package com.ruoyi.common.filter;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.context.i18n.LocaleContextHolder;
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import org.springframework.web.servlet.HandlerInterceptor;
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import org.springframework.web.servlet.ModelAndView;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.util.Locale;
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@Slf4j
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public class MyI18nInterceptor implements HandlerInterceptor {
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
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final String key = "language";
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//String language = "en_US";
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String language = "zh_CN";
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//String language = request.getHeader(key);
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// 前端传递的language必须是zh-CN格式的，中间的-必须要完整，不能只传递zh或en
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log.debug("当前语言={}",language);
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Locale locale = new Locale(language.split("_")[0],language.split("_")[1]);
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// 这样赋值以后，MessageUtils.message方法就不用修改了
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LocaleContextHolder.setLocale(locale);
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return true;
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}
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/**
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* 请求处理之后进行调用，但是在视图被渲染之前（Controller方法调用之后）
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*/
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@Override
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public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
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}
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/**
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* 在整个请求结束之后被调用，也就是在DispatcherServlet 渲染了对应的视图之后执行（主要是用于进行资源清理工作）
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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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}
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}
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