部署spring mvc应用程序后放置css,img和js文件

Question

我是春季mvc的新手,我有一些问题:

1)我可以从jsp页面访问WEB-INF目录中的img,css和js吗？

文件夹结构是:

webapp
  - WEB-INF
     - css
     - js
     - img

2)我有WebMvcConfig类,扩展了WebMvcConfigurerAdapter:

@Configuration
@EnableWebMvc
@Import({BeanConfig.class, CacheConfig.class})
public class WebMvcConfig extends WebMvcConfigurerAdapter {  

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/css/**").addResourceLocations("/resources/css/").setCachePeriod(31556926);
        registry.addResourceHandler("/img/**").addResourceLocations("/resources/img/").setCachePeriod(31556926);
        registry.addResourceHandler("/js/**").addResourceLocations("/resources/js/").setCachePeriod(31556926);
    }   

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }   

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new ControllerInterceptor());
    }  

    @Bean
    public InternalResourceViewResolver getInternalResourceViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        return resolver;
    }    
    @Bean
    public ContentNegotiatingViewResolver getContentNegotiatingViewResolver() {
        ContentNegotiatingViewResolver resolver = new ContentNegotiatingViewResolver();
        ArrayList<View> defaultViews = new ArrayList<View>();
        MappingJacksonJsonView jsonView = new MappingJacksonJsonView();
        jsonView.setPrefixJson(true);
        defaultViews.add(new MappingJacksonJsonView());
        resolver.setDefaultViews(defaultViews);
        resolver.setOrder(1);
        return resolver;
    }

    @Bean
    public ControllerInterceptor getLoggingInterceptor() {
        return new ControllerInterceptor();
    }
}

我想访问文件夹:/ resources/css,/ resources/img和/ resources/js,

web.xml文件的一部分:

<servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextClass</param-name>
        <param-value>
            org.springframework.web.context.support.AnnotationConfigWebApplicationContext
        </param-value>
    </init-param>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            config.WebMvcConfig
        </param-value>
    </init-param>
</servlet>

<servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

文件夹结构是:

webapp
   - WEB-INF
   - resources
        - css
        - js
        - img

但它不起作用

Answer 1

是的,你可以这样做.

registry.addResourceHandler("/css/**").addResourceLocations("/resources/css/").setCachePeriod(31556926);

你有这种结构

webapp
   - WEB-INF
   - resources
        - css
            - somefile.css
        - js
        - img

您可以访问您的资源

localhost:8080/context/css/somefile.css

将从中获取资源/resources/css/somefile.css.对所有其他资源执行相同操作.