一个网页实现中英文的切换就要用到我们的国际化.要实现国际化分为这么四步:
第一步:编写国际化配置文件，抽取页面需要显示的国际化消息
创建一个properties文件 login.properties 和一个login_zh_CN.properties注意这里的'_zh_CN不能改变!'
编写我们要国际化的值.
2.SpringBoot自动配置好了管理国际化资源文件的组件；
@ConfigurationProperties(prefix = "spring.messages") public class MessageSourceAutoConfiguration { /** * Comma-separated list of basenames (essentially a fully-qualified classpath * location), each following the ResourceBundle convention with relaxed support for * slash based locations. If it doesn't contain a package qualifier (such as * "org.mypackage"), it will be resolved from the classpath root. */ private String basename = "messages"; //我们的配置文件可以直接放在类路径下叫messages.properties； @Bean public MessageSource messageSource() { ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource(); if (StringUtils.hasText(this.basename)) { //设置国际化资源文件的基础名（去掉语言国家代码的） messageSource.setBasenames(StringUtils.commaDelimitedListToStringArray( StringUtils.trimAllWhitespace(this.basename))); } if (this.encoding != null) { messageSource.setDefaultEncoding(this.encoding.name()); } messageSource.setFallbackToSystemLocale(this.fallbackToSystemLocale); messageSource.setCacheSeconds(this.cacheSeconds); messageSource.setAlwaysUseMessageFormat(this.alwaysUseMessageFormat); return messageSource; }
springBoot帮我们配置好了国际化的配置,我们只需要在springBoot的配置文件中加入是在哪一个包下的-->spring.messages.basename=i18n.login
一般我们都会把国际化的配置放在i18n下.
3.去页面获取国际化的值
这里我们要注意在文件的配置中设置 把file现转成ASCALL码然后去识别读取不了会出现乱码的问题
然后在我们需要获取国际化的页面获取国际化的值
<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <meta name="description" content=""> <meta name="author" content=""> <title>Signin Template for Bootstrap</title> <!-- Bootstrap core CSS --> <link href="asserts/css/bootstrap.min.css" th:href="@{/webjars/bootstrap/4.3.1/css/bootstrap.css}" rel="stylesheet"> <!-- Custom styles for this template --> <link href="asserts/css/signin.css" th:href="@{/asserts/css/signin.css}" rel="stylesheet"> </head> <body class="text-center"> <form class="form-signin" action="dashboard.html"> <img class="mb-4" th:src="@{/asserts/img/bootstrap-solid.svg}" src="asserts/img/bootstrap-solid.svg" alt="" width="72" height="72"> <h1 class="h3 mb-3 font-weight-normal" th:text="#{login.tip}">Please sign in</h1> <label class="sr-only" th:text="#{login.username}">Username</label> <input type="text" class="form-control" placeholder="Username" th:placeholder="#{login.username}" required="" autofocus=""> <label class="sr-only" th:text="#{login.password}">Password</label> <input type="password" class="form-control" placeholder="Password" th:placeholder="#{login.password}" required=""> <div class="checkbox mb-3"> <label> <input type="checkbox" value="remember-me"/> [[#{login.remember}]] </label> </div> <button class="btn btn-lg btn-primary btn-block" type="submit" th:text="#{login.btn}">Sign in</button> <p class="mt-5 mb-3 text-muted">© 2017-2018</p> <a class="btn btn-sm" th:href="@{/login.html(l='zh_CN')}">中文</a> <a class="btn btn-sm" th:href="@{/login.html(l='en_US')}">English</a> </form> </body> </html>
效果：根据浏览器语言设置的信息切换了国际化；
原理:
@Bean @ConditionalOnMissingBean @ConditionalOnProperty(prefix = "spring.mvc", name = "locale") public LocaleResolver localeResolver() { if (this.mvcProperties .getLocaleResolver() == WebMvcProperties.LocaleResolver.FIXED) { return new FixedLocaleResolver(this.mvcProperties.getLocale()); } AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver(); localeResolver.setDefaultLocale(this.mvcProperties.getLocale()); return localeResolver; }
默认的就是根据请求头带来的区域信息获取Locale进行国际化
4.点击链接切换国际化
可以在连接上携带区域信息
public class MyLocaleResolver implements LocaleResolver { @Override public Locale resolveLocale(HttpServletRequest request) { String l = request.getParameter("l"); // 获取默认的区域信息 Locale locale=Locale.getDefault(); if(!StringUtils.isEmpty(l)){ String[] split = l.split("_"); locale= new Locale(split[0], split[1]); } return locale; } @Override public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) { } }
注意把我们的这个配置组件注册到spring的容器中来
@Bean public LocaleResolver localeResolver(){ return new MyLocaleResolver(); }
点击切换就可也切换中,英文了.