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在这个章节，我们会将一些文本常量独立出一个资源文件

这样的话，可以方便这些文本常量被翻译成任意的语言

这种国际化的操作，我们一般命名为i18n

新建一个文件i18n.properties

webapp/i18n/i18n.properties (New)

showHelloButtonText=Say Hello
helloMsg=Hello {0}

接着我们将这些常量，绑定到Controller.js

controller/App.controller.js

sap.ui.define(["sap/ui/core/mvc/Controller","sap/m/MessageToast","sap/ui/model/json/JSONModel","sap/ui/model/resource/ResourceModel"
], (Controller, MessageToast, JSONModel, ResourceModel) => {"use strict";return Controller.extend("ui5.walkthrough.controller.App", {onInit() {// set data model on viewconst oData = {recipient : {name : "World"}};const oModel = new JSONModel(oData);this.getView().setModel(oModel);// set i18n model on viewconst i18nModel = new ResourceModel({bundleName: "ui5.walkthrough.i18n.i18n"});this.getView().setModel(i18nModel, "i18n");},onShowHello() {// read msg from i18n modelconst oBundle = this.getView().getModel("i18n").getResourceBundle();const sRecipient = this.getView().getModel().getProperty("/recipient/name");const sMsg = oBundle.getText("helloMsg", [sRecipient]);// show messageMessageToast.show(sMsg);}});
});

另外将view.xml中的常量文本替代

webapp/view/App.view.xml

<mvc:ViewcontrollerName="ui5.walkthrough.controller.App"xmlns="sap.m"xmlns:mvc="sap.ui.core.mvc"><Buttontext="{i18n>showHelloButtonText}"press=".onShowHello"/><Inputvalue="{/recipient/name}"description="Hello {/recipient/name}"valueLiveUpdate="true"width="60%"/>
</mvc:View>

Conventions

• The resource model for internationalization is called the i18n model.

• The default filename is i18n.properties.

• Resource bundle keys are written in (lower) camelCase.

• Resource bundle values can contain parameters like {0}, {1}, {2}, …

• Never concatenate strings that are translated, always use placeholders.

• Use Unicode escape sequences for special characters.