python elasticsearch環(huán)境搭建詳解

#coding:utf8
from __future__ import unicode_literals
import os
import time
import config
from datetime import datetime
from elasticsearch import Elasticsearch
from elasticsearch.helpers import bulk

class ElasticSearch():
  def __init__(self, index_name,index_type,ip ="127.0.0.1"):
    '''
    :param index_name: 索引名稱
    :param index_type: 索引類型
    '''
    self.index_name =index_name
    self.index_type = index_type
    # 無用戶名密碼狀態(tài)
    #self.es = Elasticsearch([ip])
    #用戶名密碼狀態(tài)
    self.es = Elasticsearch([ip],http_auth=('elastic', 'password'),port=9200)
  def create_index(self,index_name="ftech460",index_type="community"):
    '''
    創(chuàng)建索引,創(chuàng)建索引名稱為ott，類型為ott_type的索引
    :param ex: Elasticsearch對象
    :return:
    '''
    #創(chuàng)建映射
    _index_mappings = {
      "mappings": {
        self.index_type: {
          "properties": {
            "city_code": {
              "type": "string",
              # "index": "not_analyzed"
            },
            "name": {
              "type": "string",
              # "index": "not_analyzed"
            },
            "address": {
              "type": "string",
              # "index": "not_analyzed"
            }
          }
        }

      }
    }
    if self.es.indices.exists(index=self.index_name) is True:
      self.es.indices.delete(index=self.index_name)
    res = self.es.indices.create(index=self.index_name, body=_index_mappings)
    print res

  def build_data_dict(self):
    name_dict = {}
    with open(os.path.join(config.datamining_dir,'data_output','house_community.dat')) as f:
      for line in f:
        line_list = line.decode('utf-8').split('\t')
        community_code = line_list[6]
        name = line_list[7]
        city_code = line_list[0]
        name_dict[community_code] = (name,city_code)

    address_dict = {}
    with open(os.path.join(config.datamining_dir,'data_output','house_community_detail.dat')) as f:
      for line in f:
        line_list = line.decode('utf-8').split('\t')
        community_code = line_list[6]
        address = line_list[10]
        address_dict[community_code] = address

    return name_dict,address_dict

  def bulk_index_data(self,name_dict,address_dict):
    '''
    用bulk將批量數(shù)據(jù)存儲到es
    :return:
    '''
    list_data = []
    for community_code, data in name_dict.items():
      tmp = {}
      tmp['code'] = community_code
      tmp['name'] = data[0]
      tmp['city_code'] = data[1]
      
      if community_code in address_dict:
        tmp['address'] = address_dict[community_code]
      else:
        tmp['address'] = ''

      list_data.append(tmp)
    ACTIONS = []
    for line in list_data:
      action = {
        "_index": self.index_name,
        "_type": self.index_type,
        "_id": line['code'], #_id 小區(qū)code
        "_source": {
          "city_code": line['city_code'],
          "name": line['name'],
          "address": line['address']
          }
      }
      ACTIONS.append(action)
      # 批量處理
    success, _ = bulk(self.es, ACTIONS, index=self.index_name, raise_on_error=True)
    #單條寫入 單條寫入速度很慢
    #self.es.index(index=self.index_name,doc_type="doc_type_test",body = action)

    print('Performed %d actions' % success)

  def delete_index_data(self,id):
    '''
    刪除索引中的一條
    :param id:
    :return:
    '''
    res = self.es.delete(index=self.index_name, doc_type=self.index_type, id=id)
    print res

  def get_data_id(self,id):
    res = self.es.get(index=self.index_name, doc_type=self.index_type,id=id)
    # # 輸出查詢到的結(jié)果
    print res['_source']['city_code'], res['_id'], res['_source']['name'], res['_source']['address']

  def get_data_by_body(self, name, city_code):
    # doc = {'query': {'match_all': {}}}
    doc = {
      "query": {
        "bool":{
          "filter":{
            "term":{
            "city_code": city_code
            }
          },
          "must":{
            "multi_match": {
              "query": name,
              "type":"phrase_prefix",
              "fields": ['name^3', 'address'],
              "slop":1,
              
              }

          }
        }
      }
    }
    _searched = self.es.search(index=self.index_name, doc_type=self.index_type, body=doc)
    data = _searched['hits']['hits']
    return data
     

if __name__=='__main__':
  #數(shù)據(jù)插入es
  obj = ElasticSearch("ftech460","community")
  obj.create_index()
  name_dict, address_dict = obj.build_data_dict()
  obj.bulk_index_data(name_dict,address_dict)

  #從es讀取數(shù)據(jù)
  obj2 = ElasticSearch("ftech460","community")
  obj2.get_data_by_body(u'保利','510100')