com.springsource.html5expense.controller.FileAttachmentController.java Source code

Java tutorial

Introduction

Here is the source code for com.springsource.html5expense.controller.FileAttachmentController.java

Source

/*
 * Copyright 2012 the original author or authors.
 *
 * Licensed under the Apache 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.apache.org/licenses/LICENSE-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 com.springsource.html5expense.controller;

import java.io.IOException;
import java.io.OutputStream;
import java.sql.Blob;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.hibernate.Hibernate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.FileCopyUtils;
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.multipart.MultipartFile;

import com.springsource.html5expense.model.Attachment;
import com.springsource.html5expense.service.AttachmentService;
import com.springsource.html5expense.service.ExpenseService;

@Controller
public class FileAttachmentController {

    @Autowired
    private ExpenseService expenseService;

    @Autowired
    private AttachmentService attachmentService;

    @RequestMapping(value = "/save", method = RequestMethod.POST)
    public String save(@RequestParam("file") MultipartFile file) {
        try {
            String fileName = file.getOriginalFilename();
            String contentType = file.getContentType();
            Attachment attachment = new Attachment(fileName, contentType, file.getBytes());
            attachmentService.save(attachment);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "redirect:/";
    }

    @RequestMapping(value = "/download")
    public void download(HttpServletRequest request, HttpServletResponse response) throws Exception {
        String attachmentId = request.getParameter("attachmentId");
        Attachment attachment = this.attachmentService.getAttachment(new Long(attachmentId));
        response.setContentType(attachment.getContentType());
        response.setHeader("Content-Disposition", "attachment; filename=\"" + attachment.getFileName() + "\"");
        response.setHeader("cache-control", "must-revalidate");
        OutputStream out = response.getOutputStream();
        out.write(attachment.getContent());
        out.flush();

    }

}