Spring MVC VersionResourceResolver/ContentVersionStrategy在JSP中无法正常工作 [英] Spring MVC VersionResourceResolver / ContentVersionStrategy not working correctly in JSP

问题描述

我有一个Spring MVC(4.3.0)应用程序，并已向ResourceHandlerRegistry注册了一个带有ContentContentionStrategy的VersionResourceResolver.我启用了ResourceUrlEncodingFilter.

I have a Spring MVC (4.3.0) application and have registered a VersionResourceResolver with added ContentVersionStrategy with the ResourceHandlerRegistry. I have the ResourceUrlEncodingFilter enabled.

    @Bean
    public ResourceUrlEncodingFilter resourceUrlEncodingFilter() {
        return new ResourceUrlEncodingFilter();
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        boolean devMode = this.env.acceptsProfiles("local");
        //boolean useResourceCache = !devMode;
        Integer cachePeriod = devMode ? 0 : (60 * 60 * 24 * 365); //If dev clear cache else 1 year

        registry.addResourceHandler("/resources/**")
                .addResourceLocations("/resources/")
                .setCachePeriod(cachePeriod)
                .resourceChain(false)
                .addResolver(new VersionResourceResolver()
                    .addContentVersionStrategy("/**"))
                .addTransformer(new AppCacheManifestTransformer());
}

当我使用c:url或spring:url标记访问JSP页面上的/resources中的任何内容(JS，图像，CSS等)时，版本化" URL不显示(表示:中没有哈希码) URL).示例:

When I access anything in /resources (JS, Images, CSS, etc) on a JSP page using the c:url or spring:url tags, the "versioned" URL does not show up (meaning: no hash code in the URL). Example:

<link href="<c:url value="/resources/css/views/login.css" />" rel="stylesheet">

在检查页面时产生:/myapp/resources/css/views/login.css作为URL字符串.

Produces: /myapp/resources/css/views/login.css as the URL string when inspecting the page.

但是，如果我在Controller中使用ResourceURLProvider，则 做 会看到URL中的哈希码:

But, if I use a ResourceURLProvider in my Controller, I do see the hash code in the URL:

@Autowired
private ResourceUrlProvider mvcResourceUrlProvider;

@RequestMapping(value = { "/" }, method = RequestMethod.GET)
public String projectBaseRedirect() {

    logger.debug("js =  '" + this.mvcResourceUrlProvider.getForLookupPath("/resources/js/views/overview.js") + "'");
    logger.debug("css =  '" + this.mvcResourceUrlProvider.getForLookupPath("/resources/css/views/overview-page.css") + "'");

    return "redirect:/admin/overview";
}

日志消息产生以下信息:

The log messages produce this:

2016-07-09 11:47:19   DEBUG AdminLoginController:35 - js =  '/resources/js/views/overview-36d1ff98d627d92a72d579eca49dbd8a.js'
2016-07-09 11:47:19   DEBUG AdminLoginController:36 - css =  '/resources/css/views/overview-page-d47f10e5bcf0fdd67bd8057479b523f0.css'

为什么这在控制器中起作用，但在我的JSP页面上却不起作用?

Why is this working in the controller but not on my JSP pages?

我也在使用Spring Security(4.1.0)...

I am also using Spring Security (4.1.0)...

推荐答案

由于示例中缺少它，因此项目中也可能缺少它.您需要使用的模板引擎资源提供程序.如果是JSP，请注册一个过滤器:

As it is missing in your example it is maybe missing in your project as well. You need a resource provider for the template engine you're using. In case of JSP, register a filter:

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

  @Bean
  public ResourceUrlEncodingFilter resourceUrlEncodingFilter() {
    return new ResourceUrlEncodingFilter();
  }
}

或将过滤器注册bean与该过滤器一起使用:

Or use a filter registration bean with that filter:

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

  @Bean
  public FilterRegistrationBean filterRegistrationBean() {
    final FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new ResourceUrlEncodingFilter());
    filterRegistrationBean.addUrlPatterns("/*");
    return filterRegistrationBean;
  }
}

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