elasticsearch Curl 基本操作

骑猪看日落 2022-04-24 05:36 231阅读 0赞

创建文档：  
curl -X PUT “localhost:9200/website/blog/2” -H ‘Content-Type: application/json’ -d’  
\{  
“title”: “My first blog entry”,  
“text”: “Just trying this out…”,  
“date”: “2014/01/01”  
\}  
’  
取回文档：  
curl -X GET “localhost:9200/website/blog/123?pretty”  
在请求的查询串参数中加上 pretty 参数， 正如前面的例子中看到的，这将会调用 Elasticsearch 的 pretty-print 功能，该功能 使得 JSON 响应体更加可读。但是， \_source字段不能被格式化打印出来。相反，我们得到的 \_source 字段中的 JSON 串，刚好是和我们传给它的一样。

返回文档的一部分：  
curl -X GET “localhost:9200/website/blog/123?\_source=title,text”

检查文档是不是存在：  
curl -i -XHEAD [http://localhost:9200/website/blog/123][http_localhost_9200_website_blog_123]

删除文档：  
DELETE /website/blog/123

更新文档  
curl -X POST “localhost:9200/website/blog/123/\_update” -H ‘Content-Type: application/json’ -d’  
\{  
“doc” : \{  
“tags” : \[ “testing” \],  
“views”: 0  
\}  
\}  
’  
使用脚本更新文档  
curl -X POST “localhost:9200/website/blog/123/\_update” -H ‘Content-Type: application/json’ -d’  
\{  
“script” : “ctx.\_source.views+=1”  
\}  
‘  
更新文档的字段可能不存在,使用upsert 关键字，并且具有初始化的值  
curl -X POST “localhost:9200/website/blog/123/\_update” -H ‘Content-Type: application/json’ -d’  
\{  
“script” : “ctx.\_source.views+=1”,  
“upsert”: \{  
“views”: 1  
\}  
\}  
‘  
更新和冲突，使retry\_on\_conflict 多次尝试更新  
curl -X POST “localhost:9200/website/blog/123/\_update?retry\_on\_conflict=5” -H ‘Content-Type: application/json’ -d’  
\{  
“script” : “ctx.\_source.views+=1”,  
“upsert”: \{  
“views”: 0  
\}  
\}  
’  
取回多个文档  
curl -X GET “localhost:9200/\_mget” -H ‘Content-Type: application/json’ -d’  
\{  
“docs” : \[  
\{  
“\_index” : “website”,  
“\_type” : “blog”,  
“\_id” : 2  
\},  
\{  
“\_index” : “website”,  
“\_type” : “blog”,  
“\_id” : 1,  
“\_source”: “views”  
\}  
\]  
\}  
’  
代价较小的批量操作  
curl -X POST “localhost:9200/\_bulk” -H ‘Content-Type: application/json’ -d’  
\{ “delete”: \{ “\_index”: “website”, “\_type”: “blog”, “\_id”: “1” \}\}  
\{ “create”: \{ “\_index”: “website”, “\_type”: “blog”, “\_id”: “123” \}\}  
\{ “title”: “My first blog post” , “blog”: “测试内容，测试内容” \}  
\{ “index”: \{ “\_index”: “website”, “\_type”: “blog” \}\}  
\{ “title”: “My second blog post” \}  
\{ “update”: \{ “\_index”: “website”, “\_type”: “blog”, “\_id”: “123”, “\_retry\_on\_conflict” : 3\} \}  
\{ “doc” : \{“title” : “My updated blog post”\} \}  
’

[http_localhost_9200_website_blog_123]: http://localhost:9200/website/blog/123