package com.cn;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Download
*/
@WebServlet("/Download")
public class Download extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Download() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
String name = "aaa.*";// 文件名
String uploadPath = UploadFileHelper.getRepositoryPath() + "//";// 文件来源
String filePath = name;
String fileName = name;
//处理文件名包含中文，浏览器乱码
if (request.getHeader("User-Agent").toLowerCase().indexOf("firefox") > 0) {
fileName = new String(fileName.getBytes("UTF-8"), "ISO8859-1");// firefox浏览器
} else {
if (request.getHeader("User-Agent").toUpperCase().indexOf("MSIE") > 0) {
fileName = URLEncoder.encode(fileName, "UTF-8");// IE浏览器
}
}
response.setContentType("text/plain");
response.setHeader("Location", fileName);
response.reset();
response.setHeader("Cache-Control", "max-age=0");
response.setHeader("Content-Disposition", "attachment; filename="
+ fileName);
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
OutputStream fos = null;
InputStream fis = null;
filePath = uploadPath + filePath;
fis = new FileInputStream(filePath);
bis = new BufferedInputStream(fis);
fos = response.getOutputStream();
bos = new BufferedOutputStream(fos);
int bytesRead = 0;
byte[] buffer = new byte[5 * 1024];
while ((bytesRead = bis.read(buffer)) != -1) {
bos.write(buffer, 0, bytesRead);// 将文件发送到客户端
}
bos.close();
bis.close();
fos.close();
fis.close();
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
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