springboot实现语言切换

蔚落 2023-06-01 12:50 8阅读 0赞

1.编写国际化配置文件  
![在这里插入图片描述][2019100316304426.png]  
配置文件中定义与语言相关的数据  
例如login\_en\_US.properties

#英文
    login.btn=Sign In 
    login.password=Password
    login.Remember=Remember Me 
    login.tip=Please sign in
    login.username=UserName

2.页面使用thymeleaf的\#\{\}获取国际化内容  
例如th:text="\#\{login.tip\}"

<h1 class="h3 mb-3 font-weight-normal" th:text="#{login.tip}">Please sign in</h1>

3.页面传递信息  
传递语言和国家信息(Locale构造方法的参数)

<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>

4.编写LocaleResolver获取区域信息对象Locale

public class MyLocaleResolver implements LocaleResolver { 
        @Override
        //login.html?l=zh_CN zh表示中文 CN表示中国
        public Locale resolveLocale(HttpServletRequest request) { 
            //l = "zh_CN"
            String l = request.getParameter("l");
            Locale locale = Locale.getDefault();
            if(!StringUtils.isEmpty(l)){ 
                String[] s = l.split("_");
                //Locale(language,country)
                locale = new Locale(s[0],s[1]);
            }
            return  locale;
        }
    
        @Override
        public void setLocale(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Locale locale) { 
        }
    }

5.注入MyLocalResolver替代容器中的LocaleResolver

@Configuration
    public class Myconfig { 
        @Bean
        public LocaleResolver localeResolver() { 
            return new MyLocaleResolver();
        }
    }

6.效果展示  
(1)点击中文  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2EzNDc2MzUxOTE_size_16_color_FFFFFF_t_70]  
(2)点击English  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2EzNDc2MzUxOTE_size_16_color_FFFFFF_t_70 1]

[2019100316304426.png]: /images/20230601/67c1d7ab78e94b6583e38e741205533c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2EzNDc2MzUxOTE_size_16_color_FFFFFF_t_70]: /images/20230601/7cc477eb1a42467c987c2578db1ef374.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2EzNDc2MzUxOTE_size_16_color_FFFFFF_t_70 1]: /images/20230601/e6d7792c1bab47e19fca99a7da324275.png