用jsp实现直接下载文件而不是在浏览器中打开的功能-JSP教程,Jsp/Servlet

<%

// example:

// <a href="download.jsp?path=img/&name=test.gif">download image</a>

string root = getservletcontext().getrealpath("/");

string path = request.getparameter("path");

string name = request.getparameter("name");

response.setcontenttype("unknown");

response.addheader("content-disposition", "filename=\"" + name + "\"");

try

{

java.io.outputstream os = response.getoutputstream();

java.io.fileinputstream fis = new java.io.fileinputstream(root + path + name);

byte[] b = new byte[1024];

int i = 0;

while ( (i = fis.read(b)) > 0 )

{

os.write(b, 0, i);

}

fis.close();

os.flush();

os.close();

}

catch ( exception e )

{

}

%>