ElasticSearch添加索引代码实例解析
1. 编写索引内容
节点解释:
settings:配置信息
"number_of_replicas": 0 不需要备份(单节点的ElasticSearch使用)
"mappings": 映射内容
"dynamic":false 是否动态索引,这里使用的是false,表示索引的固定的,不需要修改。
"properties": 属性结构内容
"index":"true" 需要分词处理的结构
type对应的数据类型,text文本(长字符串),integer数字,date时间,keyword单词
elasticsearch 6.X版本的索引文件
{
"settings":{
"number_of_replicas": 0
},
"mappings":{
"house":{
"dynamic":false,
"properties":{
"houseId":{"type":"long"},
"title":{"type":"text", "index":"true"},
"price":{"type":"integer"},
"area":{"type":"integer"},
"createTime":{"type":"date","format":"strict_date_optional_time||epoch_millis"},
"lastUpdateTime":{"type":"date", "format":"strict_date_optional_time||epoch_millis"},
"cityEnName":{"type":"keyword"},
"regionEnName":{"type":"keyword"},
"direction":{"type":"integer"},
"distanceToSubway":{"type":"integer"},
"subwayLineName":{"type":"keyword"},
"subwayStationName":{"type":"keyword"},
"tags":{"type":"text"},
"district":{"type":"keyword"},
"description":{"type":"text", "index":"true"},
"layoutDesc":{"type":"text", "index":"true"},
"traffic":{"type":"text", "index":"true"},
"roundService": {"type": "text", "index": "true"},
"rentWay":{"type":"integer"}
}
}
}
}
elasticsearch 7.X版本的索引文件
{
"settings":{
"number_of_replicas": 0
},
"mappings":{
"dynamic":false,
"properties":{
"title":{"type":"text", "index":"true"},
"price":{"type":"integer"},
"area":{"type":"integer"},
"createTime":{"type":"date","format":"strict_date_optional_time||epoch_millis"},
"lastUpdateTime":{"type":"date", "format":"strict_date_optional_time||epoch_millis"},
"cityEnName":{"type":"keyword"},
"regionEnName":{"type":"keyword"},
"direction":{"type":"integer"},
"distanceToSubway":{"type":"integer"},
"subwayLineName":{"type":"keyword"},
"subwayStationName":{"type":"keyword"},
"tags":{"type":"text"},
"district":{"type":"keyword"},
"description":{"type":"text", "index":"true"},
"layoutDesc":{"type":"text", "index":"true"},
"traffic":{"type":"text", "index":"true"},
"roundService": {"type": "text", "index": "true"},
"rentWay":{"type":"integer"}
}
}
}
2. 创建索引
使用Postmen发送创建索引请求
(1)地址栏后半段是索引名称
(2)请求使用的PUT方式,选择Body,raw形式,采用JSON格式发送
创建成功的显示结果:
{
"acknowledged": true,
"shards_acknowledged": true,
"index": "house"
}
在ElasticSearch-Head里查看结果:
3. 创建索引时的报错:
错误1:Root mapping definition has unsupported parameters
原因:ElasticSearch7.X之后的版本默认不在支持指定索引类型,默认索引类型是_doc(隐含:include_type_name=false),所以在mappings节点后面,直接跟properties就可以了。
问题2:Could not convert [title.index] to boolean
原因:也是新版本的问题,之前版本的index属性写法是"analyze",现在只能设置true, false, "true","false"
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