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我正在尝试根据当前文件从文件中创建一个用于可变RequestMapping的 URLResourcesLocale

我尝试使用，PlaceHolders但我知道它应该从Properties文件加载。除了我必须Bean在运行时加载它，因此它只会使用默认值加载一次，Locale所以即使更改了区域设置，它也会继续从默认值加载Locale>en_US

有任何想法吗 ？

我的尝试：

public class CustomPropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer {
    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
        setProperties(convertResourceBundleToProperties(ResourceBundle.getBundle("urls", LocaleContextHolder.getLocale())));
        super.postProcessBeanFactory(beanFactory);
    }
}

并在 a 中调用Bean：

@Bean
public CustomPropertyPlaceholderConfigurer CustomPropertyPlaceholderConfigurer(){
    return new CustomPropertyPlaceholderConfigurer();
}

资源urls_ab.properties：

url.controller1=test

控制器 ：

@RequestMapping(value = "/${url.controller1}", method = RequestMethod.GET)
public String dd(ModelMap model){   
    return "__front_container";
}
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1 回答 1

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当您更改支持您的 PropertyPlaceholderConfigurer 的属性文件时，您需要“刷新”您的应用程序以使更改生效。如果您使用 ConfigurableApplicationContext 作为您的上下文，那么您可以在您的上下文上调用刷新。挑战在于，在 Web 应用程序中，您将依赖于 web.xml 而不是直接依赖于上下文对象，因此刷新以加载新/更新的属性将需要重新启动应用程序......或经历许多不必要的麻烦。考虑以下是 Spring Webflow 应用程序中的示例。通过使用拦截器更新语言环境。：

public class MyLocaleChangeInterceptor extends org.springframework.web.servlet.i18n.LocaleChangeInterceptor {
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    Locale locale = (Locale) WebUtils.getSessionAttribute(request, LOCALE_SESSION_ATTRIBUTE_NAME);
    if (locale != null) {
        try {
            response.setLocale(locale);
        } catch (Exception ex) {
            response.setLocale(Locale.ENGLISH);
        }
    } else {
        response.setLocale(Locale.ENGLISH);
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
    }
    super.postHandle(request, response, handler, modelAndView);
}

}

 /** https://gist.github.com/jkuipers/3537965 Spring LocaleResolver that uses cookies but falls back to the HTTP Session when cookies are disabled*/
public class MyCookieLocaleResolver extends CookieLocaleResolver {
private SessionLocaleResolver sessionLocaleResolver = new SessionLocaleResolver();
@Override
protected Locale determineDefaultLocale(HttpServletRequest request) {
    return sessionLocaleResolver.resolveLocale(request);
}
@Override
public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {
    if (locale != null) {
        try {
            response.setLocale(locale);
        } catch (Exception ex) {
            response.setLocale(Locale.ENGLISH);
        }
    } else {
        response.setLocale(Locale.ENGLISH);
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
    }
    super.setLocale(request, response, locale);
    sessionLocaleResolver.setLocale(request, response, locale);
}
@Override
public void setDefaultLocale(Locale defaultLocale) {
    sessionLocaleResolver.setDefaultLocale(defaultLocale);
}

}

<!--Then the XML:-->
<bean id="localeChangeInterceptor" class="MyLocaleChangeInterceptor">
    <property name="paramName" value="lang"/>
</bean>
<!-- Saves a locale change using a cookie -->
<bean id="localeResolver" class="MyCookieLocaleResolver" >
    <property name="defaultLocale" value="en" />
</bean>


<!--Then Spring-webflow specific XML settings:-->
<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
    <property name="order" value="2"/>
    <property name="flowRegistry" ref="flowRegistry" />
    <property name="interceptors" >
        <list>
            <ref local="localeChangeInterceptor" />
        </list>
    </property>
    <property name="defaultHandler">
        <bean class="org.springframework.web.servlet.mvc.UrlFilenameViewController" />
    </property>
</bean>

如果使用 Spring MVC（没有 spring webflow），请参见此处以获得出色的解决方案：Spring MVC LocaleChangeInterceptor annotation based doesn't work

MyKong 也提供了很好的解决方案：http ://www.mkyong.com/spring-mvc/spring-mvc-internationalization-example/

于 2016-04-16T22:05:39.213 回答