Open the page in the browser to download the program code (php/jsp/java) _ PHP Tutorial

Open the page in the browser to download the program code (phpjspjava ). If you need to learn the program code for file download (phpjspjava) on the browser's page, refer to it. The configuration in tomcat is as follows: Copy the code mime-mappingexten and open the page to download the program code (php/jsp/java). For more information, see.

The configuration in tomcat is as follows:

The code is as follows:
Txt Application/octet-stream Jpg Application/octet-stream

For the above configuration, a download prompt box appears when you access resources with the extension txt or jpg. if you only need to display a download prompt box for some of the mentioned resources, the above configuration will not work, the solution is to set content-type in the resource response header, for example:

Php

The code is as follows:
Header ("Content-type: application/octet-stream "); Header ('content-Disposition: attachment; filename = "downloaded.txt "');

Download file programs

The code is as follows:

Header ("content-type: text/html; charset = utf-8 "); $ File_name = $ _ GET ['name']; // the actual file name of the server $ File_realName = urldecode ($ _ GET ['real']); // URL encoded database file name $ File_dir = "upload /"; $ File = fopen ($ file_dir. $ file_name, "r"); // open the file // Input file tag Header ("Pragma: public "); Header ("Expires: 0 "); Header ("Content-type: application/octet-stream "); Header ("Accept-Ranges: bytes "); Header ("Accept-Length:". filesize ($ file_dir. $ file_name )); Header ("Content-Disposition: attachment; filename =". iconv ("UTF-8", "GB2312 // transcoder", $ file_realName )); // Output file content Echo fread ($ file, filesize ($ file_dir. $ file_name )); Fclose ($ file ); Exit; ?>

Java

The code is as follows:
Response. setContentType ("application/octet-stream "); Resp. setHeader ("Content-Disposition", "attachment; filename =" downloaded.txt ");

If you need to set a saved name for the download, you can use the Content-Disposition attribute to specify it.

Instance

The code is as follows:

<% @ Page language = "java" contentType = "application/x-msdownload" import = "java. io. *, java.net. *" pageEncoding = "gbk" %> <% Response. reset (); // either or not Response. setContentType ("application/x-download"); // Set it to download application/x-download ///.. /.. /Back to the WEB-INF/classes two levels to the application root directory, pay attention to Tomcat and WebLogic below this sentence to get the path is different, WebLogic in the path does not last/ ServletContext context = session. getServletContext (); String realContextPath = context. getRealPath ("") + "\ plan \ planning data template.xls "; String filenamedisplay = "planning data template.xls "; Filenamedisplay = URLEncoder. encode (filenamedisplay, "UTF-8 "); Response. addHeader ("Content-Disposition", "attachment; filename =" + filenamedisplay ); OutputStream output = null; FileInputStream FCM = null; Try { Output = response. getOutputStream (); FCM = new FileInputStream (realContextPath ); Byte [] B = new byte [1024]; Int I = 0; While (I = FCM. read (B)> 0) { Output. write (B, 0, I ); } Output. flush (); } Catch (Exception e) { System. out. println ("Error! "); E. printStackTrace (); } Finally { If (FS! = Null) { FCM. close (); FS = null; } If (output! = Null) { Output. close (); Output = null; } } %>

For more information about tracing (php/jsp/java), see. The configuration in tomcat is as follows: the code is mime-mapping exten...