Spring Boot and Thymeleaf (1): Internationalization

In Thymeleaf there is a message expression: #{...}, which enables internationalization.

In my use of this feature, encountered a problem, according to Java EE development of the Subversion Spring boot combat above the code, there are the following issues, I believe many people have encountered.

?? Home.welcome_zh_cn??

Recommend a blog here, there are solutions. Play Spring boot--internationalization

I also want to record my own code.

A. Catalog Preview

Here I did not according to the information, the properties file is built in the index.html same level directory, nor the name is named: index.properties

That's the way it was before, but there's the problem.

Two. properties File contents

Messages.properties:

Welcome=welcome here!  Welcome   Welcome!

This is the time when there is no language match to show

Messages_en_us.properties:

Welcome=welcome here!

Messages_zh_cn.properties:

Welcome= Welcome Welcome!

Three. Controller

 PackageOrg.elvin.learn.springboot.controller;ImportOrg.elvin.learn.springboot.pojo.Book;ImportOrg.joda.time.DateTime;ImportOrg.springframework.stereotype.Controller;ImportOrg.springframework.ui.Model;Importorg.springframework.web.bind.annotation.GetMapping;Importorg.springframework.web.bind.annotation.RequestMapping;Importjava.util.ArrayList;Importjava.util.List;/*** Author:elvin * DATE:2017/12/13 9:29 * Description:*/@Controller @requestmapping ("Thy") Public classThycontroller {@GetMapping ("Index")     PublicString Index (model model) {Model.addattribute ("Color", "red"); return"Thy/index"; }}

Four. View

<! DOCTYPE html>/*accessing properties in model by [[$ {}]]*/. bgcolor {background-Color:[[${color}]}</style>class= "Panel Panel-primary" > <divclass= "Panel-heading" > class= "Panel-title" > Welcome class= "Panel-body" > <!--$ {} variable expression, you can access properties in model--<spanclass= "bgcolor" th:utext= "#{welcome}" >hahaha</span> </div></div></body>
Five. Results
Use Firefox (you can adjust the display language).
The first time it was opened, it was already normal to display. No more errors.
At this point, adjust the Firefox default display language
Refresh page:
Someone may have noticed that I have two links here that I can use to toggle the display. In the way above, it is not possible to switch so. Some changes need to be made at this time
Six. Custom display
Adding a configuration file
 Packageorg.elvin.learn.springboot.conf;ImportJava.util.Locale;Importorg.springframework.boot.autoconfigure.EnableAutoConfiguration;ImportOrg.springframework.context.annotation.Bean;ImportOrg.springframework.context.annotation.ComponentScan;Importorg.springframework.context.annotation.Configuration;ImportOrg.springframework.web.servlet.LocaleResolver;ImportOrg.springframework.web.servlet.config.annotation.InterceptorRegistry;ImportOrg.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;ImportOrg.springframework.web.servlet.i18n.LocaleChangeInterceptor;Importorg.springframework.web.servlet.i18n.sessionlocaleresolver;@ Configuration@enableautoconfiguration@componentscan Public classLocaleconfigextendsWebmvcconfigureradapter {@Bean Publiclocaleresolver Localeresolver () {sessionlocaleresolver SLR=NewSessionlocaleresolver (); //Default Language//Slr.setdefaultlocale (locale.us);        returnSLR; } @Bean Publiclocalechangeinterceptor Localechangeinterceptor () {Localechangeinterceptor LCI=NewLocalechangeinterceptor (); //Name of parameterLci.setparamname ("Lang"); returnLCI; } @Override Public voidaddinterceptors (Interceptorregistry registry) {Registry.addinterceptor (Localechangeinterceptor ()); }}
The default language here can be set or not set. If not set, it will determine which message is displayed according to the browser's default language.
Seven. Results
You can choose to show that language according to Lang.
Spring Boot and Thymeleaf (1): Internationalization