基于ng-alain做国际化

最新推荐文章于 2024-09-26 08:36:47 发布

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最新推荐文章于 2024-09-26 08:36:47 发布 · 973 阅读

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#typescript

本文档详细介绍了如何基于ng-alain实现应用的国际化。首先，需要在package.json中添加ngx-translate核心模块及其http-loader，并通过npm安装。接着，修改app.module.ts导入并配置i18n模块，创建i18n.service.ts以及StartupService.ts来加载语言包。然后，在header组件中引用HeaderI18nComponent，并创建对应语言的资源文件如en-US.json、ja-JP.json和zh-CN.json。

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1.下载需要下载的包

在package.json文件的dependencies下加入
“@ngx-translate/core”: “^13.0.0”,
“@ngx-translate/http-loader”: “^6.0.0”,
在终端输入npm install 下载这两个模块

2.加载支持i18n模块

2-1. 修改app.module.ts

加入加载i18n语言文件的代码：

import { ALAIN_I18N_TOKEN } from '@delon/theme';
import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
import { TranslateHttpLoader } from '@ngx-translate/http-loader';
import { I18NService } from './core/i18n/i18n.service';

// 加载i18n语言文件
export function I18nHttpLoaderFactory(http: HttpClient): TranslateHttpLoader {
  return new TranslateHttpLoader(http, `/assets/i18n/`, '.json');
}
const I18NSERVICE_MODULES = [
  TranslateModule.forRoot({
    loader: {
      provide: TranslateLoader,
      useFactory: I18nHttpLoaderFactory,
      deps: [HttpClient],
    },
  }),
];

const I18NSERVICE_PROVIDES = [{ provide: ALAIN_I18N_TOKEN, useClass: I18NService, multi: false }];

在@NgModule修改providers

  providers: [...LANG_PROVIDES, ...INTERCEPTOR_PROVIDES, ...I18NSERVICE_PROVIDES, ...APPINIT_PROVIDES],

… 在src/app/i18n/下创建i18n.service.ts

import {
   
    Platform } from '@angular/cdk/platform';
import {
   
    registerLocaleData } from '@angular/common';
import ngEn from '@angular/common/locales/en';
import ngZh from '@angular/common/locales/zh';
import ngJaJp from '@angular/common/locales/ja';
import {
   
    Injectable } from '@angular/core';
import {
   
   
  AlainI18NService,
  DelonLocaleService,
  en_US as delonEnUS,
  SettingsService,
  zh_CN as delonZhCn,
  ja_JP as delonJaJp,
} from '@delon/theme';
import {
   
    TranslateService } from '@ngx-translate/core';
import {
   
    enUS as dfEn, zhCN as dfZhCn, ja as dfJaJp } from 'date-fns/locale';
import {
   
    NzSafeAny } from 'ng-zorro-antd/core/types';
import {
   
    en_US as zorroEnUS, NzI18nService, zh_CN as zorroZhCN, ja_JP as zorroJaJp } from 'ng-zorro-antd/i18n';
import {
   
    BehaviorSubject, Observable } from 'rxjs';
import {
   
    filter } from 'rxjs/operators';

interface LangData {
   
   
  abbr: string;
  text: string;
  ng: NzSafeAny;
  zorro: NzSafeAny;
  date: NzSafeAny;
  delon: NzSafeAny;
}

const DEFAULT = 'zh-CN';
const LANGS: {
   
    [key: string]: LangData } = {
   
   
  'zh-CN': {
   
   
    text: '简体中文',
    ng: ngZh,
    zorro: zorroZhCN,
    date: dfZhCn,
    delon: delonZhCn,
    abbr: '🇨🇳',
  },
  'ja-JP': {
   
   
    text: '日本語',
    ng: ngJaJp,
    zorro: zorroJaJp,
    date: dfJaJp,
    delon: delonJaJp,
    abbr: 'Ja',
  },
  'en-US': {
   
   
    text: 'English',
    ng: ngEn,
    zorro: zorroEnUS,
    date: dfEn,
    delon: delonEnUS,
    abbr: '🇬🇧',
  },
};

@Injectable({
   
    providedIn: