logstash过滤mysql大字段content字段的html

众多初学者，如果有老的数据，从编辑器里生成出来的html代码片段，导入elasticsearch中，会出现搜索高亮时把html显示出来，体验不好，同步logstash时，需要进行filter过滤器先过滤掉html代码

filter{
    mutate{
        gsub => [ "content", "<script(.*?)</script>", "" ]
    }
    mutate{
        gsub => [ "content", "<iframe(.*?)</iframe>", "" ]
    }
    mutate{
        gsub => [ "content", "<style(.*?)</style>", "" ]
    }
    mutate{
        gsub => [ "content", "<(.*?)>", "" ]
    }
    mutate{
        gsub => [ "content", "&nbsp;", "" ]
    }
}

许多需要先在mysql中过滤，尤其是时间类型字段，建索引时也要指定格式：

"format"=>"yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis||strict_date_optional_time"

SELECT a.id,a.title,b.content,b.content as content_old,CONCAT(a.addtime) AS addtime,CONCAT(a.autotime) AS autotime,a.views,a.zans,a.type_a,a.type_b,CONCAT(a.isshow) AS isshow,CONCAT(a.isdelete) AS isdelete,if(isnull(a.deletetime),0,a.deletetime) as deletetime FROM web_information a