身份验证成功后,我需要更改区域设置。

语言环境解析器:

    <bean id="localeChangeInterceptor"
    class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
    <property name="paramName" value="lng" />
    </bean>

   <bean id="localeResolver"
     class="web.MyLocaleResolver">
   </bean>
   public class MyLocaleResolver extends AbstractLocaleResolver {

   private Locale default = Locale.ENGLISH;

       @Override
       public Locale resolveLocale(HttpServletRequest hsr) {
           return this.default;
       }

       @Override
       public void setLocale(HttpServletRequest hsr, HttpServletResponse hsr1,         Locale default) {
           this.default = default;
       }

   }

安全:
     <form-login login-page="/login"
          authentication-success-handler- ref="MySuccessAuthHandler"/>
     <beans:bean id="MySuccessAuthHandler" class="web.MySuccessfulAuthenticationHandler">
         <beans:property name="defaultTargetUrl" value="/index.htm"></beans:property>
     </beans:bean>
public class MySuccessfulAuthenticationHandler extends  SavedRequestAwareAuthenticationSuccessHandler  {
  @Override
  public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
        Authentication authentication) throws ServletException, IOException {

        super.onAuthenticationSuccess(request, response, authentication);
        RequestContextUtils.getLocaleResolver(request).setLocale(request, response, Locale.ENGLISH);
   }

}

当我尝试通过 RequestContextUtils 设置语言环境时,出现 NullPointer 异常。

最佳答案

LocaleResolverDispatcherServlet 在请求上下文中公开,而 AuthenticationSuccessHandler 在请求进入 DispatcherServlet 之前被触发(实际上,触发 SavedRequestAwareAuthenticationSuccessHandler 的请求永远不会进入 DispatcherServlet ,因为该处理程序执行重定向)。

因此,在这种情况下,您无法通过 LocaleResolver 访问 RequestContextUtils。您可以尝试将 LocaleResolver 显式注入(inject) AuthenticationSuccessHandler,例如,使用 Autowiring 。

关于java - Spring 安全性 + LocaleResolver,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/8026320/

10-09 20:49