SpringBoot 国际化配置
一、配置LocaleResolver
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| @Configuration
public class LocaleConfig extends WebMvcConfigurerAdapter{
@Bean
public LocaleResolver localeResolver() {
SessionLocaleResolver slr = new SessionLocaleResolver();
slr.setDefaultLocale(Locale.CHINA);
return slr;
}
@Bean
public LocaleChangeInterceptor localeChangeInterceptor() {
LocaleChangeInterceptor lci = new LocaleChangeInterceptor();
lci.setParamName("lang");
return lci;
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(localeChangeInterceptor());
super.addInterceptors(registry);
}
}
|
二、创建国际化文件
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| messages.properties
messages_zh_CN.properties
messages_en_US.properties
messages_ja_JP.properties
...
内容如下：
top.lrshuai.text=简体
top.lrshuai.name=帅哥
top.lrshuai.age=20
message=国际化
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三、配置国际化文件路径
在application.yml 配置国际化文件所在位置
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| spring:
messages:
encoding: UTF-8
cache-seconds: 1
basename: static/i18n/messages
|
四、前端页面调用国际化
在Thymeleaf模板中通过 th:text与#{国际化文件的KEY} 即可使用国际化
前端需要传的语言参数为lang示例如下：
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| <body>
<div class="language">
<div th:switch="${#locale.getCountry()}">
<span th:case="'CN'" >简体中文</span>
<span th:case="'TW'" >繁體中文</span>
<span th:case="'US'" >English</span>
<span th:case="'JP'" >日语</span>
<span th:case="'KR'" >韩语</span>
</div>
<ul class="langBody">
<li><a href="?lang=zh_CN">简体中文</a></li>
<li><a href="?lang=zh_TW">繁體中文</a></li>
<li><a href="?lang=en_US">English</a></li>
<li><a href="?lang=ja_JP">日语</a></li>
<li><a href="?lang=ko_KR">韩语</a></li>
</ul>
</div>
<div class="language">
<div th:text="#{top.lrshuai.text}">asdfSW</div>
<div th:text="#{top.lrshuai.name}">asdf</div>
<div th:text="#{top.lrshuai.age}">asdf</div>
<span th:text="#{message}">ffff</span><br/>
</div>
</body>
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五、接口返回值国际化
通过前端传上来的语言，我们接口返回值需要通过转上来的语言，返回对应的数据。
在Spring中,我们只需要实现ResponseBodyAdvice<T> 接口即可，代码如下
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|
@ControllerAdvice(basePackages={"top.lrshuai.controller"})
public class I18nResponseAdvice implements ResponseBodyAdvice<Object> {
protected Logger log = LoggerFactory.getLogger(this.getClass());
@Override
public boolean supports(MethodParameter returnType,
Class<? extends HttpMessageConverter<?>> converterType) {
return true;
}
@Override
public Object beforeBodyWrite(Object body, MethodParameter returnType,
MediaType selectedContentType,
Class<? extends HttpMessageConverter<?>> selectedConverterType,
ServerHttpRequest request, ServerHttpResponse response) {
try {
HttpServletRequest req = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
String value = getMessage(req, "name");
} catch (Exception e) {
e.printStackTrace();
log.error("返回值国际化拦截异常",e);
}
return body;
}
public String getMessage(HttpServletRequest request, String key){
RequestContext requestContext = new RequestContext(request);
String value = requestContext.getMessage(key);
return value;
}
}
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在上面的代码中 getMessage(HttpServletRequest request, String key) 就是获取国际化的值，通过key 获取对应国际化的文件值
代码地址
