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 }
参考的博客https://blog.csdn.net/heylun/article/details/78732451
内容
springboot部署之后无法获取项目目录的问题:
之前看到网上有提问在开发一个springboot的项目时,在项目部署的时候遇到一个问题:就是我将项目导出为jar包,然后用java -jar 运行时,项目中文件上传的功能无法正常运行,其中获取到存放文件的目录的绝对路径的值为空,文件无法上传。问题链接
不清楚此网友具体是怎么实现的,通常我们可以通过如下方案解决:
//获取跟目录
File path = new File(ResourceUtils.getURL("classpath:").getPath());
if(!path.exists()) path = new File("");
System.out.println("path:"+path.getAbsolutePath());
//如果上传目录为/static/images/upload/,则可以如下获取:
File upload = new File(path.getAbsolutePath(),"static/images/upload/");
if(!upload.exists()) upload.mkdirs();
System.out.println("upload url:"+upload.getAbsolutePath());
//在开发测试模式时,得到的地址为:{项目跟目录}/target/static/images/upload/
//在打包成jar正式发布时,得到的地址为:{发布jar包目录}/static/images/upload/
另外使用以上代码需要注意,因为以jar包发布时,我们存储的路径是与jar包同级的static目录,因此我们需要在jar包目录的application.properties配置文件中设置静态资源路径,如下所示:
#设置静态资源路径,多个以逗号分隔
spring.resources.static-locations=classpath:static/,file:static/
以jar包发布springboot项目时,默认会先使用jar包跟目录下的application.properties来作为项目配置文件。