david_bai
56 lines
2.0 KiB
TypeScript
56 lines
2.0 KiB
TypeScript
import { NextResponse } from 'next/server'
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import type { NextRequest } from 'next/server'
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import { i18n } from '@/constants/i18n-config'
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import { match as matchLocale } from '@formatjs/intl-localematcher'
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import Negotiator from 'negotiator'
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function getLocale(request: NextRequest): string {
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// 1. 获取请求中的 Accept-Language
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const negotiatorHeaders: Record<string, string> = {};
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request.headers.forEach((value, key) => (negotiatorHeaders[key] = value));
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const locales = i18n.locales;
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// 2. 使用 negotiator 获取所有支持的语言
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const languages = new Negotiator({ headers: negotiatorHeaders }).languages();
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try {
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// 3. 匹配最佳语言
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const locale = matchLocale(languages, locales, i18n.defaultLocale)
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return locale
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} catch (error) {
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return i18n.defaultLocale
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}
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}
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export function middleware(request: NextRequest) {
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const pathname = request.nextUrl.pathname;
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// 获取所有的查询参数
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const searchParams = request.nextUrl.searchParams;
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// 检查请求路径是否已包含语言前缀
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const pathnameIsMissingLocale = i18n.locales.every(
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(locale) => !pathname.startsWith(`/${locale}/`) && pathname !== `/${locale}`
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);
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// 如果路径中没有语言前缀,则重定向到带有语言前缀的路径
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if (pathnameIsMissingLocale) {
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const locale = getLocale(request);
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// 创建新的 URL，保留原有的查询参数
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const newUrl = new URL(`/${locale}${pathname}`, request.url);
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// 将原有的查询参数复制到新 URL
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searchParams.forEach((value, key) => {
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newUrl.searchParams.set(key, value);
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});
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return NextResponse.redirect(newUrl);
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}
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}
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export const config = {
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// 排除 public 文件、api 路由和 sitemap 相关路由
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//排除了常见的静态资源文件扩展名（如 .png, .jpg, .gif 等），确保这些路径不会被中间件捕获
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matcher: [
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'/((?!api|_next/static|_next/image|favicon.ico|sitemap.xml|robots.txt|\\.png$|\\.jpg$|\\.jpeg$|\\.gif$|\\.svg$).*)',
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],
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}; |