springboot通过url访问本地图片

1.引入jar包

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

2.创建配置类

package com.common.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * @BelongsProject: demo
 * @Author: DanBrown
 * @CreateTime: 2020-03-28 14:33
 * @description: TODO
 */
@Configuration
public class WebConfig implements WebMvcConfigurer {
    @Value("${upload.path}")
    private String uploadPath; 

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        //  /home/file/**为前端URL访问路径  后面 file:xxxx为本地磁盘映射 file:/C:/aaa/bbb/
        registry.addResourceHandler("/home/file/**").addResourceLocations("file:C:" + uploadPath);
    }

}

3. 访问

http://localhost:8080/home/file/820123.png