package com.zy.common.i18n;
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import com.core.common.Cools;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import org.springframework.web.servlet.HandlerInterceptor;
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import jakarta.servlet.http.Cookie;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import java.util.Locale;
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@Component
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public class RequestLocaleInterceptor implements HandlerInterceptor {
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public static final String LANG_COOKIE_NAME = "wcs_lang";
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@Autowired
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private I18nMessageService i18nMessageService;
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
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Locale locale = i18nMessageService.resolveLocale(extractLocale(request));
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org.springframework.context.i18n.LocaleContextHolder.setLocale(locale);
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request.setAttribute("wcsLocale", locale);
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return true;
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}
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@Override
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public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
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org.springframework.context.i18n.LocaleContextHolder.resetLocaleContext();
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}
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private String extractLocale(HttpServletRequest request) {
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String locale = request.getParameter("lang");
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if (!Cools.isEmpty(locale)) {
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return locale;
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}
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locale = request.getHeader("X-Lang");
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if (!Cools.isEmpty(locale)) {
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return locale;
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}
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Cookie[] cookies = request.getCookies();
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if (cookies != null) {
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for (Cookie cookie : cookies) {
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if (LANG_COOKIE_NAME.equals(cookie.getName()) && !Cools.isEmpty(cookie.getValue())) {
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return cookie.getValue();
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}
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}
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}
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return request.getHeader("Accept-Language");
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}
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}
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