Logstash指定ES Mapping问题

1、Logstash配置如下：

 33 output {

 34          elasticsearch{

 35                hosts => ["******:9200"]

 36                index => "admin-tmp-%{[index_name]}-%{+YYYY.MM.dd}"

 37                timeout => 300

 39                 template => "/usr/local/logstash-6.2.4/admin-template.json"

 40                 template_name => "mytest"

 41                 manage_template => false

 42                 template_overwrite => true

 43           }     

 44     stdout {    

 45         codec=>rubydebug

 46     }   

 47 } 

2、Template配置如下：
 

      1 {

      2         "template": "logstash-*",

      3         "version": 60001,

      4         "settings": {

      5                 "index.refresh_interval": "5s",

      6                 "number_of_shards": "2",

      7                 "number_of_replicas": "1"

      8         },

      9         "mappings": {

     10                 "_doc": {

     11                         "dynamic_templates": [{

     12                                 "message_field": {

     13                                         "path_match": "message",

     14                                         "match_mapping_type": "string",

     15                                         "mapping": {

     16                                                 "type": "text",

     17                                                 "norms": false

     18                                         }

     19                                 }

     20                         }, {

     21                                 "string_fields": {

     22                                         "match": "*",

     23                                         "match_mapping_type": "string",

     24                                         "mapping": {

     25                                                 "type": "text",

     26                                                 "norms": false,

     27                                                 "fields": {

     28                                                         "keyword": {

     29                                                                 "type": "keyword",

     30                                                                 "ignore_above": 256

     31                                                         }

     32                                                 }

     33                                         }

     34                                 }

     35                         }],

     36                         "properties": {

     37                                 "myport": {

     38                                         "type": "long"

     39                                 },

     40 

     41                                 "mid": {

     42                                         "type": "long"

     43                                 }

     44                         }

     45                 }

     46         }

     47 }

 
3、写入日志为：
{"mid":"1234567890","myport":12345}
 
4、最后MID和src_port都没有改变：

"mid": { "type": "text", "fields": { "keyword": { "ignore_above": 256, "type": "keyword" } } },
"myport": { "type": "long" },
 
麻烦问一下，我哪里配错了啊？