<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<a href="${pageContext.request.contextPath }/downloadServlet">aaa.jpg</a>
</body>
</html>
package com.ui.servlet;
import java.io.IOException;
import java.io.InputStream;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class downloadServlet
*/
@WebServlet("/downloadServlet")
public class downloadServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String fileName="小貓.jpg";
byte[] bytes=fileName.getBytes("utf-8");
fileName=new String(bytes,"ISO8859-1");
//修改相應的頭部屬性值爲content-disposition的值爲attachment
response.setHeader("content-disposition","attachment;filename="+fileName);
InputStream iStream=this.getServletContext().getResourceAsStream("/res/aaa.jpg");
ServletOutputStream oServletOutputStream=response.getOutputStream();
int len=-1;
byte[]bs=new byte[1024];
while((len=iStream.read(bs))!=-1)
{
oServletOutputStream.write(bs, 0, len);
}
oServletOutputStream.close();
iStream.close();
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
}
實現結果:
