如何通过Ajax将数据发送到Perl脚本? [英] How to send data to Perl script via ajax?
问题描述
我想通过ajax将数据发送到Perl脚本，并从中接收回json格式.但这是行不通的.我知道以下脚本有问题.有人知道如何解决吗?
I want to send data to Perl script via ajax, and to receive a json format back from it. But it doesn't work. I know something is wrong in the following scripts. Does anyone know how to fix it?
jQuery代码:
$("#test").click(function(){
var ID = 100;
var data = {
data_id : ID
};
$.ajax({
type: "POST",
url: "ajax.cgi",
data: data,
success: function(msg){
window.alert(msg);
}
});
});
ajax.cgi(Perl脚本):
ajax.cgi (perl script):
#!/usr/bin/perl
use CGI;
use DBI;
$cgi = CGI->new;
# Here I'd like to receive data from jQuery via ajax.
$id = $cgi->param('data_id');
$json = qq{{"ID" : "$id"}};
$cgi->header(-type => "application/json", -charset => "utf-8");
print $json;
exit;
推荐答案
不确定现在是否解决了这个问题，但也许其他人迷惑了这个问题并想知道它是如何工作的.
Not sure whether you solved it by now but maybe someone else stumbles over this question and wonders how it works.
请在下面找到代码.如果要运行此代码，只需将index.html文件复制到html目录(例如/var/www/html)，然后将perl脚本复制到cgi-bin目录(例如/var/www/cgi-bin).确保使perl脚本可执行！在下面的代码中，cgi目录位于/cgi-bin/ajax/stackCGI中-请相应地进行更改.
Please find the code below. If you want to run this code, just copy the index.html file to your html directory (e.g. /var/www/html) and the perl script to your cgi-bin directory (e.g. /var/www/cgi-bin). Make sure to make the perl script executable! In my code below, the cgi directory is in /cgi-bin/ajax/stackCGI - please change that accordingly.
我还添加了一个有关如何使用Perl cgi，AJAX和JSON的高级示例:点击.
I also added a slightly more advanced example on how to use Perl cgi, AJAX and JSON: click and also one more example on how to pass an array from Javascript to Perl via AJAX using JSON: click.
index.html
index.html
<!DOCTYPE html>
<html>
<head>
<title>Testing ajax</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$("#test").click(function(){
var ID = 100;
$.ajax({
type: 'POST',
url: '/cgi-bin/ajax/stackCGI/ajax.pl',
data: { 'data_id': ID },
success: function(res) {
alert("your ID is: " + res.result);
},
error: function() {alert("did not work");}
});
})
})
</script>
</head>
<body>
<button id="test" >Testing</button>
</body>
</html>
ajax.pl
#!/usr/bin/perl
use strict;
use warnings;
use JSON; #if not already installed, just run "cpan JSON"
use CGI;
my $cgi = CGI->new;
print $cgi->header('application/json;charset=UTF-8');
my $id = $cgi->param('data_id');
#convert data to JSON
my $op = JSON -> new -> utf8 -> pretty(1);
my $json = $op -> encode({
result => $id
});
print $json;
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