package org.baeldung.spring;
import java.util.Locale;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.core.env.Environment;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.i18n.CookieLocaleResolver;
import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
import org.springframework.web.servlet.resource.GzipResourceResolver;
import org.springframework.web.servlet.resource.PathResourceResolver;
import org.springframework.web.servlet.resource.ResourceUrlEncodingFilter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
@Configuration
@ComponentScan(basePackages = { "org.baeldung.web.controller", "org.baeldung.persistence.service", "org.baeldung.persistence.dao" })
@EnableWebMvc
public class MvcConfig extends WebMvcConfigurerAdapter {
@Autowired
Environment env;
public MvcConfig() {
super();
}
// API
@Override
public void addViewControllers(final ViewControllerRegistry registry) {
super.addViewControllers(registry);
registry.addViewController("/login.html");
registry.addViewController("/home.html");
}
@Bean
public ViewResolver viewResolver() {
final InternalResourceViewResolver bean = new InternalResourceViewResolver();
bean.setViewClass(JstlView.class);
bean.setPrefix("/WEB-INF/view/");
bean.setSuffix(".jsp");
return bean;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
// For examples using Spring 4.1.0
if ((env.getProperty("resource.handler.conf")).equals("4.1.0")) {
registry.addResourceHandler("/js/**").addResourceLocations("/js/").setCachePeriod(3600).resourceChain(true).addResolver(new GzipResourceResolver()).addResolver(new PathResourceResolver());
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/", "classpath:/other-resources/").setCachePeriod(3600).resourceChain(true).addResolver(new PathResourceResolver());
registry.addResourceHandler("/files/**").addResourceLocations("file:/Users/Elena/").setCachePeriod(3600).resourceChain(true).addResolver(new PathResourceResolver());
registry.addResourceHandler("/other-files/**").addResourceLocations("file:/Users/Elena/").setCachePeriod(3600).resourceChain(true).addResolver(new GzipResourceResolver());
}
// For examples using Spring 4.0.7
else if ((env.getProperty("resource.handler.conf")).equals("4.0.7")) {
registry.addResourceHandler("/resources/**").addResourceLocations("/", "/resources/", "classpath:/other-resources/");
registry.addResourceHandler("/files/**").addResourceLocations("file:/Users/Elena/");
}
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor();
localeChangeInterceptor.setParamName("lang");
registry.addInterceptor(localeChangeInterceptor);
}
@Bean
public ResourceUrlEncodingFilter resourceUrlEncodingFilter() {
ResourceUrlEncodingFilter filter = new ResourceUrlEncodingFilter();
return filter;
}
@Bean
public LocaleResolver localeResolver() {
CookieLocaleResolver cookieLocaleResolver = new CookieLocaleResolver();
cookieLocaleResolver.setDefaultLocale(Locale.ENGLISH);
return cookieLocaleResolver;
}
@Bean
public MessageSource messageSource() {
ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
messageSource.setBasename("classpath:messages");
messageSource.setUseCodeAsDefaultMessage(true);
messageSource.setDefaultEncoding("UTF-8");
messageSource.setCacheSeconds(0);
return messageSource;
}
}