SpringBoot实现前后端分离国际化的示例详解

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
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;

@Configuration
public class LocaleConfig {

	@Bean
	public SessionLocaleResolver localeResolver() {
		SessionLocaleResolver localeResolver = new SessionLocaleResolver();
		localeResolver.setDefaultLocale(Locale.CHINA);
		return localeResolver;
	}
	
	@Bean
	public WebMvcConfigurer localeInterceptor() {
		return new WebMvcConfigurer() {
			@Override
			public void addInterceptors(InterceptorRegistry registry) {
				LocaleChangeInterceptor localeInterceptor = new LocaleChangeInterceptor();
				localeInterceptor.setParamName("lang");
				registry.addInterceptor(localeInterceptor);
			}
		};
	}
}

#i18n
spring.messages.basename=i18n.messages
spring.messages.cache-duration=3600
spring.messages.encoding=UTF-8

spring: 
  messages:
    basename: i18n/messages

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/test")
public class TestControler {

	@Autowired
	private MessageSource messageSource;
	
	@GetMapping("/hello")
	public Map<Object, Object> test() {
		Map<Object, Object> result = new HashMap<Object, Object>();
		result.put("code", 40001);
		result.put("msg", messageSource.getMessage("40001", null, LocaleContextHolder.getLocale()));
		return result;
	}

}