springboot整合vue实现上传下载文件，供大家参考，具体内容如下

环境

springboot 1.5.x

完整代码下载：springboot整合vue实现上传下载

1、上传下载文件api文件

设置上传路径，如例子：

private final static String rootPath =
System.getProperty(“user.home”)+File.separator+fileDir+File.separator;

api接口：

下载url示例:http://localhost:8080/file/download?fileName=新建文本文档.txt

//上传不要用@Controller,用@RestController@RestController@RequestMapping("/file")public class FileController { private static final Logger logger = LoggerFactory.getLogger(FileController.class); //在文件操作中，不用/或者\最好，推荐使用File.separator private final static String fileDir="files"; private final static String rootPath = System.getProperty("user.home")+File.separator+fileDir+File.separator; @RequestMapping("/upload") public Object uploadFile(@RequestParam("file") MultipartFile[] multipartFiles, final HttpServletResponse response, final HttpServletRequest request){ File fileDir = new File(rootPath); if (!fileDir.exists() && !fileDir.isDirectory()) { fileDir.mkdirs(); } try { if (multipartFiles != null && multipartFiles.length > 0) { for(int i = 0;i<multipartFiles.length;i++){ try { //以原来的名称命名,覆盖掉旧的 String storagePath = rootPath+multipartFiles[i].getOriginalFilename(); logger.info("上传的文件：" + multipartFiles[i].getName() + "," + multipartFiles[i].getContentType() + "," + multipartFiles[i].getOriginalFilename() +"，保存的路径为：" + storagePath); Streams.copy(multipartFiles[i].getInputStream(), new FileOutputStream(storagePath), true); //或者下面的 // Path path = Paths.get(storagePath); //Files.write(path,multipartFiles[i].getBytes()); } catch (IOException e) { logger.error(ExceptionUtils.getFullStackTrace(e)); } } } } catch (Exception e) { return ResultUtil.error(e.getMessage()); } return ResultUtil.success("上传成功!"); } /** * http://localhost:8080/file/download?fileName=新建文本文档.txt * @param fileName * @param response * @param request * @return */ @RequestMapping("/download") public Object downloadFile(@RequestParam String fileName, final HttpServletResponse response, final HttpServletRequest request){ OutputStream os = null; InputStream is= null; try { // 取得输出流 os = response.getOutputStream(); // 清空输出流 response.reset(); response.setContentType("application/x-download;charset=GBK"); response.setHeader("Content-Disposition", "attachment;filename="+ new String(fileName.getBytes("utf-8"), "iso-8859-1")); //读取流 File f = new File(rootPath+fileName); is = new FileInputStream(f); if (is == null) { logger.error("下载附件失败，请检查文件“" + fileName + "”是否存在"); return ResultUtil.error("下载附件失败，请检查文件“" + fileName + "”是否存在"); } //复制 IOUtils.copy(is, response.getOutputStream()); response.getOutputStream().flush(); } catch (IOException e) { return ResultUtil.error("下载附件失败,error:"+e.getMessage()); } //文件的关闭放在finally中 finally { try { if (is != null) { is.close(); } } catch (IOException e) { logger.error(ExceptionUtils.getFullStackTrace(e)); } try { if (os != null) { os.close(); } } catch (IOException e) { logger.error(ExceptionUtils.getFullStackTrace(e)); } } return null; }}

访问：http://localhost:8080

上传：

批量上传：

下载：

2.上传大文件配置

/** * 设置上传大文件大小，配置文件属性设置无效 */ @Bean public MultipartConfigElement multipartConfigElement() { MultipartConfigFactory config = new MultipartConfigFactory(); config.setMaxFileSize("1100MB"); config.setMaxRequestSize("1100MB"); return config.createMultipartConfig(); }

3.vue前端主要部分

<template> <div style="top:100px;width:300px"> <el-form :model="form" label-width="220px"> <el-form-item label="请输入文件名" required> <el-input v-model="form.fileName" auto-complete="off" class="el-col-width" required></el-input> </el-form-item> <el-form-item> <el-button size="small" type="primary" @click="handleDownLoad">下载</el-button> </el-form-item> <el-form-item> <el-upload class="upload-demo" :action="uploadUrl" :before-upload="handleBeforeUpload" :on-error="handleUploadError" :before-remove="beforeRemove" multiple :limit="5" :on-exceed="handleExceed" :file-list="fileList"> <el-button size="small" type="primary">点击上传</el-button> <div slot="tip" class="el-upload__tip">一次文件不超过1Gb</div> </el-upload> </el-form-item> </el-form> </div></template>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。