创建索引

对比关系型数据库，创建索引就等同于创建数据库。

需要记住的是，创建索引需要使用 PUT 请求方式，且该类型的请求是幂等的，也就意味着，无法多次创建相同名称的索引！

创建一个名称为 test_index 的索引：

# 在 kibana 的 Dev Tools 对话框里，只需要这么写，就可以创建该索引了
PUT test_index

# 返回：
{
 # 响应结果
 "acknowledged" : true,
 # 分片结果
 "shards_acknowledged" : true,
 # 索引名称
 "index" : "test_index"
}

# 如果重复添加索引，会返回错误信息 
{
 "error" : {
 "root_cause" : [
 {
 "type" : "resource_already_exists_exception",
 "reason" : "index [test_index/c6nJovSRSjSTTkpIgFy4-g] already exists",
 "index_uuid" : "c6nJovSRSjSTTkpIgFy4-g",
 "index" : "test_index"
 }
 ],
 "type" : "resource_already_exists_exception",
 "reason" : "index [test_index/c6nJovSRSjSTTkpIgFy4-g] already exists",
 "index_uuid" : "c6nJovSRSjSTTkpIgFy4-g",
 "index" : "test_index"
 },
 "status" : 400
}

题外话，使用 PostMan工具或者在 Head插件上都是可以正常操作的（后续都在 kibana中操作演示）。如：

# 选择 PUT请求方式
http:192.168.137.223:9200/test_index

查看索引

可以 Elasticsearch Head插件页面上看到：

es head插件.png

也可以向 ES 服务器发 GET 请求，查看索引信息：

# 查看指定名称的索引，如 test_index
GET test_index

# 结果为
{
 # 索引名
 "test_index" : {
 # 别名
 "aliases" : { },
 # 映射
 "mappings" : { },
 # 设置
 "settings" : {
 # 设置 - 索引
 "index" : {
 "routing" : {
 "allocation" : {
 "include" : {
 "_tier_preference" : "data_content"
 }
 }
 },
 # 设置 - 索引 - 主分片数量
 "number_of_shards" : "1",
 # 设置 - 索引 - 名称
 "provided_name" : "test_index",
 # 设置 - 索引 - 创建时间
 "creation_date" : "1621175229003",
 # 设置 - 索引 - 副分片数量
 "number_of_replicas" : "1",
 设置 - 索引 - 编号
 "uuid" : "bRJGP3RSQIaYxqLxmZRkYg",
 # 设置 - 索引 - 版本
 "version" : {
 "created" : "7120099"
 }
 }
 }
 }
}

# 查看 ES下所有的索引，_cat 表示查看的意思，indices 表示索引
GET _cat/indices?v

# 结果为
health status index      uuid                   pri rep docs.count docs.deleted store.size pri.store.size
yellow open   test_index bRJGP3RSQIaYxqLxmZRkYg   1   1          0            0       208b           208b

上述查看所有索引返回的列表具体含义是：

删除索引

删除索引也很简单，遵循 RestFul风格，只需要将请求类型改为 DELETE 即可。

DELETE test_index</pre>

示例，创建一个索引：

curl -XPUT 'http://10.123.7.3:9200/test_index' -H 'Content-Type: application/json' -d '{
 "settings": {
 "index": {
 "number_of_shards": "5",
 "number_of_replicas": "1",
 "max_result_window" :"60000"
 }
 },
 "mappings": {
 "wellenRoute": {
 "properties": {
 "wellenId": {
 "type": "integer"
 },
 "wellenCode": {
 "type": "keyword"
 },
 "nationalLineType": {
 "type": "integer"
 },
 "wellenType": {
 "type": "integer"
 },
 "wellenStatus": {
 "type": "integer"
 },
 "issueTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "issueUser": {
 "type": "keyword"
 },
 "pickType": {
 "type": "integer"
 },
 "priorityLevel": {
 "type": "integer"
 },
 "operatorGroupName": {
 "type": "keyword"
 },
 "batchNum": {
 "type": "integer",
 "index": false
 },
 "packageNum": {
 "type": "integer",
 "index": false
 },
 "taskNum": {
 "type": "long",
 "index": false
 },
 "shouldPickNum": {
 "type": "long",
 "index": false
 },
 "realPickNum": {
 "type": "long",
 "index": false
 },
 "isCombine": {
 "type": "boolean"
 },
 "packType": {
 "type": "boolean"
 },
 "combineWellenType": {
 "type": "keyword"
 },
 "combineAddress": {
 "type": "integer"
 },
 "wellenMark": {
 "type": "integer"
 },
 "wellenMarkStr": {
 "type": "keyword"
 },
 "downwindAreaId": {
 "type": "integer"
 },
 "collectTips": {
 "type": "keyword"
 },
 "isAbc": {
 "type": "integer"
 },
 "wellenConfigId": {
 "type": "integer"
 },
 "wellenConfigName": {
 "type": "keyword"
 },
 "coWellenCode": {
 "type": "keyword"
 },
 "warehouseId": {
 "type": "integer"
 },
 "subWarehouseIdList": {
 "type": "integer",
 "fields": {
 "keyword": {
 "ignore_above": 256,
 "type": "keyword"
 }
 }
 },
 "createTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "lastUpdateTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "packageLabelNumMark": {
 "type": "boolean"
 },
 "createType": {
 "type": "integer"
 },
 "mainCollectionUser": {
 "type": "keyword"
 },
 "mainCollectionTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "firstSowingStartTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "firstSowingEndTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "secondSowingStartTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "secondSowingEndTime": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "firstSowingUserName": {
 "type": "keyword"
 },
 "operateSubWarehouseId": {
 "type": "integer"
 },
 "areaId": {
 "type": "keyword"
 },
 "isDelete": {
 "type": "boolean"
 },
 "paramIntegerOne": {
 "type": "integer"
 },
 "paramIntegerTwo": {
 "type": "integer"
 },
 "paramLongOne": {
 "type": "long"
 },
 "paramLongTwo": {
 "type": "long"
 },
 "paramStringOne": {
 "type": "keyword"
 },
 "paramStringTwo": {
 "type": "keyword"
 },
 "paramStringThree": {
 "type": "keyword"
 },
 "paramStringFour": {
 "type": "keyword"
 },
 "paramDateOne": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 },
 "paramDateTwo": {
 "type": "date",
 "format": "yyyy-MM-dd HH:mm:ss||epoch_millis"
 }
 }
 }
 }
}'