Question

我有一个控制器：

Menu.Controller.js：

sap.ui.define([
       "sapit/ext/utils/BaseController",
       "sap/ui/model/json/JSONModel",
       "sap/ui/model/Sorter",
       "sap/ui/model/Filter",
       "sapit/nova/model/constants",
       "sapit/ nova /model/formatter",
       "sapit/ nova /util/Helper",
       "sapit/ nova /util/Validator",
       "sapit/ nova /util/ItemService"
     ], function(BaseController, JSONModel, Sorter, Filter, constants, formatter, Helper, Validator, ItemService) {
       "use strict";

       return BaseController.extend("sapit.nova.controller.Menu", {

             formatter: formatter,
             helper: new Helper(),
             itemService: new ItemService(),


             onInit: function() {
               this.fragmentProcess = sap.ui.xmlfragment("sapit.nova.view.fragment.Process", this);
               // attach events
               this.getRouter().attachRouteMatched(jQuery.proxy(this.onRouteMatched, this));
             },
             onRouteMatched: function(oEvent) {
                 var oPage = this.byId("menuProcessor");
                 var sRouteName = oEvent.getParameter("name");

                 if (sRouteName === "Menu") {
                   // show fragment
                   this.helper.clearFragment(oPage);
                   this.helper.showFragment(oPage, this.fragmentProcess);
                 }

我有相应的xml视图，如Menu.view.xml：

mvc:View controllerName="sapit.nova.controller.Menu" xmlns="sap.m" xmlns:mvc="sap.ui.core.mvc">
    <Page id="menuProcessor" title="{i18n>menuPageTitle}" showNavButton="false">

    </Page>
</mvc:View>

我的路由器配置是：

"routes": [{
    "pattern": "/admin",
    "name": "Main",
    "target": ["menu"]
  },

  "targets": {
    "menu": {
      "viewName": "Menu",
      "viewLevel": 1,
      "controlAggregation": "masterPages"
    }

问题是，当我运行此应用程序控件时，将转到menu.controller的onInit（），但它不会转到onRouteMatched，尽管它正在将路由器的实例附加到此视图。

每次运行此应用程序时，我都会在输入onInit（）后收到错误，其余代码不起作用且视图不会出现。

Uncaught (in promise) Error: Cannot instantiate object: "new" is missing!
    at constructor (sap-ui-core.js:640)
    at constructor (sap-ui-core.js:1601)
    at constructor (sap-ui-core.js:1571)
    at f (sap-ui-core.js:638)
    at f (sap-ui-core.js:284)
    at p (sap-ui-core.js:285)
    at _ (sap-ui-core.js:286)
    at Object.properties (sap-ui-core.js:286)
    at l (sap-ui-core.js:298)
    at B.getText (sap-ui-core.js:296)

在这方面，请你建议我。

谢谢！

Answer 1

从sap.ui.define中删除空格，这在加载Helper，Validator和ItemService时可能会出现问题

sap.ui.define([
        "sapit/ext/utils/BaseController",
        "sap/ui/model/json/JSONModel",
        "sap/ui/model/Sorter",
        "sap/ui/model/Filter",
        "sapit/nova/model/constants",
        "sapit/ nova /model/formatter",
        "sapit/ nova /util/Helper",
        "sapit/ nova /util/Validator",
        "sapit/ nova /util/ItemService"
    ],

Answer 2

您没有实例化您的片段。

试试这个：

this.fragmentProcess = new sap.ui.xmlfragment("sapit.nova.view.fragment.Process", this);

未捕获（承诺）：错误无法实例化对象new缺失

2 个答案: