你好

我觉得 我很帅

// 访问外部静态资源文件
@Configuration
public class WebMvcConfiguration extends WebMvcConfigurationSupport {
 
    //windows系统下访问路径
    private static final String filePathWindow = "C:\\img\\";
    //Linux系统下访问路径
    private static final String filePathLinux = "/user/img/";
 
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        // 获取操作系统名称
        String os = System.getProperty("os.name");
 
        //如果是Windows系统
        if (os.toLowerCase().startsWith("win")) {
            registry.addResourceHandler("/image/**")
                    // /image/**: 表示在磁盘filePathWindow目录下的所有资源会被解析为以下的路径
                    .addResourceLocations("file:" + filePathWindow);
        } else {
            //linux 和 mac
            registry.addResourceHandler("/image/**")
                    .addResourceLocations("file:" + filePathLinux);
        }
 
        registry.addResourceHandler("/**")
                .addResourceLocations("classpath:/static/")
                .addResourceLocations("classpath:/templates/");
 
        super.addResourceHandlers(registry);
    }
 
 
    /*
        跨域配置
     */
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedMethods("POST", "GET", "PUT", "OPTIONS", "DELETE")
                .allowCredentials(true)
                .allowedHeaders("*")
                .maxAge(3600);
    }
}