SpringBoot消息国际化配置实现过程解析

SpringBoot消息国际化配置实现过程解析

一、目的

针对不同地区，设置不同的语言信息。

SpringBoot国际化配置文件默认放在classpath:message.properties，如果自定义消息配置文件，需要application.properties或application.yml中设置spring.messages.basename的值。

二、步骤

在src/main/resources 下建i18n文件夹

在i18n文件夹中建立messages.properties 找不到语言配置时，使用此文件

hello=你好_默认

在i18n文件夹中建立messages_en_US.properties 英文语言配置

hello=hello_English

在i18n文件夹中建立messages_zh_CN.properties 中文语言配置

hello=你好_中文

MessageConfig.java

对消息的配置

package com.spring.security.config.spring;

import java.util.Locale;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.context.i18n.LocaleContext;

import org.springframework.context.support.ResourceBundleMessageSource;

import org.springframework.util.Assert;

import org.springframework.web.servlet.LocaleResolver;

import org.springframework.web.servlet.i18n.AbstractLocaleContextResolver;

import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;

import org.springframework.web.servlet.i18n.SessionLocaleResolver;

@Configuration

public class MessageConfig extends AbstractLocaleContextResolver{

@Value("${spring.messages.basename}")

public String[] basenames;

@Bean(name = "messageSource")

public ResourceBundleMessageSource resourceBundleMessageSource() {

ResourceBundleMessageSource source = new ResourceBundleMessageSource();

if (basenames != null) {

for (int i = 0; i < basenames.length; i++) {

String basename = basenames[i];

Assert.hasText(basename, "Basename must not be empty");

this.basenames[i] = basename.trim();

}

source.setBasenames(basenames);

} else {

this.basenames = new String[0];

source.setBasename(basenames[0]);

}

source.setDefaultEncoding("UTF-8");

source.setUseCodeAsDefaultMessage(true);

return source;

}

@Bean

public LocaleResolver localeResolver() {

SessionLocaleResolver slr = new SessionLocaleResolver();

slr.setDefaultLocale(Locale.SIMPLIFIED_CHINESE);

return slr;

}

/**

* 国际化，设置url识别参数

*

* @return

*/

@Bean

public LocaleChangeInterceptor localeChangeInterceptor() {

LocaleChangeInterceptor lci = new LocaleChangeInterceptor();

lci.setParamName("lang");

return lci;

}

@Override

public LocaleContext resolveLocaleContext(HttpServletRequest request) {

return null;

}

@Override

public void setLocaleContext(HttpServletRequest request, HttpServletResponse response,

LocaleContext localeContext) {

}

}

SpringUtils.java

Spring工具类，用于获取ApplicationContext

package com.spring.security.common.utils;

import org.springframework.beans.BeansException;

import org.springframework.context.ApplicationContext;

import org.springframework.context.ApplicationContextAware;

import org.springframework.stereotype.Service;

/**

* Spring容器

*/

@Service

public class SpringUtils implements ApplicationContextAware {

private static ApplicationContext context = null;

@Override

public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {

if (context == null) {

context = applicationContext;

}

}

/**

* 获取容器

*

* @return 容器

*/

public static ApplicationContext getContext() {

return context;

}

}

MessageUtils.java

封装获取message的工具类

package com.spring.security.common.utils;

import java.util.LocauwVkfyEFmle;

import org.springframework.context.i18n.LocaleContextHolder;

import org.springframework.context.support.ReloadableResourceBundleMessageSource;

public class MessageUtils {

public static String getMessage(String code) {

Locale locale = LocaleContextHolder.getLocale();

ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource = new ReloadableResourceBundleMessageSource();

String message = reloadableResourceBundleMessageSource.getMessage(code, null, locale);

return message;

}

}

** WebMvcConfig.java**

mvc配置，解决跨域，接口中文乱码，添加语言拦截器

package com.spring.security.config.spring;

import java.nio.charset.Charset;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.http.converter.HttpMessageConverter;

import org.springframework.http.converter.StringHttpMessageConverter;

import org.springframework.web.servlet.config.annotation.CorsRegistry;

import org.springframework.web.servlet.config.annotation.InterceptorRegistry;

import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;

@Configuration

public class WebMvcConfig extends WebMvcConfigurationSupport {

@Autowired

private LocaleChangeInterceptor localeChangeInterceptor;

/**

* 解决跨域

*/

@Override

protected void addCorsMappings(CorsRegistry registry) {

registry

.addMapping("/**")

.allowedHeaders("*")

.allowedMethods("*")

.allowedOrigins("*")

.allowCredentials(true);

}

/**

* 配置消息转换器

* 解决返回String乱码

*/

@Override

protected void configureMessageConverters(List> converters) {

super.configureMessageConverters(converters);

converters.add(responseBodyConverter());

}

@Bean

public HttpMessageConverter responseBodyConverter() {

return new StringHttpMessageConverter(Charset.forName("UTF-8"));

}

@Override

protected void addInterceptors(InterceptorRegistry registry) {

super.addInterceptors(registry);

registry.addInterceptor(localeChangeInterceptor);

}

}

三、测试

测试接口：

package com.spring.security.controller;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RestController;

import com.spring.security.common.utils.I18nUtils;

@RestController

public class TestController {

@GetMapping("/test")

public String doTest() {

return I18nUtils.getMessage("hello");

}

}

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