spring-boot国际化_language =-优快云博客

本文介绍了如何在Spring Boot中实现国际化，包括配置国际化文件、设置默认语言、创建自定义的`MyLocaleResolver`解析器以及在页面中切换语言。示例展示了`index.html`首页模板、`application.properties`配置、国际化资源文件以及`MyMvcConfig`配置类的实现。通过这些设置，用户可以在访问时通过URL参数选择不同的语言环境。

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LocaleResolver，用于设置当前会话的默认的国际化语言。

首页模板

<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" 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>hi,spring-boot i18n</title>
      <!-- Bootstrap core CSS -->
      <link th:href="@{/css/bootstrap.min.css}" rel="stylesheet">
      <!-- Custom styles for this template -->
      <link th:href="@{/css/signin.css}" rel="stylesheet">
   </head>

   <body class="text-center">
      <form class="form-signin" action="dashboard.html">
         <img class="mb-4" th:src="@{/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" th:placeholder="#{login.username}" required="" autofocus="">
         <label class="sr-only" th:text="#{login.password}">Password</label>
         <input type="password" class="form-control" 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">[[#{login.btn}]]</button>
         <p class="mt-5 mb-3 text-muted">© 2017-2018</p>
         <a class="btn btn-sm" th:href="@{/index.html(l='zh_CN')}">中文</a>
         <a class="btn btn-sm" th:href="@{/index.html(l='en_US')}">English</a>
      </form>

   </body>

</html>

配置文件

application.properties

#国际化配置文件位置
spring.messages.basename=i18n/login

pom依赖

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-test</artifactId>
</dependency>

配置国际化文件

login.tip=请登录
login.username=用户名
login.password=密码
login.remember=记住我
login.btn=登录

login_zh_CN.properties

login.tip=请登录
login.username=用户名
login.password=密码
login.remember=记住我
login.btn=登录

login_en_US.properties

login.tip= please sign in
login.username=username
login.password=password
login.remember=remember me
login.btn= sign in

自定义国际化组件LocaleResolver

package com.jonny.springboot.web.config;

import org.springframework.util.StringUtils;
import org.springframework.web.servlet.LocaleResolver;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Locale;


//自定义国际化解析器
public class MyLocaleResolver implements LocaleResolver {

    //解析请求
    @Override
    public Locale resolveLocale(HttpServletRequest request) {
        String language = request.getParameter("l");
        //如果没有就使用默认的
        Locale locale = Locale.getDefault();
        //如果请求的链接携带了国际化参数
        if(!StringUtils.isEmpty(language)){
            //zh_CN  国家 地区
            String[] split = language.split("_");
            locale =  new Locale(split[0],split[1]);
        }
        return  locale;
    }

    @Override
    public void setLocale(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Locale locale) {

    }
}

将自定义国际化组件注册到spring容器，@Bean

package com.jonny.springboot.web.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class MyMvcConfig implements WebMvcConfigurer {

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        //首页
        registry.addViewController("/").setViewName("index.html");
        registry.addViewController("/index.html").setViewName("index.html");
    }


    //自定义国际化组件生效
    @Bean
    public LocaleResolver localeResolver(){
        return new MyLocaleResolver();
    }
}

访问 http://localhost:8080/index.html?l=en_US