如何使用 Spring Boot 缓存 js、img 和 CSS 文件？

Posted 2023-02-26

【中文标题】如何使用 Spring Boot 缓存 js、img 和 CSS 文件？

【英文标题】：How to cache js, img and CSS file with Spring Boot?

【发布时间】：2018-07-05 23:16:07

【问题描述】：

我使用带有 Spring Security 和 Thymeleaf 的 Spring Boot 2。我有 MVC 和 REST 的设置。

我正在寻找一种缓存 javascript、图像和 CSS 文件的方法。

@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class MultiHttpSecurityConfig 
    ...

    @Configuration
    @Order(1)
    public class RestWebSecurityConfigurationAdapter extends WebSecurityConfigurerAdapter 
           ...
    


    @Configuration
    @Order(2)
    public class FormLoginWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter 

        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception 
            auth.authenticationEventPublisher(authenticationEventPublisher).userDetailsService(userDetailsService)
                    .passwordEncoder(passwordEncoder);
        

        @Override
        protected void configure(HttpSecurity http) throws Exception 
            http.authorizeRequests()
                    .antMatchers("/css/**", "/webjars/**", "/js/**", "/img/**", "/")
                    .permitAll().anyRequest().authenticated().and().formLogin().loginPage("/login").permitAll()
                    .successHandler(new CustomAuthenticationSuccessHandler())
                    .and().logout().logoutUrl("/logout").logoutSuccessHandler(new CustomLogoutHandler())
                    .logoutSuccessUrl("/login").and().csrf().disable();
        
    

我创建了这个类：

@EnableWebMvc
public class MvcConfig implements WebMvcConfigurer 

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) 
        registry.addResourceHandler("/js/**", "/webjars/**", "/img/**") 
                .addResourceLocations("/js/", "/webjars/", "/img/") 
                .setCacheControl(CacheControl.maxAge(365, TimeUnit.DAYS));
    

同样的结果，浏览器每次都会下载所有文件。

在src/main/resources下我有：

static  
    css  
    img  
    js  

templates  

编辑：

响应头：

Accept-Ranges:bytes
Cache-Control:no-cache, no-store, max-age=0, must-revalidate
Content-Length:95821
Content-Type:application/javascript
Date:Fri, 26 Jan 2018 15:40:55 GMT
Expires:0
Last-Modified:Fri, 02 Jun 2017 12:55:44 GMT
Pragma:no-cache
X-Content-Type-Options:nosniff
X-Frame-Options:DENY
X-XSS-Protection:1; mode=block

编辑 2

我在我的FormLoginWebSecurityConfigurerAdapter 类中添加了：

@Override
public void configure(WebSecurity web) throws Exception 
    web.ignoring().antMatchers("/css/**", "/webjars/**", "/js/**", "/img/**");

同样的结果。

好的，让它适用于资源中的 css、js

mvc 配置改为

@Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) 
        registry.addResourceHandler("/resources/js/**", "/webjars/**", "/resources/img/**") 
                .addResourceLocations("/resources/js/", "/webjars/", "/resources/img/") 
                .setCacheControl(CacheControl.maxAge(365, TimeUnit.DAYS));
    

好像不需要修改 FormLoginWebSecurityConfigurerAdapter antMachers 来添加资源...

【参考方案1】：

尝试在 Spring Boot 主类 (@SpringBootApplication) 中添加以下代码

@Bean
public WebMvcConfigurerAdapter webConfigurer () 
      return new WebMvcConfigurerAdapter() 
          @Override
          public void addResourceHandlers (ResourceHandlerRegistry registry) 
              registry.addResourceHandler("/static/js/**")
                      .addResourceLocations("/static/js/")
                      .setCacheControl(CacheControl.maxAge(365, TimeUnit.DAYS));
              registry.addResourceHandler("/static/images/**")
              .addResourceLocations("/static/images/")
              .setCacheControl(CacheControl.maxAge(365, TimeUnit.DAYS));
              registry.addResourceHandler("/static/css/**")
              .addResourceLocations("/static/css/")
              .setCacheControl(CacheControl.maxAge(365, TimeUnit.DAYS));
          
      ;

文件位于以下路径：

您可以添加缓存是私有的还是公共的，或者必须重新验证 setCacheControl(CacheControl.maxAge(365, TimeUnit.DAYS).cachePrivate().mustRevalidate())