简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home > Java > javaTutorial > body text

JSP implements file download

巴扎黑
Release： 2016-12-20 14:04:28
Original
1216 people have browsed it

showLink.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>download file</title>
</head> 
<body>
<a href="download.jsp">click here</a>
</body>
</html>
Copy after login

download.jsp

<%@ page language="java"
contentType="application/x-msdownload; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.io.*"%>
<%@ page import="java.net.*"%>
<%
response.reset();
response.setContentType("application/x-download");
String realPath = application.getRealPath("download");
String fileName = "bbb.txt";
fileName = URLEncoder.encode(fileName, "UTF-8");
response.addHeader("Content-Disposition", "attachment;filename="
+ fileName);
FileInputStream fis = null;
OutputStream os = null;
try {
fis = new FileInputStream(realPath + "/" + fileName);
os = response.getOutputStream();
byte[] bbuf = new byte[1024];
int hasRead = 0;
while ((hasRead = fis.read(bbuf)) > 0) {
os.write(bbuf, 0, hasRead);
}
os.flush();
out.clear();
out = pageContext.pushBody();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (fis != null) {
fis.close();
}
}
%>
Copy after login


Related labels：
jsp
source：php.cn
Previous article：Memo for beginners to learn Java (10) Next article：Easily process XML data in .NET Framework (2-1)
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
function_exists() cannot determine the custom function Function test () {return true;} if (function_exists ('test')) {echo "test is function...
From 2024-04-29 11:01:01
0
2
1453
How to display the mobile version of Google Chrome Hello teacher, how can I change Google Chrome into a mobile version?
From 2024-04-23 00:22:19
0
9
1618
The child window operates the parent window, but the output does not respond. The first two sentences are executable, but the last sentence cannot be implemented.
From 2024-04-19 15:37:47
0
1
1385
There is no output in the parent window document.onclick = function(){ window.opener.document.write('I am the output of the child ...
From 2024-04-18 23:52:34
0
1
1305
Where is the courseware about CSS mind mapping? Courseware
From 2024-04-16 10:10:18
0
0
1357
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！