解决：附件上传需要注意upload服务器中保存附件的位置，放在resources下需要重新部署才能访问（需要配置映射绝对路径关系）

本文链接：https://blog.youkuaiyun.com/qq_42664961/article/details/117855758

问题解决：

参考：https://blog.youkuaiyun.com/qq_35387940/article/details/108843878

解决前：服务器需要重启重新部署才能访问到上传的文件

@Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        if (!registry.hasMappingForPattern("/webjars/**")) {
            registry.addResourceHandler("/webjars/**").addResourceLocations(
                    "classpath:/META-INF/resources/webjars/");
        }
      //  String path = System.getProperty("user.dir") + "\\src\\main\\resources\\static\\upload\\";
        if (!registry.hasMappingForPattern("/upload/**")) {
            registry.addResourceHandler("/upload/**").addResourceLocations(
                    "classpath:/upload/");
        }
        if (!registry.hasMappingForPattern("/**")) {
            registry.addResourceHandler("/**").addResourceLocations(
                    CLASSPATH_RESOURCE_LOCATIONS);
        }

    }

在这里插入图片描述

解决后：

配置类中：设置在resources之下修改路径映射关系，获取文件的绝对路径：

  @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        if (!registry.hasMappingForPattern("/webjars/**")) {
            registry.addResourceHandler("/webjars/**").addResourceLocations(
                    "classpath:/META-INF/resources/webjars/");
        }
//        解决附件上传需要重新部署才能访问到文件的问题
        String path = System.getProperty("user.dir") + "/src/main/resources/upload/";
        if (!registry.hasMappingForPattern("/upload/**")) {
            registry.addResourceHandler("/upload/**").addResourceLocations(
                    "file:"+path);
        }
        if (!registry.hasMappingForPattern("/**")) {
            registry.addResourceHandler("/**").addResourceLocations(
                    CLASSPATH_RESOURCE_LOCATIONS);
        }

    }