Java tutorial
/** * This file is part of pwt. * * pwt is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser * General Public License as published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * pwt is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser * General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License along with pwt. If not, * see <http://www.gnu.org/licenses/>. */ package fr.putnami.pwt.plugin.spring.file.server.controller; import org.apache.commons.io.IOUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.stereotype.Service; import org.springframework.web.bind.annotation.PathVariable; 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.multipart.commons.CommonsMultipartFile; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import fr.putnami.pwt.core.widget.shared.domain.FileDto; import fr.putnami.pwt.plugin.spring.file.server.support.FileTransfertStore; @Service @Controller public class FileTransfertController { @Autowired private FileTransfertStore store; @RequestMapping(value = "/file/upload/{uploadId}", method = RequestMethod.POST) @ResponseBody public FileDto upload(@PathVariable String uploadId, @RequestParam("data") CommonsMultipartFile multipart, HttpServletRequest request, HttpServletResponse response) { OutputStream out = null; InputStream in = null; try { out = this.store.write(uploadId, multipart.getOriginalFilename(), multipart.getContentType()); in = multipart.getInputStream(); IOUtils.copy(in, out); return this.store.getFileBean(uploadId); } catch (IOException e) { throw new RuntimeException(e.getMessage(), e); } finally { IOUtils.closeQuietly(in); IOUtils.closeQuietly(out); } } @RequestMapping(value = "/file/download/{fileId}", method = RequestMethod.GET) public void downloadFile(@PathVariable String fileId, HttpServletRequest request, HttpServletResponse response) { try { FileDto fileBean = this.store.getFileBean(fileId); if (fileBean == null) { throw new RuntimeException("Aucun fichier trouver " + fileId); } InputStream is = this.store.read(fileId); response.setContentType(fileBean.getMime()); response.setHeader("Content-Disposition", "attachment; filename=\"" + fileBean.getName() + "\""); response.setContentLength((int) fileBean.getContentLength()); IOUtils.copy(is, response.getOutputStream()); response.flushBuffer(); } catch (IOException ex) { throw new RuntimeException("IOError writing file to output stream", ex); } } }