java 微信小程序 文件上传

package hongbao.web.controller; import hongbao.autoconfig.F4jProperties; import hongbao.autoconfig.FileProperties; import hongbao.common.FileTypeEnum; import hongbao.controller.BaseController; import hongbao.entity.HongBaoFile; import hongbao.file.FileStore; import hongbao.model.JsonResult; import hongbao.model.ResultUtil; import hongbao.model.VoiceStoreDto; import hongbao.service.FileServiceI; import io.swagger.annotations.Api; import io.swagger.annotations.ApiOperation; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.context.properties.EnableConfigurationProperties; import org.springframework.http.HttpRequest; import org.springframework.web.bind.annotation.*; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletResponse; import javax.validation.Valid; import java.io.*; import java.net.HttpURLConnection; import java.net.URL; import java.util.Date; @CrossOrigin @RestController @RequestMapping("/file") public class FileController extends BaseController { @Autowired private FileServiceI fileService; @RequestMapping(value = "/uploadPicFile", method = {RequestMethod.POST}) public JsonResult filePicUpload(@RequestParam(value = "file") MultipartFile file) throws IOException { String path= "文件存储路径"; String fileName=file.getOriginalFilename(); if (!file.isEmpty()) { try { File fileDir = new File(path); if (!fileDir.exists()) {// 判断目录是否存在 fileDir.mkdirs(); //dir.mkdirs(); //多层目录需要调用mkdirs } byte[] fdate = file.getBytes(); FileOutputStream out = new FileOutputStream(path+fileName); out.write(fdate); out.close(); //保存文件 /* 这里写文件业务逻辑 */ return ResultUtil.success(bFile); } catch (IOException e) { e.printStackTrace(); return ResultUtil.error(410, "操作失败"); } }else { return ResultUtil.error(410, "文件不能为空"); } } @RequestMapping(value = "/fileDownload", method = RequestMethod.GET) public void fileDownload(@RequestParam(value = "fileId") String fileId,HttpServletResponse res) { //获取文件 HongBaoFile bFile = fileService.selectById(fileId); res.setHeader("content-type", "application/octet-stream"); res.setContentType("application/octet-stream"); res.setHeader("Content-Disposition", "attachment;filename=" + bFile.getFileName()); byte[] buff = new byte[1024]; BufferedInputStream bis = null; OutputStream os = null; try { os = res.getOutputStream(); bis = new BufferedInputStream(new FileInputStream(new File(bFile.getFilePath()))); 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(); } } } } }