package org.servlet;

import java.io.OutputStream;

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

/**
 * 用于CSV文件下載處理的Servlet
 * @author 沈元杰
 *
 * @date 2008-5-6
 */
public class DownloadCSVFileServlet extends HttpServlet {
	private static final long serialVersionUID = 56890894234786L;

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, java.io.IOException {
		
		// 設置內容格式
		response.setContentType("text/x-msdownload");
		
		// 設置文件頭信息
		response.setHeader("Content-Disposition","attachment; filename=download.csv");
		
		OutputStream outputStream = response.getOutputStream();
		
		String csvText="";
		for(int i=0;i<10;i++){
			for(int j=0;j<10;j++){
				csvText+=i*j+",";
			}
			
			csvText+="\n";
		}
		
		outputStream.write(csvText.getBytes(),0,csvText.getBytes().length);

		outputStream.flush();
		outputStream.close();
		outputStream = null;
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, java.io.IOException {
		doPost(request, response);
	}
}