perl post模拟elasticsearch _mget

##发送消息
use  LWP::UserAgent; 
use LWP;
use Encode;
use LWP::Simple;
use LWP::UserAgent;
use HTTP::Cookies;
use HTTP::Headers;
use HTTP::Response;
use Encode;
use URI::Escape;
use URI::URL;
use JSON;
use Data::Dumper;
  my $ua = LWP::UserAgent->new;
     $ua->agent("Mozilla/5.0 (Windows NT 6.1; rv:30.0) Gecko/20100101 Firefox/30.0");
  my $cookie_jar = HTTP::Cookies->new(
     file=>'lwp_cookies.txt',
     autosave=>1,
     ignore_discard=>1);
     $ua->cookie_jar($cookie_jar);  
   my $login_url ="http://10.10.17.2:9200/_mget/";  
   my $post =  {
    "docs" =>[
      {
      "_index" => "library",
      "_type"=>"books",
      "_id"=>1
       },
        {
      "_index" => "library",
      "_type"=>"books",
      "_id"=>2
       },
        {
      "_index" => "library",
      "_type"=>"books",
      "_id"=>3
       }
       ]
  };
    
    use JSON qw(encode_json);  
    $json_string = encode_json($post);  
  
    my $req = HTTP::Request->new(  
        'POST' => $login_url
    );  
    $req->referer("https://wx.qq.com/?&lang=zh_CN");  
    $req->content_type('application/json; charset=UTF-8')  
      ;    #post请求,如果有发送参数，必须要有这句  
    $req->content("$json_string");    #发送post的参数  
    my $res = $ua->request($req);  
    print $res->content();            #获取的是响应正文  



D:elasticsearch api>perl post_mget_index.pl
{"docs":[{"_index":"library","_type":"books","_id":"1","_version":1,"found":true
,"_source":{
  "title":"Elasticsearch test",
  "name" :{
    "first":"zhao",
    "last":"yangjian"
  },
  "publish_date":"2017-01-29",
  "price":"2421424.99"
  }
},{"_index":"library","_type":"books","_id":"2","_version":1,"found":true,"_sour
ce":{
  "title":"Elasticsearch test",
  "name" :{
    "first":"zhao",
    "last":"yangjian"
  },
  "publish_date":"2017-01-29",
  "price":"85245.99"
  }
},{"_index":"library","_type":"books","_id":"3","_version":2,"found":true,"_sour
ce":{
  "title":"Elasticsearch test",
  "name" :{
    "first":"zhao",
    "last":"yangjian"
  },
  "publish_date":"2017-01-29",
  "price":"23.99"
  }
}]}
D:elasticsearch api>