#### 异常问题
es7.x版本创建索引报如下错误：Root mapping definition has unsupported parameters:  [doc
具体信息如下：
```json
{
  "error" : {
    "root_cause" : [
      {
        "type" : "mapper_parsing_exception",
        "reason" : "Root mapping definition has unsupported parameters:  [doc : {dynamic=false, properties={last_event_time={format=yyyy-MM-dd HH:mm:ss, type=date}, storage_date={format=yyyy-MM-dd, type=date}, create_time={format=yyyy-MM-dd HH:mm:ss, type=date}, pid={type=keyword}, appear_num={type=integer}, id={type=long}, ape_id={type=keyword}, event_time={format=yyyy-MM-dd, type=date}}}]"
      }
    ],
    "type" : "mapper_parsing_exception",
    "reason" : "Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters:  [doc : {dynamic=false, properties={last_event_time={format=yyyy-MM-dd HH:mm:ss, type=date}, storage_date={format=yyyy-MM-dd, type=date}, create_time={format=yyyy-MM-dd HH:mm:ss, type=date}, pid={type=keyword}, appear_num={type=integer}, id={type=long}, ape_id={type=keyword}, event_time={format=yyyy-MM-dd, type=date}}}]",
    "caused_by" : {
      "type" : "mapper_parsing_exception",
      "reason" : "Root mapping definition has unsupported parameters:  [doc : {dynamic=false, properties={last_event_time={format=yyyy-MM-dd HH:mm:ss, type=date}, storage_date={format=yyyy-MM-dd, type=date}, create_time={format=yyyy-MM-dd HH:mm:ss, type=date}, pid={type=keyword}, appear_num={type=integer}, id={type=long}, ape_id={type=keyword}, event_time={format=yyyy-MM-dd, type=date}}}]"
    }
  },
  "status" : 400
}

```
我的创建索引语句如下：
```json
PUT test
{
    "settings": {
        "number_of_shards": 20,
        "number_of_replicas": 1
    },
    "mappings": {
        "doc": {
            "dynamic": "false",
            "properties": {
                "id": {
                    "type": "long"
                },
                "pid": {
                    "type": "keyword"
                },
                "appear_num": {
                    "type": "integer"
                },
                "ape_id": {
                    "type": "keyword"
                },
                "last_event_time": {
                    "type": "date",
                    "format": "yyyy-MM-dd HH:mm:ss"
                },
                "storage_date": {
                    "type": "date",
                    "format": "yyyy-MM-dd"
                },
                "event_time": {
                    "type": "date",
                    "format": "yyyy-MM-dd"
                },
                "create_time":{
                	"type": "date",
                    "format": "yyyy-MM-dd HH:mm:ss"
                }
            }
        }
    }
}
```

#### 解决办法
上面问题有提到参数doc不支持，后面我反应过来才想起es7.0版本之后不再需要type doc，把上面语句中的doc删掉，再运行就可以创建索引了。
语句如下：
```json
PUT test
{
    "settings": {
        "number_of_shards": 20,
        "number_of_replicas": 1
    },
    "mappings": {
		"dynamic": "false",
		"properties": {
			"id": {
				"type": "long"
			},
			"pid": {
				"type": "keyword"
			},
			"appear_num": {
				"type": "integer"
			},
			"ape_id": {
				"type": "keyword"
			},
			"last_event_time": {
				"type": "date",
				"format": "yyyy-MM-dd HH:mm:ss"
			},
			"storage_date": {
				"type": "date",
				"format": "yyyy-MM-dd"
			},
			"event_time": {
				"type": "date",
				"format": "yyyy-MM-dd"
			},
			"create_time":{
				"type": "date",
				"format": "yyyy-MM-dd HH:mm:ss"
			}
            
        }
    }
}
```

ClassInstance

Es创建索引mapping时报错:Root mapping definition has unsupported parameters: [doc

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