基于金融知识图谱的问答机器人

import json

from flask import Flask, request
from py2neo import Graph
from pyhanlp import *

app = Flask(__name__)
@app.route("/qa", methods=['POST', 'GET'])
def kg_qa():
    if request.method == 'GET':
        
        ques = request.args.get('question')
        cb = request.args.get('callback')
        print(ques)
        
        qa_graph =  Graph("http://localhost:7474",auth=("neo4j","12345678"),name="neo4j")

        keyword = []
        ansList = []
        # CRF 词法分析器
        CRFLexicalAnalyzer = JClass("com.hankcs.hanlp.model.crf.CRFLexicalAnalyzer")
        analyzer = CRFLexicalAnalyzer()
        han_word_pos = analyzer.analyze(ques).toString()

        print(han_word_pos)

        wordlist = han_word_pos.split(" ")
        for word in wordlist:
            pos = word.split("/")
            if "n" in pos[1]:
                print(pos[0],pos[1])
                if pos[0] not in keyword:
                    keyword.append(pos[0])
        print(keyword)
        query_str = ""
        #枚举组成cypher查询语句
        for key1 in keyword:
            for key2 in keyword:
                if('董事' in key2):
                    query_str = "match (e)-[r2:`董事会成员`]->(s) where  s.name='%s' return e.name"%(key1)
                if('概念' in key2):
                    query_str = "match (s)-[r2:`概念属于`]->(e) where  s.name='%s' return e.name"%(key1)
                if('行业' in key2):
                    query_str = "match (s)-[r2:`行业属于`]->(e) where  s.name='%s' return e.name"%(key1)   

                print(query_str)
                if(len(query_str) > 0):
                    answer = qa_graph.run(query_str).data()
                    print(answer)
                    if answer:
                        for item in answer:
                            print(item)
                            ans_str = item['e.name']
                            print(ans_str)
                            #如果结果里面没有才加入
                            if ans_str not in ansList:
                                ansList.append(ans_str)
        print(ansList)

        re_ans = "您想问的是不是这些问题:\n"

        for i in range(len(ansList)):
            re_ans += "(%s) %s \n"%(i+1,ansList[i])
        print(re_ans)

        result = {
            "question" : ques,
            "answer" : re_ans
        }
        res_str = json.dumps(result)
        cb_str = cb + "(" + res_str + ")"
        print(cb_str)

        return cb_str
    return 'Error Format'

if __name__ == '__main__':
    from werkzeug.serving import run_simple
    run_simple('127.0.0.1', 9001, app)

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/>
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<meta name="description" content=""/>
<meta name="format-detection" content="telephone=no" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="white" />
<title>chatbot</title>
<style type="text/css">
body{ margin: 0; font-size: 18px; background-color: #fff;}
</style>
</head>
<body>
<h1>欢迎大家参加本期知识图谱学习</h1>
<div>
    讲师：蔡丰龙<br>
</div>
<script type="text/javascript" src="robot/robot.js?022107"></script>
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