Jsp used for direct download files function

Abstract: The realization of direct download files jsp function

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/ / Sometimes a user wants to download files, but this type of file in the system associated with the browser, the results will become open in IE.
/ / A common word, excel, such as pdf. Therefore the documents translated into data flow to its browser does not know the type of document to download purposes.
/ / Usage:
/ / Download image

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)
(
)
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