java.lang.NoSuchMethodException: [Lorg.springframework.web.multipart.MultipartFile;.<init>()  at java.lang.Class.getConstructor0(Unknown Source)  at java.lang.Class.getDeclaredConstructor(Unknown Source)  at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:104)  at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.createAttribute(ModelAttributeMethodProcessor.java:137)  at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.createAttribute(ServletModelAttributeMethodProcessor.java:80)

@RequestMapping(value="uploadFilesForWEditor",method={RequestMethod.GET,RequestMethod.POST})  @ResponseBody  public static Map<String,Object> uploadFilesForWEditor(@RequestParam("files")MultipartFile[] files,HttpServletRequest request,HttpServletResponse response){    Map<String,Object> map=new HashMap<>();    List<String> url = new ArrayList<>();    for (int i = 0; i < files.length; i++) {      String result=FileUploadUtils.fileUpload(files[i], request, response);      if(result!=""){        url.add(result);      }    }    if(url.size()>0){      map.put("errno",0);      map.put("msg","上傳成功");      map.put("data",url);    }else{      map.put("errno",1);      map.put("msg","上傳失敗");      map.put("data",url);    }    return map;  }

public static String fileUpload(MultipartFile file,HttpServletRequest request,HttpServletResponse response){    //獲取圖片的原名字    String oldName=file.getOriginalFilename();    String timeName=System.currentTimeMillis()+"_";    String newName=timeName+oldName;      //獲取項目的路徑 在項目路徑下新建文件夾    String path= "D:/uploadFile";    //新建 uploadFile 文件夾    File parentPath=new File(path);    if(!parentPath.exists()){      parentPath.mkdirs();    }    String src="";    try {      file.transferTo(new File(parentPath,newName));      File theFile=new File(parentPath+"/"+newName);      if(theFile.exists()){        //拼接圖片的相對路徑作為URL        src="/"+newName;      }else{        src="";      }    } catch (IllegalStateException e) {      e.printStackTrace();    } catch (IOException e) {      e.printStackTrace();    }    return src;  }