vue3 使用 i18n

安装

官网：https://vue-i18n.intlify.dev/api/general.html

pnpm add vue-i18n@9

使用

// @/locale/index.ts

import appConfig from "@/configure/app.config.ts";
import {nextTick} from 'vue'
import type {Ref} from 'vue'
import {createI18n} from 'vue-i18n'
import type {I18n, Locale} from 'vue-i18n'


const DEFAULT_LANG: string = appConfig.defaultLanguage;

const i18n = createI18n({
    legacy: false, // 禁用传统模式，使用 composition api mode
    locale: DEFAULT_LANG,
    messages: {},
    fallbackLocale: DEFAULT_LANG,
    globalInjection: true,
});

const loadLocaleMessages = async (i18n: I18n, locale: Locale) => {
    const messages = await import(`./lang/${locale}/index.ts`)
    i18n.global.setLocaleMessage(locale, messages.default)

    if (i18n.mode === "legacy") {
        i18n.global.locale = locale;
    } else {
        (i18n.global.locale as Ref<Locale>).value = locale;
    }
    document.querySelector('html').setAttribute('lang', locale)

    return nextTick();
}

loadLocaleMessages(i18n, DEFAULT_LANG)

export default i18n;

// @/locale/zh-CN/index.ts

const menu = {
    "account": "用户菜单",
}

export default {
    ...menu
}

// @/main.ts

import i18n from "@/locale"

// const app = createApp(App)...
app.use(i18n)

// @/view/demo/demo.vue

<template>
    <h1>{{ t('account') }}</h1>
<template>

<script setup lang="ts">
import {useI18n} from "vue-i18n";

const {t} = useI18n()
</script>