springboot访问静态资源文件

1、WebMvcConfiguration 
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.WebMvcConfigurerAdapter;

@Configuration
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {
   @Value("${upload.path}")
   private String uploadPath;

   @Override
   public void addResourceHandlers(ResourceHandlerRegistry registry) {
      //addResourceHandler是指你想在url请求的路径
      //addResourceLocations是图片存放的真实路径
      registry.addResourceHandler("/**").addResourceLocations("file:"+uploadPath);
      super.addResourceHandlers(registry);
   }

}

2、配置文件

upload:

  path: D://upload/

resources:
  static-locations: classpath:/META-INF/resources/,classpath:/resources/,\classpath:/static/,classpath:/public/,file:${upload.path}

3、访问：

http://localhost:8080/1.png