perl - 在 cgi perl 脚本中下载文件

Question

我无法在 cgi perl 中下载该文件。相反，我将内容打印在网页本身上。这是我尝试过的。

代码：

use CGI qw /:standard /;
use CGI;

print "Content-type:text/html\n\n";
my $files_location;
my $ID;
my @fileholder;

$directorypath = "/var/www/cgi-bin/";        
$files_location = $directorypath;
$ID = 'file.txt';
#$ID = param('ID');  

if ($ID eq '') {  
print "You must specify a file to download.";  
} else {  

open(DLFILE, "<$files_location/$ID") || Error('open', 'file');  
@fileholder = <DLFILE>;  
close (DLFILE) || Error ('close', 'file');  

#these are the html codes that forces the browser to open for download  
print "Content-Type:application/x-download\n";  
print "Content-Disposition:attachment;filename=$ID\n\n";  
print @fileholder;  
}

我得到这个：

Content-Type:application/x-download Content-Disposition:attachment;filename=file.txt ih how are u iam hre

文件.txt

我好吗，你好吗？

Answer 1

在第 4 行你有：

print "Content-type:text/html\n\n";

双重\n表示标题结束，内容将随之而来。摆脱它，然后再试一次？

Answer 2

尝试评论

    print "Content-type:text/html\n\n";

Answer 3

您必须将下面的行从顶部移动到 if 循环内部：

print "Content-type:text/html\n\n";

至

if ($ID eq '') {  
print "Content-type:text/html\n\n";
print "You must specify a file to download.";  
}