Spring在webapps之外的磁盘上从外部文件夹获取文件和图像？ [英] Spring get files and images from external folder on disk, outside webapps?

问题描述

我有webproject，其中包含src / main / webapp文件夹中的图像。我想将图像放在磁盘上的不同文件夹中。但我不知道如何管理访问此图像的请求。
我应该创建某种 httpServlet ，如下所示： http://balusc.omnifaces.org/2007/07/fileservlet.html

I have webproject which has images inside src/main/webapp folder. I would like to place images in different folder on the disk. But I have no idea how to manage requests to reach this images. Should I create some kind of httpServlet like shown here: http://balusc.omnifaces.org/2007/07/fileservlet.html

或者当我使用Spring MVC时java配置，有更合适和更简单的方法。

Or as I use Spring MVC with java configuration, there is more suitable and simpler way.

期待您的建议。

推荐答案

使用spring mvc对静态资源的支持，其位置属性是一个Spring 资源 ，所以你可以使用文件：前缀

Use the spring mvc support for static resources, its location attribute is an Spring Resource, so you could use file: prefix

<resources mapping="/resources/**" location="file:/my/external/directory/" />

或

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**")
                .addResourceLocations("file:/my/external/directory/");
    }
}

@See Spring Reference Chapter 6.4 ResourceLoader for a列出所有资源前缀的表

@See Spring Reference Chapter 6.4 The ResourceLoader for a table that list all prefixed for resources

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