Python爬虫爬取王者荣耀英雄信息并保存到图数据库的操作方法,


目录
  • 爬取信息说明
  • 创建英雄类型节点
  • 创建英雄信息节点
    • 获取英雄信息
    • 保存英雄信息
  • 完整代码
    • 实现效果

      爬取信息说明

      • 英雄名称
      • 英雄类型
      • 英雄包含的所有皮肤名称

      创建英雄类型节点

      王者荣耀官方给出的英雄类型是以下几种:

      直接准备好英雄类型词典

      hero_type_dict = [
          '战士', '法师', '坦克', '刺客', '射手', '辅助'
      ]

      添加到图数据库中

      def create_hero_type_node():
          for hero_type in hero_type_dict:
              cypher = "MERGE (n:HeroType{label: '" + hero_type + "'})"
              graph.run(cypher).data()
          print('创建英雄类型节点成功')

      创建英雄信息节点

      获取英雄信息

      def get_hero_info_list():
          # 英雄的全部信息的url
          hero_info = 'https://pvp.qq.com/web201605/js/herolist.json'
          # 获取英雄的全部信息
          response = requests.get(hero_info)
          # 转为字典格式
          hero_info_dict = json.loads(response.text)
          return hero_info_dict

      打印的内容如下:

      这里需要注意的是,部分英雄包含两个英雄类别。

      保存英雄信息

      def create_hero_node():
          hero_info_dict = get_hero_info_list()
          # 1战士 2法师 3坦克 4刺客 5射手 6辅助
          for hero in hero_info_dict:
              # print(hero)
              # print(str(hero.get('cname')) + '===' + str(hero_type[hero.get('hero_type')-1]) + '===' + str(hero.get('skin_name')))
              hero_type_list = [str(hero_type_dict[hero.get('hero_type') - 1])]
              if '|' in str(hero.get('skin_name')):
                  skin_name_list = hero.get('skin_name').split('|')
              else:
                  skin_name_list = [hero.get('skin_name')]
              if 'hero_type2' in str(hero):
                  hero_type_list.append(str(hero_type_dict[hero.get('hero_type2') - 1]))
              # 创建英雄信息节点
              hero_cypher = "MERGE (n:Hero{label: '" + str(hero.get('cname')) + "'})"
              graph.run(hero_cypher).data()
              # 创建英雄->类型关系
              for hero_type in hero_type_list:
                  cypher_rel = "MATCH(h:Hero{label:'" + str(
                      hero.get('cname')) + "'}),(t:HeroType{label:'" + hero_type + "'}) MERGE (h)-[r:类型]->(t) RETURN h,r,t"
                  graph.run(cypher_rel).data()
              for skin_name in skin_name_list:
                  # 创建英雄皮肤节点
                  cypher = "MERGE (n:Skin{label:'" + skin_name + "'})"
                  graph.run(cypher).data()
                  # 创建英雄->皮肤关系
                  cypher_rel = "MATCH(h:Hero{label:'" + str(
                      hero.get('cname')) + "'}),(s:Skin{label:'" + skin_name + "'}) MERGE (h)-[r:皮肤]->(s) RETURN h,r,s"
                  graph.run(cypher_rel).data()
              print(str(hero.get('cname')) + '===' + str(hero_type_list) + '===' + str(skin_name_list))

      完整代码

      import json
      import requests
      from bs4 import BeautifulSoup
      from py2neo import Graph, RelationshipMatcher, NodeMatcher
      from dict import hero_type_dict
      url = "bolt://localhost:7687"
      username = "neo4j"
      password = 'Suns3535'
      graph = Graph(url, auth=(username, password), name="wzry")
      node_matcher = NodeMatcher(graph=graph)
      relationship_matcher = RelationshipMatcher(graph=graph)
      def get_hero_info_list():
          # 英雄的全部信息的url
          hero_info = 'https://pvp.qq.com/web201605/js/herolist.json'
          # 获取英雄的全部信息
          response = requests.get(hero_info)
          # 转为字典格式
          hero_info_dict = json.loads(response.text)
          return hero_info_dict
      def create_hero_type_node():
          for hero_type in hero_type_dict:
              cypher = "MERGE (n:HeroType{label: '" + hero_type + "'})"
              graph.run(cypher).data()
          print('创建英雄类型节点成功')
      def create_hero_node():
          hero_info_dict = get_hero_info_list()
          # 1战士 2法师 3坦克 4刺客 5射手 6辅助
          for hero in hero_info_dict:
              # print(hero)
              # print(str(hero.get('cname')) + '===' + str(hero_type[hero.get('hero_type')-1]) + '===' + str(hero.get('skin_name')))
              hero_type_list = [str(hero_type_dict[hero.get('hero_type') - 1])]
              if '|' in str(hero.get('skin_name')):
                  skin_name_list = hero.get('skin_name').split('|')
              else:
                  skin_name_list = [hero.get('skin_name')]
              if 'hero_type2' in str(hero):
                  hero_type_list.append(str(hero_type_dict[hero.get('hero_type2') - 1]))
              # 创建英雄信息节点
              hero_cypher = "MERGE (n:Hero{label: '" + str(hero.get('cname')) + "'})"
              graph.run(hero_cypher).data()
              # 创建英雄->类型关系
              for hero_type in hero_type_list:
                  cypher_rel = "MATCH(h:Hero{label:'" + str(
                      hero.get('cname')) + "'}),(t:HeroType{label:'" + hero_type + "'}) MERGE (h)-[r:类型]->(t) RETURN h,r,t"
                  graph.run(cypher_rel).data()
              for skin_name in skin_name_list:
                  # 创建英雄皮肤节点
                  cypher = "MERGE (n:Skin{label:'" + skin_name + "'})"
                  graph.run(cypher).data()
                  # 创建英雄->皮肤关系
                  cypher_rel = "MATCH(h:Hero{label:'" + str(
                      hero.get('cname')) + "'}),(s:Skin{label:'" + skin_name + "'}) MERGE (h)-[r:皮肤]->(s) RETURN h,r,s"
                  graph.run(cypher_rel).data()
              print(str(hero.get('cname')) + '===' + str(hero_type_list) + '===' + str(skin_name_list))
      # 创建英雄类型节点
      create_hero_type_node()
      # 创建英雄信息
      create_hero_node()

      实现效果

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