SpringMVC利用dropzone組件實現(xiàn)圖片上傳

//下面src中的地址根據(jù)自己文件地址進行修改，不能之間copy，否則可能用不了?。。?<link rel="stylesheet" href="/static/assets/plugins/dropzone/min/dropzone.min.css" rel="external nofollow" />
<link rel="stylesheet" href="/static/assets/plugins/dropzone/min/basic.min.css" rel="external nofollow" />
<script src="/static/assets/plugins/dropzone/min/dropzone.min.js"></script>

<div id="dropz" class="dropzone"></div>

<script>
var myDropzone = new Dropzone("#dropz", {
  url: "/upload", //需要上傳的后臺接口地址
  dictDefaultMessage: '拖動文件至此或者點擊上傳', // 設(shè)置默認(rèn)的提示語句
  paramName: "dropzFile", // 傳到后臺的參數(shù)名稱
  init: function () {
    this.on("success", function (file, data) {
      // 上傳成功觸發(fā)的事件
      
    });
  }
});
</script>

<dependency>
  <groupId>commons-fileupload</groupId>
  <artifactId>commons-fileupload</artifactId>
  <version>1.3.2</version>
</dependency>

<!-- 上傳文件攔截，設(shè)置最大上傳文件大小 10M = 10*1024*1024(B) = 10485760 bytes -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
  <property name="maxUploadSize" value="10485760"/>
</bean>

@Controller
public class UploadController {

  @ResponseBody
  @RequestMapping(value = "upload", method = RequestMethod.POST)
  public String upload(MultipartFile dropzFile, HttpServletRequest request) {
   

    // 獲取上傳的原始文件名
    String fileName = dropzFile.getOriginalFilename();
    // 設(shè)置文件上傳路徑
    String filePath = request.getSession().getServletContext().getRealPath("/static/upload");
    // 獲取文件后綴
    String fileSuffix = fileName.substring(fileName.lastIndexOf("."), fileName.length());

    // 判斷并創(chuàng)建上傳用的文件夾
    File file = new File(filePath);
    if (!file.exists()) {
      file.mkdir();
    }
    // 重新設(shè)置文件名為 UUID，以確保唯一
    file = new File(filePath, UUID.randomUUID() + fileSuffix);

    try {
      // 寫入文件
      dropzFile.transferTo(file);
    } catch (IOException e) {
      e.printStackTrace();
    }

   
    return "";
  }
}