MessageSource国际化i18n

川长思鸟来 2021-10-12 23:36 538阅读 0赞

**目录**

配置

MessageUtils

TestController

github

--------------------

# 配置 #

LocaleConfig

package com.example.demo.config;
    
    /**
     * Created on 2019/8/19.
     *
     * @author yangsen
     */
    
    import org.springframework.context.MessageSource;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.support.ReloadableResourceBundleMessageSource;
    import org.springframework.web.servlet.LocaleResolver;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
    import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
    import org.springframework.web.servlet.i18n.SessionLocaleResolver;
    
    import java.util.Locale;
    
    /**
     * 配置国际化语言
     * @author Max.Yang
     */
    @Configuration
    public class LocaleConfig implements WebMvcConfigurer {
    
        /**
         * 默认解析器 其中locale表示默认语言
         */
        @Bean
        public LocaleResolver localeResolver() {
            SessionLocaleResolver localeResolver = new SessionLocaleResolver();
            localeResolver.setDefaultLocale(Locale.CHINESE);
            return localeResolver;
        }
    
        @Bean
        public MessageSource messageSource() {
            ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
            messageSource.setBasename("classpath:static/i18n/messages");
            messageSource.setCacheSeconds(10);
            messageSource.setDefaultEncoding("GBK");
            messageSource.setUseCodeAsDefaultMessage(true);
            return messageSource;
        }
        @Bean
        public LocaleChangeInterceptor localeChangeInterceptor() {
            LocaleChangeInterceptor lci = new LocaleChangeInterceptor();
            // 参数名
            lci.setParamName("lang");
            return lci;
        }
    
        @Override
        public void addInterceptors(InterceptorRegistry registry) {
            registry.addInterceptor(localeChangeInterceptor());
        }
    
    
    }

WebMvcConfigurer 会拦截请求lang后面的请求进行映射，

messageSource.setBasename("classpath:static/i18n/messages");一般这个会配置在application.properties,可是我配置完不成功

其次是GBK编码，如果是utf-8的话会变成???

# MessageUtils #

package com.example.demo.util;
    
    /**
     * Created on 2019/8/19.
     *
     * @author yangsen
     */
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.MessageSource;
    import org.springframework.context.i18n.LocaleContextHolder;
    import org.springframework.stereotype.Component;
    
    /**
     * 国际化工具类
     * @author Max.Yang
     */
    @Component
    public class MessageUtils {
    
        @Autowired
        private MessageSource messageSource;
    
        /**
         * 获取单个国际化翻译值
         */
        public String get(String msgKey) {
            return messageSource.getMessage(msgKey, null, LocaleContextHolder.getLocale());
        }
    
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zODMzNjY1OA_size_16_color_FFFFFF_t_70][]

后面这个可以设定Locale.US,或者Locale.CHINESE来指定映射的内容

# TestController #

package com.example.demo.controller;
    
    import com.example.demo.util.MessageUtils;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import javax.annotation.Resource;
    
    /**
     * Created on 2019/8/19.
     *
     * @author yangsen
     */
    @RestController
    public class TestController {
    
        @Resource
        MessageUtils messageUtils;
    
        //http://localhost:8080/get?lang=en_US
        @GetMapping("/get")
        public String a(){
            return messageUtils.get("user.title");
        }
    
    }

因为在默认配置的话是中文。所以其他lang请求都是映射到中文那里，如果要映射到英文的话需要请求[http://localhost:8080/get?lang=en\_US][http_localhost_8080_get_lang_en_US]

# github #

[https://github.com/dajitui/i18n-demo/tree/master][https_github.com_dajitui_i18n-demo_tree_master]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zODMzNjY1OA_size_16_color_FFFFFF_t_70]: /images/20211013/3b2ad9ce5e1840acad8dda45c158e988.png
[http_localhost_8080_get_lang_en_US]: http://localhost:8080/get?lang=en_US
[https_github.com_dajitui_i18n-demo_tree_master]: https://github.com/dajitui/i18n-demo/tree/master