springboot上传图片到本地或者阿里云服务器，然后本地访问或者外网访问的步骤

springboot上传图片到本地或者阿里云服务器，然后本地访问或者外网访问的步骤

废话不多说，直接上代码：

/**
    * @Description:    文件上传
    * @Author:         gaolei
    * @CreateDate:     2019/6/26 0026 16:20
    *@PARAM:
    */
    @Override
    public String upload(MultipartFile file) throws IOException {
        // 获取文件名
        String fileName = file.getOriginalFilename();

        // 获取文件的后缀名
        String suffixName = fileName.substring(fileName.lastIndexOf("."));


        // 解决中文问题，liunx下中文路径，图片显示问题
        fileName = UUID.randomUUID().toString().replace("-", "") + suffixName;

        // 返回客户端 文件地址 URL
        String url = "http://47.100.204.62:8080/advermachine"+"/upload/" + fileName;
        // String url = "localhost:8090"+"/upload/" + fileName;

         File dest = new File(ApiConstant.UPLOAD_PATH + fileName);

       // File dest = new File(ApiConstant.DEV_UPLOAD_PATH + fileName);

        // 检测是否存在目录
        if (!dest.getParentFile().exists()) {
            dest.getParentFile().mkdirs();
        }

        file.transferTo(dest);

       // return new ResultBuilder<>().setData(MapUtil.returnMap("url",url)).build();

        return url;
    }

映射配置

package com.jmkj.admin.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class MyPicConfig implements WebMvcConfigurer {

    @Override
 public void addResourceHandlers(ResourceHandlerRegistry registry) {
   registry.addResourceHandler("/upload/**").addResourceLocations("file:/opt/upload/");
   //registry.addResourceHandler("/upload/**").addResourceLocations("file:D:/upload/");

    }

}

 @RequestMapping(value = "/upload.action", method = RequestMethod.POST)
    public String upload(@RequestParam("file") MultipartFile file) throws IOException{

        if(file != null){
            return orderService.upload(file);
        }

        return "文件不存在";

    }

postman测试

上传成功之后访问：

localhost+端口号+映射配置的地址+图片名字就可以访问

阿里云服务器也是一个道理，先将项目打包发布到服务器上去，然后postman测试上传图片，然后访问地址是：ip+端口号（一般是8080）+项目名字+映射+图片名字