Question : How to get download csv file using java servlet ?

I need to download the data file from database with csv format using java/servlet.I would like to download the csv file when the download button.

Here with attahed the source code , please let know the code should add here.

Please correct the source the code here.What are the changes want to do here ?

Attachments:

csv.txt (1 KB) (File Type Details)

csv servlet source code

Answer : How to get download csv file using java servlet ?

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   protected void doGet(HttpServletRequest request,
        HttpServletResponse response) throws ServletException, IOException {
        String connectionURL = "jdbc:mysql://localhost/csv";
        String url = request.getParameter("WEB_URL");
        Statement stmt = null;
        Connection con = null;

        try {
            String filename = "SearchCases.csv";
            Class.forName("com.mysql.jdbc.Driver").newInstance();
            con = DriverManager.getConnection(connectionURL, "root", "root");
            stmt = con.createStatement();

            String qry = "select * from user_managecase";
            ResultSet rst = stmt.executeQuery(qry);
            response.setContentType("text/csv");
            response.setHeader("Content-disposition", "attachment; filename=" + filename);
	    resultSetToCsv(rst, response.getWriter());

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            con.close();
        }
    }