addResourceHandlers的用法

package com.example.springboot.config;

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;


@Component
public class WebMvc implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/image/**").addResourceLocations("classpath:/img/");
        WebMvcConfigurer.super.addResourceHandlers(registry);
    }
}

http://localhost:8091/image/1.txt  访问的是resources目录下img目录下的1.txt

默认的文件都可以放到static文件夹下，http://localhost:8091/1.txt 访问即可