图片-文件上传下载

 ???/** ????* 上传文件 ????* @return ????*/ ???@RequestMapping(value = "/uploadfile", method = RequestMethod.POST) ???public Result uploadImage(@RequestParam("file") MultipartFile file) { ???????try { ???????????if (file.isEmpty()) { ???????????????return Result.error("文件为空"); ???????????} ???????????// 获取文件名 ???????????String fileName = System.currentTimeMillis()+ file.getOriginalFilename(); ???????????// 设置文件存储路径 ???????????String path = uploadPathConfig.getEventimgpath() + File.separator + fileName; ???????????File dest = new File(path); ???????????// 检测是否存在目录 ???????????if (!dest.getParentFile().exists()) { ???????????????dest.getParentFile().mkdirs();// 新建文件夹 ???????????} ???????????// 文件写入 ???????????file.transferTo(dest); ???????????Map<String, Object> result = new HashMap<String, Object>(); ???????????result.put("path", File.separator + fileName); ???????????return Result.ok().put("result", result); ???????} catch (IllegalStateException e) { ???????????e.printStackTrace(); ???????} catch (IOException e) { ???????????e.printStackTrace(); ???????} ???????return Result.error("上传失败"); ???}

 ???@RequestMapping(value = "/files", method = RequestMethod.POST) ???public Result imgs(@RequestParam("file") MultipartFile[] file) { ???????try { ???????????List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); ???????????for (int i = 0; i < file.length; i++) { ???????????????if (file[i].isEmpty()) { ???????????????????return Result.error("文件为空"); ???????????????} ???????????????// 获取文件名《后缀》 ???????????????String fileName = System.currentTimeMillis()+ file[i].getOriginalFilename(); ???????????????// 设置文件存储路径《后缀》 ???????????????String path = uploadPathConfig.getEventimgpath() + File.separator + fileName; ???????????????File dest = new File(path); ???????????????// 检测是否存在目录 ???????????????if (!dest.getParentFile().exists()) { ???????????????????dest.getParentFile().mkdirs();// 新建文件夹 ???????????????} ???????????????// 文件写入 ???????????????file[i].transferTo(dest); ???????????????????????????????《后缀名》 ???????????????String str = ?fileName.substring(fileName.lastIndexOf(".") + 1); ???????????????SysFile sysFile = new SysFile(); ???????????????sysFile.setFilepath(fileName); ???????????????sysFile.setFilename(fileName); ???????????????????????????????????《后缀名写入。列如.jpg.mp4》 ???????????????sysFile.setSuffix(str); ???????????????sysFileService.insert(sysFile); ???????????????Map<String, Object> map = new HashMap<String, Object>(); ???????????????map.put("fileid", sysFile.getFileid()); ???????????????list.add(map); ???????????} ???????????????????????return Result.ok().put("result", list); ???????} catch (IllegalStateException e) { ???????????e.printStackTrace(); ???????} catch (IOException e) { ???????????e.printStackTrace(); ???????} ???????return Result.error("上传失败"); ???}

 ???@RequestMapping(value = "/files", method = RequestMethod.POST) ???public Result imgs(@RequestParam("file") MultipartFile[] file) { ???????try { ???????????List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); ???????????for (int i = 0; i < file.length; i++) { ???????????????if (file[i].isEmpty()) { ???????????????????return Result.error("文件为空"); ???????????????} ???????????????// 获取文件名《后缀》 ???????????????String fileName = System.currentTimeMillis()+ file[i].getOriginalFilename(); ???????????????// 设置文件存储路径《后缀》 ???????????????String path = uploadPathConfig.getEventimgpath() + File.separator + fileName; ???????????????File dest = new File(path); ???????????????// 检测是否存在目录 ???????????????if (!dest.getParentFile().exists()) { ???????????????????dest.getParentFile().mkdirs();// 新建文件夹 ???????????????} ???????????????// 文件写入 ???????????????file[i].transferTo(dest); ???????????????????????????????《后缀名》 ???????????????String str = ?fileName.substring(fileName.lastIndexOf(".") + 1); ???????????????SysFile sysFile = new SysFile(); ???????????????sysFile.setFilepath(fileName); ???????????????sysFile.setFilename(fileName); ???????????????????????????????????《后缀名写入。列如.jpg.mp4》 ???????????????sysFile.setSuffix(str); ???????????????sysFileService.insert(sysFile); ???????????????Map<String, Object> map = new HashMap<String, Object>(); ???????????????map.put("fileid", sysFile.getFileid()); ???????????????list.add(map); ???????????} ???????????????????????return Result.ok().put("result", list); ???????} catch (IllegalStateException e) { ???????????e.printStackTrace(); ???????} catch (IOException e) { ???????????e.printStackTrace(); ???????} ???????return Result.error("上传失败"); ???}

 ???@RequestMapping(value = "/uploadimages", method = RequestMethod.POST) ???public Result uploadExcel(HttpServletRequest request) { ???????try { ???????????List<MultipartFile> files =((MultipartHttpServletRequest)request).getFiles("files"); ???????????if (files.size() == 0) { ???????????????return Result.error("文件为空"); ???????????} ???????????JSONArray fileArr = new JSONArray(); ???????????for(MultipartFile file : files){ ???????????????// 获取文件名 ???????????????String fileName = System.currentTimeMillis() + file.getOriginalFilename(); ???????????????// 设置文件存储路径 ???????????????String path = uploadPathConfig.getEventimgpath() + File.separator + fileName; ???????????????File dest = new File(path); ???????????????// 检测是否存在目录 ???????????????if (!dest.getParentFile().exists()) { ???????????????????dest.getParentFile().mkdirs();// 新建文件夹 ???????????????} ???????????????// 文件写入 ???????????????file.transferTo(dest); ???????????????JSONObject fileObj = new JSONObject(); ???????????????fileObj.put("imgpath", File.separator + fileName); ???????????????fileArr.add(fileObj); ???????????} ???????????return Result.ok().put("result", fileArr); ???????} catch (IllegalStateException e) { ???????????e.printStackTrace(); ???????} catch (IOException e) { ???????????e.printStackTrace(); ???????} ???????return Result.error("上传失败"); ???}

@RequestMapping(value = "/fileDownload", method = RequestMethod.POST) ???public Result downloadFile(HttpServletRequest request, HttpServletResponse response,String ?fileName,String fileType) { ???????String path=null; ???????if (fileName != null) { ???????????// 设置文件存储路径 ???????????switch (fileType) { ???????????????case "1": ???????????????????// 图片 ???????????????????path = uploadPathConfig.getEventimgpath(); ???????????????????break; ???????????????case "2": ???????????????????// excel文件 ???????????????????path = uploadPathConfig.getExcelpath(); ???????????????????break; ???????????????case "3": ???????????????????// 压缩包 ???????????????????path = uploadPathConfig.getZippath(); ???????????????????break; ???????????????case "4": ???????????????????// 文件 ???????????????????path = uploadPathConfig.getFilepath(); ???????????????????break; ???????????????default: ???????????????????path = uploadPathConfig.getEventimgpath(); ???????????????????break; ???????????} ???????} ???????File file = new File(path , fileName); ???????if (file.exists()) { ???????????response.setContentType("application/force-download");// 设置强制下载不打开 ???????????response.addHeader("Content-Disposition", "attachment;fileName=" + fileName);// 设置文件名 ???????????byte[] buffer = new byte[1024]; ???????????FileInputStream fis = null; ???????????BufferedInputStream bis = null; ???????????try { ???????????????fis = new FileInputStream(file); ???????????????bis = new BufferedInputStream(fis); ???????????????OutputStream os = response.getOutputStream(); ???????????????int i = bis.read(buffer); ???????????????while (i != -1) { ???????????????????os.write(buffer, 0, i); ???????????????????i = bis.read(buffer); ???????????????} ???????????????System.out.println("success"); ???????????} catch (Exception e) { ???????????????e.printStackTrace(); ???????????} finally { ???????????????if (bis != null) { ???????????????????try { ???????????????????????bis.close(); ???????????????????} catch (IOException e) { ???????????????????????e.printStackTrace(); ???????????????????} ???????????????} ???????????????if (fis != null) { ???????????????????try { ???????????????????????fis.close(); ???????????????????} catch (IOException e) { ???????????????????????e.printStackTrace(); ???????????????????} ???????????????} ???????????} ???????}else{ ???????????return Result.error("下载失败"); ???????} ???????return Result.ok("下载成功"); ???}

@RequestMapping(value = "/delFile", method = RequestMethod.POST) ???public Result removeFileById(String fileid) { ???????try { ???????????SysFile sysFile = sysFileService.selectById(fileid); ???????????File file=new File(uploadPathConfig.getEventimgpath()+"/"+sysFile.getFilepath()); ???????????if(file.exists()&&file.isFile()) ???????????????file.delete(); ???????????sysFileService.deleteById(fileid); ???????????return Result.ok(); ???????} catch (Exception e) { ???????????e.printStackTrace(); ???????????return Result.error("图片删除失败"); ???????} ???} ???