springboot整合vue实现上传下载文件
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2020-08-25
08:08:24
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springboot整合整合vue实现上传下载文件实现上传下载文件
主要为大家详细介绍了springboot整合vue实现上传下载文件，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
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、上传下载文件api文件文件
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：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;
}
}
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