在SSM框架中将图片上传到数据库中的实现代码

<dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.4</version>
    </dependency>

    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>1.4</version>
    </dependency>

    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.1</version>
    </dependency>

<meta http-equiv="Content-Type" content="multipart/form-data;charset=utf-8" />

enctype="multipart/form-data"

<label class="layui-form-label">请选择上传图片：<input type="file" name="pictureFile" class="layui-upload-file"></label>

@RequestMapping("这里写form表单提交的请求路径")
  public String shengadd(HttpServletRequest request, Sheng sheng, MultipartFile pictureFile) throws Exception {
    System.out.println("***");
    //使用UUID给图片重命名，并去掉四个“-”
    String name = UUID.randomUUID().toString().replaceAll("-", "");
    //获取文件扩展名
    String ext = FilenameUtils.getExtension(pictureFile.getOriginalFilename());
    //设置图片上传路径
    String url = request.getSession().getServletContext().getRealPath("/statics/img");
    System.out.println(url);//输出文件名
    //以绝对路径保存重命名后的图片
    pictureFile.transferTo(new File(url + "/" + name + "." + ext));
    //把图片储存路径保存到数据库
    sheng.setImg("statics/img/" + name + "." + ext);
    userService.riyongadd(sheng);
    return "redirect:/redutime.html";
  }

<!-- 定义文件上传解析器 -->
  <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <!-- 设定默认编码 -->
    <property name="defaultEncoding" value="UTF-8"></property>
    <!-- 设定文件上传的最大值5MB，5*1024*1024 -->
    <property name="maxUploadSize" value="5242880"></property>
  </bean>