저는 고급 프런트엔드 처리에 익숙하지 않기 때문에 MVC를 통해 직접 콘텐츠를 전송하고 싶어서 프런트엔드에 값을 전달하는 문제를 처리하기 위해 Thymeleaf 템플릿을 선택했습니다.
application.properties 파일
#访问超市时间的设置ribbon. ConnectTimeout=60000ribbon. ReadTimeout=60000 # 开启多文件上传 spring.servlet.multipart. enabled=true spring.servlet.multipart.file-size-threshold =0 #单个文件大小 #spring.http.multipart.maxFileSize=10MB #设置总上传的数据大小 #spring.http.multipart.maxRequestSize=10MB #升级到2.0后需要改成 #单个文件大小spring.servlet. multipart.max-file-size=10Mb #设置总上传的数据大小 spring.servlet.multipart. max-request-size=10Mb #上传路径upload_path=D:/file_statics #下载路径download_path=D:/file_statics
2.controller code
import java.io. BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.OutputStream; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.Arrays; import java.util.List; import java.util.stream. Collectors;import javax.servlet. http.HttpServletResponse;import org. apache.commons.lang3.StringUtils; import org.springframework.beans. factory.annotation.Value;import org. springframework.web.bind.annotation. RequestMapping;import org.springframework. web.bind.annotation.RequestMethod;import org. springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation. ResponseBody;import org.springframework.web. bind.annotation.RestController;import org. springframework.web.multipart.MultipartFile; import org.springframework.web.servlet. mvc.support.RedirectAttributes;import com. vinord.common.model.ResultView;import com. vinord.common.util.Constains;@RestController public class FileUploadController { @Value("${upload_path}") private final String upload_path ="D:/file_statics"; @Value("${download_path}") private final String download_path ="D:/file_statics"; /** * 单个文件上传 * @param file * @param redirectAttributes * @return */ @RequestMapping("uploadFile") public ResultView singleFileUpload(@RequestParam("file") MultipartFile file,RedirectAttributes redirectAttributes) { ResultView result = new ResultView(); if (file.isEmpty()) { redirectAttributes.addFlashAttribute("message", "请选择文件进行上传"); result.setCode(Constains.STATUS_ZERO); result.setMsg("请选择文件进行上传!"); return result; } try { byte[] bytes = file.getBytes(); String filename = file.getOriginalFilename(); String name = filename.substring(0,filename.lastIndexOf(".")); String formatDate = System.currentTimeMillis()+""; int index = filename.indexOf("."); String savefilename = name + formatDate+ filename.substring(index); Path path = Paths.get(upload_path+ File.separator+savefilename); Files.write(path, bytes); redirectAttributes.addFlashAttribute("message","成功上传文件: '" + file.getOriginalFilename() + "'"); result.setCode(Constains.STATUS_ONE); result.setMsg("上传成功"); } catch (IOException e) { e.printStackTrace(); } return result; } /** * 多个文件上传 * @param files * @return */ @ResponseBody @RequestMapping(value = "/upload/batch", method = RequestMethod.POST) public ResultView batchUpload(@RequestParam("files")MultipartFile[] files) { ResultView result = new ResultView(); String uploadedFileName = Arrays.stream(files).map(x -> x.getOriginalFilename()) .filter(x -> !StringUtils.isEmpty(x)).collect(Collectors.joining(" , ")); if (StringUtils.isEmpty(uploadedFileName)) { result.setCode(Constains.STATUS_ZERO); result.setMsg("文件上传失败,文件为空!"); return result; } try { saveUploadedFiles(Arrays.asList(files)); } catch (IOException e) { result.setCode(Constains.STATUS_ZERO); result.setMsg("文件上传异常"+e.getMessage()); return result; } result.setCode(Constains.STATUS_ONE); result.setMsg("上传成功"); return result; } private void saveUploadedFiles(List<MultipartFile> files) throws IOException { for (MultipartFile file : files) { if (file.isEmpty()) { continue; } byte[] bytes = file.getBytes(); String filename = file.getOriginalFilename(); String name = filename.substring(0,filename.lastIndexOf(".")); String formatDate = System.currentTimeMillis()+""; int index = filename.indexOf("."); String savefilename = name + formatDate+ filename.substring(index); Path path = Paths.get(upload_path+ File.separator+ savefilename); Files.write(path, bytes); } } /** * 下载 * @param res * @throws IOException */ @RequestMapping("download") public void download(HttpServletResponse res) throws IOException { String fileName = "CustomLogControl1536898060373.java"; res.setHeader("content-type", "application/octet-stream"); res.setContentType("application/octet-stream"); res.setHeader("Content-Disposition", "attachment;filename=" + fileName); byte[] buff = new byte[1024]; BufferedInputStream bis = null; OutputStream os = null; try { os = res.getOutputStream(); bis = new BufferedInputStream(new FileInputStream(new File(download_path+ File.separator+fileName))); int i = bis.read(buff); while (i != -1) { os.write(buff, 0, buff.length); os.flush(); i = bis.read(buff); } } catch (IOException e) { e.printStackTrace(); } finally { if (bis != null) { try { bis.close(); } catch (IOException e) { e.printStackTrace(); } } } } }
관련 권장 사항:
SpringBoot+Thymeleaf는 html 파일 소개(유사한 포함 기능)를 구현합니다._html/css_WEB-ITnose
위 내용은 springboot 업로드 파일을 만드는 방법의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!