search

Home  >  Article  >  Java  >  JSP implements file download

JSP implements file download

巴扎黑
巴扎黑Original
2016-12-20 14:04:281243browse

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>

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();
}
}
%>


Statement：
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
Previous article：Memo for beginners to learn Java (10)Next article：Memo for beginners to learn Java (10)

Related articles

See more