http 响应头之location

<pre name="code" class="html">jrhmpt01:/root# cat login_yylc.pl
use  LWP::UserAgent;
use HTTP::Date qw(time2iso str2time time2iso time2isoz);
use Net::Ping;
use Socket;
use Net::SMTP;
use LWP;
use LWP::Simple;
use LWP::UserAgent;
use HTTP::Cookies;
use HTTP::Headers;
use HTTP::Response;
use Encode;
use URI::Escape;
use URI::URL;
use Data::Dumper;
my $ua = LWP::UserAgent->new;
$ua->timeout(5);
$ua->env_proxy;
$ua->agent("Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0");
my $cookie_jar = HTTP::Cookies->new(
file=>'lwp_cookies.txt',
autosave=>1,
ignore_discard=>1);
$ua->cookie_jar($cookie_jar);

#$var='https://licai.yingyinglicai.com/index.htm';
#<input type="hidden" id="token" name="token" value="3E79AB8CF9603A03DF74DDD6154A8BAD"/>

my $var='https://licai.yingyinglicai.com/user/login.htm';
my $response = $ua->get($var);
$var= $response->decoded_content;
##<input type="hidden" id="token" name="token" value="7C84D7FD0889D23EAA8D266979552D2D"/>

if ($var =~/.*token"\s+value="(.*?)"/.*/)
{print "\$1 is $1\n";
$token=$1;
};

my $login_url = 'https://licai.yingyinglicai.com/user/loginByPwd.do';

my $res = $ua->post($login_url,{
'cell'=>18072xx2237,
'password'=>80xx5,
'token'=>$token
},
'Host'=>'licai.yingyinglicai.com',
'User-Agent'=>'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0'   );
my $homepage;
print "header-----------------\n";
print $res->header('Location');
print "header-----------------\n";

$1 is DC341A499F42389A5EA4841042C7C04F
header----------------- http://licai.yingyinglicai.com/index.htm header-----------------

$h->header( $field )
$h->header( $field => $value )
$h->header( $f1 => $v1, $f2 => $v2, ... )

获取或者设置 一个或者多个header字段的值,header 字段名($field)不是大小写敏感的。

为了使perl 用户生活更简单 需要避免引号在=>操作符前,你可以使用'_' 作为一个替代'-' 在header names

header(）方法接收多个键值对,这意味着你可以更新多个fields在一个领域

Examples:

$header->header(MIME_Version => '1.0',
User_Agent   => 'My-Web-Client/0.01');
$header->header(Accept => "text/html, text/plain, image/*");
$header->header(Accept => [qw(text/html text/plain image/*)]);
@accepts = $header->header('Accept');  # get multiple values
$accepts = $header->header('Accept');  # get values as a single string

响应头:
Connection
keep-alive
Content-Language
zh-CN
Content-Length
0
Date
Wed, 03 Aug 2016 12:22:20 GMT
Location http://licai.yingyinglicai.com/index.htm Server
nginx
Set-Cookie
YYLCSJSESSIONID=f9d49ab5-acc4-4518-a6ab-ec73a6ae39eb; Domain=yingyinglicai.com; Expires=Wed, 03-Aug-2016
12:52:20 GMT; Path=/

print $res->header('Server');  返回nginx