SpringBoot 消息国际化配置

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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.Locale;

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<HttpMessageConverter<?>> converters) {

		super.configureMessageConverters(converters);

		converters.add(responseBodyConverter());

	}

	@Bean

    public HttpMessageConverter<String> 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");

	}

}