59 lines
1.8 KiB
Plaintext
59 lines
1.8 KiB
Plaintext
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package th.co.muangthai.endrprint;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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/**
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* Created by IntelliJ IDEA.
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* User: Zizu
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* Date: 2/27/14
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* Time: 11:40 AM
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* To change this template use File | Settings | File Templates.
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*/
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public class DownloadServlet extends HttpServlet {
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protected void doGet( HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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String filePath = request.getParameter("file");
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String type = request.getParameter("type");
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String fileType = "";
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if ("excel".equals(type.toLowerCase()))
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{
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fileType = "application/vnd.ms-excel";
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}
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// Find this file id in database to get file name, and file type
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// You must tell the browser the file type you are going to send
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// for example application/pdf, text/plain, text/html, image/jpg
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response.setContentType(fileType);
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File myFile = new File(filePath);
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// Make sure to show the download dialog
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response.setHeader("Content-disposition","attachment; filename=" + myFile.getName());
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// Assume file name is retrieved from database
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// For example D:\\file\\test.pdf
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// This should send the file to browser
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OutputStream out = response.getOutputStream();
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FileInputStream in = new FileInputStream(myFile);
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byte[] buffer = new byte[4096];
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int length;
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while ((length = in.read(buffer)) > 0){
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out.write(buffer, 0, length);
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}
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in.close();
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out.flush();
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}
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}
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