自定义国际化

1. 引入 vue-i18n 插件 pnpm install vue-i18n@next

2. 页面添加语言文件目录，添加自定义的语言文件

3.语言目录里添加 index.ts， 内容如下

import { createI18n } from "vue-i18n";

// 自定义语言文件
import zhCN from "@/locales/zh-CN";
import en from "@/locales/en";

const language = (navigator.language || 'en').toLocaleLowerCase() // 这是获取浏览器的语言
const i18n = createI18n({
  legacy: false, // 是否使用 composition API 模式
  locale: localStorage.getItem('locales') || language.split('-')[0] || 'zhCN', // 首先从缓存里拿，没有的话就用浏览器语言， "zhCN",
  fallbackLocale: 'zhCN', // 设置备用语言
  messages: {
    zhCN,
    en
  }
});

export default i18n;

4. main.ts 中注册

import i18n from "./plugins/vueI18n";
app.use(i18n);

页面模板中可直接通过 $t('xxx')来实现显示语言

5.修改语言 修改 vue-i18n 提供的 locale 变量

<script lang='ts' setup>
import { useI18n } from "vue-i18n";
const { locale } = useI18n({ useScope: "global" });
// 切换语言
const onMenuSelect = (key: string, keyPath: string[]) => {
  if (key == "lan-zh") {
    locale.value = "zhCN";
    saveLocales(locale.value);
    localsChangedNotify(locale.value);
  } else if (key == "lan-en") {
    locale.value = "en";
    saveLocales(locale.value);
    localsChangedNotify(locale.value);
  }
};
</script>

elementPlus 国际化

1. App.vue

使用 elementPlus 的 el-config-provider 进行最外层包裹

<template>
  <el-config-provider :locale="locale">
    <router-view />
  </el-config-provider>
</template>
<script lang="ts" setup>

import { onMounted, ref, computed } from "vue";

import zhCn from "element-plus/es/locale/lang/zh-cn";
import en from "element-plus/es/locale/lang/en";

import { languageSet } from "@/plugins/vueI18n";


const language = ref(languageSet()); // 初始默认值
const locale = computed(() => (language.value === "zhCN" ? zhCn : en));

// 监听语言的切换，设置 language 值，从而实现 elementPlus 组件语言的切换
window.addEventListener("onLocalsChanged", (e: any) => {
  language.value = e.detail;
});
</script>

languageSet 函数如下

export const languageSet = () => {
  if (localStorage.getItem("locales")) {
    return localStorage.getItem("locales");
  }
  return localStorage.setItem("locales", "zhCN");
}

2. 语言切换的地方，添加自定义事件派送

const localsChangedNotify = (value: string) => {
  const event = new CustomEvent("onLocalsChanged", { detail: value });
  window.dispatchEvent(event);
};

// 切换语言
const onMenuSelect = (key: string, keyPath: string[]) => {
  if (key == "lan-zh") {
    locale.value = "zhCN";
    saveLocales(locale.value);
    localsChangedNotify(locale.value);
  } else if (key == "lan-en") {
    locale.value = "en";
    saveLocales(locale.value);
    localsChangedNotify(locale.value);
  }
};