Java tutorial
/** * Copyright 2008 Sakaiproject Licensed under the * Educational Community License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. You may * obtain a copy of the License at * * http://www.osedu.org/licenses/ECL-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an "AS IS" * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express * or implied. See the License for the specific language governing * permissions and limitations under the License. */ package org.sakaiproject.oaai.controller; import java.io.OutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.sakaiproject.oaai.Constants; import org.sakaiproject.oaai.dao.Data; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; public class FileDownloadController { private final Log log = LogFactory.getLog(FileDownloadController.class); @RequestMapping(method = RequestMethod.POST) public void doDownload(HttpServletRequest request, HttpServletResponse response) { String datedDirectory = request.getParameter("directory"); String action = request.getParameter("action"); String fileName = action + ".csv"; String csvData = data.getCsvData(datedDirectory, fileName); response.setContentType(Constants.MIME_TYPE_CSV); response.setHeader("Content-Disposition", "attachment; filename='" + fileName + "'"); try { OutputStream outputStream = response.getOutputStream(); outputStream.write(csvData.getBytes()); outputStream.flush(); outputStream.close(); } catch (Exception e) { log.error("Error sending CSV file to browser: " + e, e); } } private Data data; public void setData(Data data) { this.data = data; } }