从文件系统提供静态资源 |Spring Boot Web [英] Serving Static resources from file system | Spring Boot Web

问题描述

使用 Spring Boot Web 应用程序，我尝试从项目外的文件系统文件夹中提供静态资源.

Using a Spring Boot web application I trying to serve my static resource from a file system folder outside my project.

文件夹结构如下:-

          src
             main
                 java
                 resources
             test
                 java
                 resources
          pom.xml
          ext-resources   (I want to keep my static resources here)
                 test.js

弹簧配置:-

@SpringBootApplication
public class DemoStaticresourceApplication extends WebMvcConfigurerAdapter {

    public static void main(String[] args) {
        SpringApplication.run(DemoStaticresourceApplication.class, args);
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/test/**").addResourceLocations("file:///./ext-resources/")
                .setCachePeriod(0);
    }
}

点击 'http://localhost:9999/test/test.js' 在我的浏览器返回 404.

Hitting 'http://localhost:9999/test/test.js' in my browser gives back a 404.

我应该如何配置 ResourceHandlerRegistry 以提供来自上述ext-resources"文件夹的静态资源?

How should I configure ResourceHandlerRegistry to serve static resources from the above mentioned 'ext-resources' folder?

我应该能够为开发/生产环境打开/关闭缓存.

I should be able to switch cache on/off for dev/prod environment.

谢谢

更新 1

给出绝对文件路径有效:-

Giving absolute file path works:-

@Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/test/**")
                .addResourceLocations(
                        "file:///C:/Sambhav/Installations/workspace/demo-staticresource/ext-resources/")
                .setCachePeriod(0);
}

我如何提供相对位置?绝对路径将使我在构建过程中生活艰难部署流程.

How can I provide relative location? Absolute path will make my life tough during build & deploy process.

推荐答案

file:/// 是指向文件系统根目录的绝对 URL，因此 file:///./ext-resources/ 表示 Spring Boot 正在根目录下一个名为 ext-resources 的目录中寻找资源.

file:/// is an absolute URL pointing to the root of the filesystem and, therefore, file:///./ext-resources/ means that Spring Boot is looking for resources in a directory named ext-resources in the root.

更新您的配置以使用诸如 file:ext-resources/ 之类的内容作为 URL.

Update your configuration to use something like file:ext-resources/ as the URL.

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