为空，Chrome开发人员工具未显示任何HTTP请求。

商店

Ext.define('vfw.view.carrierpull.CarrierPullStore',{
    extend: 'Ext.data.Store',
    storeId: 'carrierPullStore',
    model: 'vfw.view.carrierpull.CarrierPullModel',
    pageSize: 25,
    remoteFilter: true,
    remoteSort: true,
    remoteGroup: true,
    simpleFilter: false,
    simpleSort: false,
    autoFilter: false,
    proxy: {
        type: 'ajax',
        url: 'getCarrierPull',
        filterParam: 'filters',
        limitParam: 'pageSize',
        paramsAsJson: true,
        actionMethods: {
            create: 'POST',
            read: 'POST',
            update: 'POST',
            destroy: 'POST'
        },
        headers: {
            'Content-Type': 'application/json',
            'Accept': 'application/json'
        },
        reader: {
            type: 'json',
            rootProperty: 'data',
            totalProperty: 'totalrows'
        },
        writer: {
            type: 'json',
            allowSingle: true
        }
    }
});

网格

{
    title: 'List',
    layout: 'fit',
    items: [ {// Ext.create('Ext.grid.Panel',{
        xtype: 'grid',
        title: 'SKU',
        reference: 'mainGrid',
        selType: 'checkboxmodel',
        selModel: {
            checkOnly: true,
            injectCheckbox: 0
        },
        viewConfig: {
            enableTextSelection: true
        },
        store: Ext.data.StoreManager.lookup('carrierPullStore'),
        bufferedRenderer: false,
        columns: [
            { text: 'Ship Via',  dataIndex: 'shipvia' },
            { text: 'Ship Via Description',  dataIndex: 'shipvia' },
            { text: 'Pull Trailer Code',  dataIndex: 'pullTrlrCode' },
            { text: 'Ship Via',  dataIndex: 'shipvia' },
            { text: 'Pull Time',  dataIndex: 'pullTime' },
            { text: 'Ship Via',  dataIndex: 'shipvia' },
            { text: 'Ship to Zip',  dataIndex: 'shiptoZip' }
        ],
     // paging bar on the bottom
        bbar: { // Ext.create('Ext.toolbar.Paging', {  // PagingToolbar', {
            xtype: 'pagingtoolbar',
            store: Ext.data.StoreManager.lookup('carrierPullStore'),
            pageSize: 25,
            displayInfo: true,
            displayMsg: 'Displaying items {0} - {1} of {2}',
            emptyMsg: "No items to display",
            items:[
                '-', {
                text: 'Show Preview',
                //pressed: pluginExpanded,
                enableToggle: true,
                toggleHandler: function(btn, pressed) {
                    var preview = Ext.getCmp('gv').getPlugin('preview');
                    preview.toggleExpanded(pressed);
                }
            }]
        }

    }
    ]}

这是应该触发http请求的控制器代码：

onList: function () {
    var st = this.lookupReference('mainGrid').getStore();
    console.debug('loading store: ' , st);  // I see the store object
    st.reload({callback: function(records,options,success) {
        console.debug(records,options);  // I reach here.  Records is empty, options is populated
    }});
},

*的 修改 *

模型

Ext.define('vfw.view.carrierpull.CarrierPullModel', {
    extend: 'Ext.app.ViewModel',

    alias: 'viewmodel.carrierpull',

    data: {
        name: 'Hello World'
    }

    //TODO - add data, formulas and/or methods to support your view
});