import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 
/**
 * 圖片絕對(duì)地址與虛擬地址映射
 */
 
@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter { 
  @Override
  public void addResourceHandlers(ResourceHandlerRegistry registry) { 
//文件磁盤圖片url 映射
//配置server虛擬路徑，handler為前臺(tái)訪問的目錄，locations為files相對(duì)應(yīng)的本地路徑
registry.addResourceHandler("/image/**").addResourceLocations("D:\\picpath\\");
  } 
}

@ResponseBody
    @RequestMapping("uploadImage")
    public DataGridView uploadImage(MultipartFile file, HttpSession session) throws Exception {
        DataGridView dataGridView = null;
        if (!file.isEmpty()){
            String filename = file.getOriginalFilename(); //abc.jpg
            String suffix = filename.substring(filename.lastIndexOf(".")); //后綴 如abc.jpg,就是jpg
            String newFileName = DateUtil.getCurrentDateStr() + suffix;  //新文件名
            FileUtils.copyInputStreamToFile(file.getInputStream(),new File(userImageFilePath+newFileName));
            Map<String,Object> map= new HashMap<>();
            map.put("src","/project/userImages/"+newFileName);
            map.put("title",newFileName);
            dataGridView = new DataGridView(0, "上傳成功", map);
            User currentUser = (User) session.getAttribute("currentUser");
            currentUser.setImageName(newFileName);
            userService.save(currentUser);
            session.setAttribute("currentUser",currentUser);
            System.out.println("執(zhí)行完了");
        }
        return dataGridView;
    }

<Context path="/" docBase="/home/tomcat/apache-tomcat-8.5.45/webapps/code007" debug="0" reloadable="true"/>