前端

              <el-upload class="upload-demo" :action="item.fileUploadUrl" :show-file-list="false" :limit="1" :multiple="false" :auto-upload="true" :accept="item.accept" :before-upload="beforeUpload":headers="item.uploadHeaders" :data="item.uploadData">上传</el-upload></el-button>

     fileActionList: [{width: 60,name: "合同文件",fileUploadUrl: "*************/importContract",uploadData: {},uploadHeaders: {},accept: ".doc,.docx,.pdf",},],beforeUpload(file, fileList) {let promise = new Promise((resolve) => {this.$nextTick(function () {resolve(true);});});this.$message.success("上传成功");return promise;},// 文件上传操作handleImport(row) {this.fileActionList[0].uploadData = {id: row.id,};this.fileActionList[0].uploadHeaders = {Authorization: Cookie.get("*******"),};},

就是常规的传文件

后端

    @ApiOperation("导入合同文件")@PostMapping("importContract")public Result importData(@RequestParam(value="file") MultipartFile file, @RequestParam(value="id") Long id) throws Exception {return projectService.importData(file, id);}@Overridepublic Result importData(MultipartFile file, Long id) throws Exception {//获取文件名InputStream path = null;FileInputStream fis = null;FileOutputStream fos = null;try {path = file.getInputStream();fis = (FileInputStream) path;File dir = new File("file/project");if (!dir.exists()) {dir.mkdirs();}String filePath = "file/project/" + id + "_" + System.currentTimeMillis() + "_" + file.getOriginalFilename();fos = new FileOutputStream(filePath);int readlen = 0;//字节数组，一次读取8个字节byte[] buf = new byte[8];while ((readlen = fis.read(buf)) != -1) {fos.write(buf, 0, readlen);}Project project = projectRepo.getById(id);project.setContactFile(filePath);projectRepo.save(project);} catch (IOException e) {log.error("" + e);} finally {path.close();fis.close();fos.close();}return Result.success("上传成功");}