根据上传的MultipartFile通过springboot转化为File类型并调用通过File文件流的方法上传特定服务器

 1     @PostMapping("uploadExcel")
 2      public ResponseObj uploadExcel(@RequestParam("excelFile") MultipartFile file,@RequestParam("companyId") String companyId,
 3              @RequestParam("productId") String productId,HttpServletRequest request) throws Exception {
 4         ResponseObj response = new ResponseObj();
 5         response.setData(Defined.STATUS_SUCCESS);
 6         response.setMessage("文件上传成功！");
 7         ResponseObj resp = new ResponseObj();
 8         resp.setData(Defined.STATUS_ERROR);
 9         resp.setMessage("不是文件！");
10         AliYunFileSetting setting = new AliYunFileSetting();
11         setting.setAccessKeyId(aliConstants.accessKeyId);
12         setting.setAccessKeySecret(aliConstants.accessKeySecret);
13         setting.setBucketName(aliConstants.bucketName);
14         setting.setEndpoint(aliConstants.endpoint);
15         AliyunFileManager manager = AliyunFileManager.getInstance(setting);
16         if(file.isEmpty()){
17             response.setData(Defined.STATUS_ERROR);
18             response.setMessage("不是文件！");
19             return response;
20            }
21         String fileName = file.getOriginalFilename();
22         long fileSize = file.getSize();
23         File path = new File(ResourceUtils.getURL("classpath:").getPath());
24         if(!path.exists()) path = new File("");
25         File upload = new File(path.getAbsolutePath(),"static/images/upload/");
26         if(!upload.exists()) upload.mkdirs();
27         File tempFile = new File(upload+"/"+fileName);
28         if(!tempFile.getParentFile().exists()){
29             tempFile.getParentFile().mkdirs();//创建父级文件路径
30             tempFile.createNewFile();//创建文件
31         }
32         String relativePath =aliConstants.excelFilePath;//相对路径
33         String dir =  aliConstants.aliyunHostOuter+"/"+relativePath;//云端绝对路径
34         File dest = new File(dir);
35         if(!dest.exists()){ //判断文件目录是否存在
36             dest.mkdir();//
37         }
38         try {
39             file.transferTo(tempFile); 
40             InputStream is = new FileInputStream(tempFile);
41             String suffix=fileName.substring(fileName.lastIndexOf("."));//获取原始文件后缀.xlxs(含点)
42             String newFileName = IdGen.uuid()+suffix;
43             boolean result = manager.upload(is, relativePath, newFileName);//上传文件，并建立随机文件名。
44 //          boolean result = manager.upload(is, dir, fileName);//上传阿里云，固定文件名
45             if(result){
46                  response.setData(dir+"/"+newFileName);//返回新建文件名的绝对路径
47 //                 数据库存入相对路径
48                  BatchRecord batchRecord = new BatchRecord();
49                  batchRecord.setFileName(newFileName);
50                  batchRecord.setFilePath(relativePath+"/"+newFileName);
51                  batchRecord.setFileSize(fileSize);
52                  batchRecord.setIsDelete((byte) 0);
53                  batchRecord.setStatus((byte) 0);
54                  batchRecord.setId(IdGen.uuid());
55                  batchRecord.setCreateTime(DateUtil.getNowTimestamp());
56                  batchRecord.setUpdateTime(DateUtil.getNowTimestamp());
57                  batchRecord.setCompanyId(companyId);
58                  batchRecord.setProductId(productId);
59                  Integer resultNum  = deviceService.addBatchRecord(batchRecord);
60                  if(resultNum>0){
61                  return response;
62                  }
63                  return resp;
64             }else{
65                 resp.setMessage("文件上传失败！");
66                 return resp;
67             }
68         } catch (IllegalStateException e) {
69             // TODO Auto-generated catch block
70             e.printStackTrace();
71             resp.setMessage("文件上传异常！");
72             return resp;
73         } catch (IOException e) {
74             // TODO Auto-generated catch block
75             e.printStackTrace();
76             resp.setMessage("文件上传异常！");
77             return resp;
78         }
79     }