codec ruby和json格式输出

zjtest7-frontend:/usr/local/logstash-2.3.4/config# cat geoip.conf
input {stdin {} }

filter {
  geoip {
   source =>"message"
 }
} 

output {
      stdout {
                        codec => ruby
                }
}

183.60.92.253
{
       "message" => "183.60.92.253",
      "@version" => "1",
    "@timestamp" => "2016-08-25T08:37:44.725Z",
          "host" => "0.0.0.0",
         "geoip" => {
                      "ip" => "183.60.92.253",
           "country_code2" => "CN",
           "country_code3" => "CHN",
            "country_name" => "China",
          "continent_code" => "AS",
             "region_name" => "30",
               "city_name" => "Guangzhou",
                "latitude" => 23.11670000000001,
               "longitude" => 113.25,
                "timezone" => "Asia/Chongqing",
        "real_region_name" => "Guangdong",
                "location" => [
            [0] 113.25,
            [1] 23.11670000000001
        ]
    }
}

zjtest7-frontend:/usr/local/logstash-2.3.4/config# cat geoip.conf
input {stdin {} }

filter {
  geoip {
   source =>"message"
 }
} 

output {
      stdout {
                        codec => json
                }
}

zjtest7-frontend:/usr/local/logstash-2.3.4/config# ../bin/logstash -f geoip.conf
Settings: Default pipeline workers: 1
Pipeline main started
183.60.92.253
{"message":"183.60.92.253","@version":"1","@timestamp":"2016-08-25T08:43:09.674Z","host":"0.0.0.0","geoip":

{"ip":"183.60.92.253","country_code2":"CN","country_code3":"CHN","country_name":"China","continent_code":"AS","region_name":"30","city_name":"Guangzhou","latitude":23.11670000000001,"longitude":113

.25,"timezone":"Asia/Chongqing","real_region_name":"Guangdong","location":[113.25,23.11670000000001]}}