Files
PolyHermes/frontend/src/components/LanguageSwitcher.tsx
T
WrBug d0b454e7c8 fix: 修复前端语言切换时后端 header 未更新的问题
- 统一 localStorage key:LanguageSwitcher 同时保存到 i18n_language 和 i18nextLng
- 优化 API 请求拦截器:添加 getCurrentLanguage() 函数,优先从 localStorage 读取最新语言设置
- 支持兼容性:同时读取 i18n_language 和 i18nextLng(i18next 默认 key)
- 规范化语言格式:确保返回正确的语言代码(zh-CN, zh-TW, en)
2025-12-05 02:33:02 +08:00

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import { useState, useEffect } from 'react'
import { Select, Space } from 'antd'
import { GlobalOutlined } from '@ant-design/icons'
import { useTranslation } from 'react-i18next'
import { useMediaQuery } from 'react-responsive'
const LanguageSwitcher: React.FC = () => {
const { i18n } = useTranslation()
const isMobile = useMediaQuery({ maxWidth: 768 })
const [currentLang, setCurrentLang] = useState<string>(i18n.language || 'en')
useEffect(() => {
setCurrentLang(i18n.language || 'en')
}, [i18n.language])
const languages = [
{ value: 'zh-CN', label: '简体中文' },
{ value: 'zh-TW', label: '繁體中文' },
{ value: 'en', label: 'English' }
]
const handleChange = async (value: string) => {
setCurrentLang(value)
await i18n.changeLanguage(value)
// 保存到 localStorage(统一使用 i18n_language
localStorage.setItem('i18n_language', value)
// 同时保存到 i18nextLngi18next 默认使用的 key,用于兼容)
localStorage.setItem('i18nextLng', value)
// 刷新页面以应用 Ant Design 的 locale 和所有翻译
window.location.reload()
}
return (
<Space>
<GlobalOutlined style={{ color: '#fff', fontSize: isMobile ? '14px' : '16px' }} />
<Select
value={currentLang}
onChange={handleChange}
options={languages}
style={{
width: isMobile ? 100 : 120,
color: '#fff'
}}
dropdownStyle={{
minWidth: 120
}}
bordered={false}
size={isMobile ? 'small' : 'middle'}
/>
</Space>
)
}
export default LanguageSwitcher