elasticsearch python API

yuanwen

Elasticsearch启动

# 进入到elasticsearch的bin目录
cd /.../.../elasticsearch-x.x.x/bin
# 启动elasticsearch
./elasticsearch

可以再开启另外一个终端,输入一下命令,测试是否启动成功

curl http://localhost:9200/

{
  "name" : "F37KLEk",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "ZP1f4uWzRwyRCp0UElz9KA",
  "version" : {
    "number" : "6.3.1",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "eb782d0",
    "build_date" : "2018-06-29T21:59:26.107521Z",
    "build_snapshot" : false,
    "lucene_version" : "7.3.1",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

在Python中操作Elasticsearch
安装Elasticsearch模块

pip install elasticsearch

from elasticsearch import Elasticsearch

# 默认host为localhost,port为9200.但也可以指定host与port
es = Elasticsearch()

# 添加或更新数据,index，doc_type名称可以自定义，id可以根据需求赋值,body为内容
es.index(index="my_index",doc_type="test_type",id=1,body={"name":"python","addr":"深圳"})

# 或者:ignore=409忽略文档已存在异常
es.create(index="my_index",doc_type="test_type",id=1,ignore=409,body={"name":"python","addr":"深圳"})

查询数据

from elasticsearch import Elasticsearch

es = Elasticsearch()

# 获取索引为my_index,文档类型为test_type的所有数据,result为一个字典类型
result = es.search(index="my_index",doc_type="test_type")

# 或者这样写:搜索id=1的文档
result = es.get(index="my_index",doc_type="test_type",id=1)

# 打印所有数据
for item in result["hits"]["hits"]:
    print(item["_source"])

form elasticsearch import Elasticsearch

es = Elasticsearch()

# 删除id=1的数据
result = es.delete(index="my_index",doc_type="test_type",id=1)