java View的Spring MVC配置类

Posted 2021-05-08

package com.mycompany.config;

import java.util.Locale;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
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.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.i18n.CookieLocaleResolver;
import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
import org.springframework.web.servlet.resource.PathResourceResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.mycompany")
@PropertySource(value={"classpath:config.properties"})
public class HelloWorldConfig extends WebMvcConfigurerAdapter {
	@Bean
	public ViewResolver viewResolver() {
		InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
		viewResolver.setViewClass(JstlView.class);
		viewResolver.setPrefix("/WEB-INF/views/");
		viewResolver.setSuffix(".jsp");

		return viewResolver;
	}

	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		registry.addResourceHandler("/pdfs/**").addResourceLocations("/pdfs/").setCachePeriod(3600).resourceChain(true)
				.addResolver(new PathResourceResolver());
		registry.addResourceHandler("/js/**").addResourceLocations("/js/").setCachePeriod(3600).resourceChain(true)
		.addResolver(new PathResourceResolver());
	}

	// @Bean
	// public static PropertySourcesPlaceholderConfigurer properties() {
	// return new PropertySourcesPlaceholderConfigurer();
	// }

	@Bean(name = "messageSource")
	public ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource() {
		ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
		messageSource.setBasenames("classpath:com/mycompany/resources/messages");
		messageSource.setDefaultEncoding("UTF-8");
		// System.out.println("etc, resource call");
		return messageSource;
	}

	// @Bean(name = "localeResolver")
	@Bean
	public LocaleResolver localeResolver() {
		CookieLocaleResolver resolver = new CookieLocaleResolver();
		//Locale locale = LocaleContextHolder.getLocale();
		// System.out.println("The language is = " + locale.getLanguage());
		resolver.setDefaultLocale(new Locale("en"));
		resolver.setCookieName("myLocaleCookie");
		resolver.setCookieMaxAge(4800);
		return resolver;
	}

	/*
	 * @Bean public LocaleResolver localeResolver() { SessionLocaleResolver
	 * resolver = new SessionLocaleResolver(); resolver.setDefaultLocale(new
	 * Locale("en")); return resolver; }
	 */

	@Override
	public void addInterceptors(InterceptorRegistry registry) {
		LocaleChangeInterceptor interceptor = new LocaleChangeInterceptor();
		interceptor.setParamName("mylocale");
		registry.addInterceptor(interceptor);
	}

	/*
	 * @Override public void
	 * configureContentNegotiation(ContentNegotiationConfigurer configurer) {
	 * configurer.defaultContentType(MediaType.APPLICATION_XML); }
	 */

	/*@Override
	public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
		// Simple strategy: only path extension is taken into account
		configurer.favorPathExtension(true).ignoreAcceptHeader(true).useJaf(false)
				.defaultContentType(MediaType.TEXT_HTML).mediaType("html", MediaType.TEXT_HTML)
				.mediaType("xml", MediaType.APPLICATION_XML).mediaType("json", MediaType.APPLICATION_JSON);
	}*/

}