linhvovn

## spring-webflux-i18n RequestParamLocaleContextResolver
public class RequestParamLocaleContextResolver implements LocaleContextResolver{

    @Override
    public LocaleContext resolveLocaleContext(ServerWebExchange exchange) {
        Locale targetLocale = Locale.getDefault();
        List<String> referLang = exchange.getRequest().getQueryParams().get("lang");
        if (referLang != null && !referLang.isEmpty()) {
            String lang = referLang.get(0);
            targetLocale = Locale.forLanguageTag(lang);
        }

## spring-webflux-i18n LocaleSupportConfig
@Configuration
public class LocaleSupportConfig extends DelegatingWebFluxConfiguration {

    @Override
    protected LocaleContextResolver createLocaleContextResolver() {
        return new RequestParamLocaleContextResolver();
    }

}

## spring-webflux-i18n welcome.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>I18N Spring Webflux</title>
  </head>
  <body>
    <h2 data-th-text="#{label.welcome}"></h2>
    <p data-th-text="#{label.content}"></p>
    <p data-th-text="#{label.changeLang}"></p>

## spring-webflux-i18n WelcomeHandler
@Component
public class WelcomeHandler {

    public Mono<ServerResponse> hello(ServerRequest request) {
        return ServerResponse
                .ok()
                .contentType(MediaType.TEXT_HTML)
                .render("index");
    }


## spring-webflux-i18n WelcomeRouter
@Configuration
public class WelcomeRouter {

	@Bean
	public RouterFunction<ServerResponse> route(WelcomeHandler welcomeHandler) {

		return RouterFunctions
			.route(RequestPredicates.GET("/index")
                                .and(RequestPredicates.accept(MediaType.TEXT_HTML)), welcomeHandler::hello)
			.andRoute(RequestPredicates.GET("/welcome")

## db-i18n pom.xml
...
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.1.RELEASE</version>
    <relativePath/>
</parent>

<dependencies>
    <dependency>

## db-i18n database.sql
create table IF NOT EXISTS languages (
	id integer auto_increment,
	locale varchar(2),
	messagekey varchar(255),
	messagecontent varchar(255),
	primary key (id)
);

## i18n-db data.sql
INSERT INTO languages (locale, messagekey,messagecontent) VALUES
('en', 'home.welcome','Welcome'),
('en', 'home.info','This page is displayed in English.'),
('en', 'home.changelanguage','Supported languages : '),
('en', 'home.lang.en','English'),
('en', 'home.lang.de','German'),
('en', 'home.lang.zh','Chinese'),

('de', 'home.welcome','Welcome'),
('de', 'home.info','Diese Seite wird in deutscher Sprache angezeigt.'),

## db-i18n application.properties
spring.datasource.url=jdbc:h2:mem:testdb;DB_CLOSE_ON_EXIT=FALSE
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.driverClassName=org.h2.Driver
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect

spring.h2.console.path=/myconsole
spring.h2.console.enabled=true
spring.datasource.initialize=true

## db-i18n WebConfig
@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Bean
    public LocaleResolver localeResolver() {
        return new CookieLocaleResolver();
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
	public class RequestParamLocaleContextResolver implements LocaleContextResolver{

	@Override
	public LocaleContext resolveLocaleContext(ServerWebExchange exchange) {
	Locale targetLocale = Locale.getDefault();
	List<String> referLang = exchange.getRequest().getQueryParams().get("lang");
	if (referLang != null && !referLang.isEmpty()) {
	String lang = referLang.get(0);
	targetLocale = Locale.forLanguageTag(lang);
	}
	@Configuration
	public class LocaleSupportConfig extends DelegatingWebFluxConfiguration {

	@Override
	protected LocaleContextResolver createLocaleContextResolver() {
	return new RequestParamLocaleContextResolver();
	}

	}
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>I18N Spring Webflux</title>
	</head>
	<body>
	<h2 data-th-text="#{label.welcome}"></h2>
	<p data-th-text="#{label.content}"></p>
	<p data-th-text="#{label.changeLang}"></p>
	@Component
	public class WelcomeHandler {

	public Mono<ServerResponse> hello(ServerRequest request) {
	return ServerResponse
	.ok()
	.contentType(MediaType.TEXT_HTML)
	.render("index");
	}
	@Configuration
	public class WelcomeRouter {

	@Bean
	public RouterFunction<ServerResponse> route(WelcomeHandler welcomeHandler) {

	return RouterFunctions
	.route(RequestPredicates.GET("/index")
	.and(RequestPredicates.accept(MediaType.TEXT_HTML)), welcomeHandler::hello)
	.andRoute(RequestPredicates.GET("/welcome")
	...
	<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.1.1.RELEASE</version>
	<relativePath/>
	</parent>

	<dependencies>
	<dependency>
	create table IF NOT EXISTS languages (
	id integer auto_increment,
	locale varchar(2),
	messagekey varchar(255),
	messagecontent varchar(255),
	primary key (id)
	);
	INSERT INTO languages (locale, messagekey,messagecontent) VALUES
	('en', 'home.welcome','Welcome'),
	('en', 'home.info','This page is displayed in English.'),
	('en', 'home.changelanguage','Supported languages : '),
	('en', 'home.lang.en','English'),
	('en', 'home.lang.de','German'),
	('en', 'home.lang.zh','Chinese'),

	('de', 'home.welcome','Welcome'),
	('de', 'home.info','Diese Seite wird in deutscher Sprache angezeigt.'),
	spring.datasource.url=jdbc:h2:mem:testdb;DB_CLOSE_ON_EXIT=FALSE
	spring.datasource.username=sa
	spring.datasource.password=
	spring.datasource.driverClassName=org.h2.Driver
	spring.jpa.hibernate.ddl-auto=update
	spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect

	spring.h2.console.path=/myconsole
	spring.h2.console.enabled=true
	spring.datasource.initialize=true
	@Configuration
	public class WebConfig implements WebMvcConfigurer {

	@Bean
	public LocaleResolver localeResolver() {
	return new CookieLocaleResolver();
	}

	@Override
	public void addInterceptors(InterceptorRegistry registry) {