问题描述
验证成功后，我需要更改语言环境设置.
i need to change locale settings after successful Authentication.
LocaleResolver:
LocaleResolver:
<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;
}
}
安全性:
<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设置区域设置时，出现NullPointer异常.
When i try to set locale by RequestContextUtils i get NullPointer Exception.
推荐答案
LocaleResolver在DispatcherServlet的请求上下文中公开，而AuthenticationSuccessHandler在请求进入DispatcherServlet之前被触发(实际上，触发了永远不会输入DispatcherServlet，因为此处理程序会执行重定向).
LocaleResolver is exposed in request context by DispatcherServlet, whereas AuthenticationSuccessHandler is fired before request enters DispatcherServlet (actually, request that fired SavedRequestAwareAuthenticationSuccessHandler never enters DispatcherServlet, because this handler performs a redirect).
因此，在这种情况下，您无法通过RequestContextUtils访问LocaleResolver.您可以尝试例如通过自动装配将LocaleResolver显式注入到AuthenticationSuccessHandler中.
Thus, you cannot access LocaleResolver via RequestContextUtils in this case. You can try to inject LocaleResolver into your AuthenticationSuccessHandler explicitly, for example, with autowiring.
这篇关于Spring Security + LocaleResolver的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！