如何在Spring中获取当前Locale

Question

我使用这个方法

LocaleContextHolder.getLocale()

以切换语言环境(日语)，但它返回我英语(默认)。如何检索jp_JP区域设置?

Answer 1

//Return the Locale associated with the current thread,
// if any, or the   system default Locale else(English)   
LocaleContextHolder.getLocale();

所以首先你必须检查当前线程的Locale。如果你想在当前线程中设置Locale，那么使用下面的代码:

setLocale(Locale locale); LocaleContextHolder.getLocale() will return jp_JP locale

Answer 2

RequestContextUtils

这应该允许您获得请求的当前语言环境:

RequestContextUtils.getLocaleResolver(request).resolveLocale(request);

返回被DispatcherServlet绑定到请求的LocaleResolver。
@param request当前HTTP请求
@返回当前LocaleResolver，如果没有找到则返回{@code null}:

public static LocaleResolver getLocaleResolver(HttpServletRequest request) {
    return (LocaleResolver) request.getAttribute(DispatcherServlet.LOCALE_RESOLVER_ATTRIBUTE);
}

这将返回一个LocaleResolver，你可以从中加载区域设置。

LocaleContextHolder

或者正如Mohammad tanvirul islam所提到的:

LocaleContextHolder.getLocale();

你可以在这里查看文档:

1. RequestContextUtils : http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/servlet/support/RequestContextUtils.html

2. LocaleResolver : http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/servlet/LocaleResolver.html

3. LocaleContextHolder : http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/context/i18n/LocaleContextHolder.html

Answer 3

给出一个简单的例子。假设您的资源为:选择任意一个代码

 @Autowired
    private MessageSource messageSource;
@GetMapping(path = "/hello-world-I18N")
    public String helloWorldInternationalize() {
        return messageSource.getMessage("good.morning.message", null, 
            LocaleContextHolder.getLocale());
    }

@GetMapping(path = "/hello-world-I18N")
public String helloWorldInternationalize(@RequestHeader(name = "Accept-Header", required = false) Locale locale) {
    return messageSource.getMessage("good.morning.message", null, locale);
}

现在在请求与邮差发送报头作为:接受语言:US/FN等任何你想要的

配置一个LocaleResolver:

        @Bean
        public LocaleResolver localeResolver() {
            AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver();
            localeResolver.setDefaultLocale(Locale.US); // set default to US
            return localeResolver;
        } 
    

正在应用中。添加属性文件spring.messages。Basename =message//message是属性文件的基本名称。

在资源文件夹中添加更多文件名为:message_fr的文件。属性,message.properties然后在这里添加内容。像(good.morning。留言=你好)

Answer 4

有几种方法可以创建Locale对象。获取当前的Local对象。

Locale locale = LocaleContextHolder.getLocale();

或

Locale locale;

获取当前语言

Locale locale;
locale.getLanguage()
Locale locales = LocaleContextHolder.getLocale();
locales.getLanguage();