Question

我正在尝试设置一个用户可以在节点编号中输入的网页，并让我的外部python代码查询neo4j，然后将该查询的结果发回网页。

我正在尝试使用AJAX的相关html代码：

<h4>Enter Node Name for Search</h4>                     
<input id="numb" type="text">
<button type="button" onclick="myFunction()">Submit</button>
<p id="demo"></p>
<script>
function myFunction() {
    var x, text;
    x = document.getElementById("numb").value;
    if (isNaN(x)) {                             
        text = "Input not valid";
    } else {
        $.ajax({
            type: "POST",
            url: "python/neo.py",
            dataType:"html",
            data: {param: x},                               
            success: function(data) {
                document.getElementById("demo").innerHTML = $(data).text().trim();},
            error: doError,
            });
        }
        document.getElementById("demo").innerHTML = text;
    }
</script>

这是python代码：

#!/usr/bin/env python
#-*- coding: utf-8 -*-

from __future__ import division
import sys
from py2neo import neo4j,node, rel, cypher

url = "http://localhost:7474/db/data/"

def node_info(a):

try:
    graph_db = neo4j.GraphDatabaseService(url)
    query = neo4j.CypherQuery(graph_db, 
    """CYPHER 2.0
        MATCH (n)-[r*..2]-(m)
        WHERE id(n)={z}
        RETURN labels(n), count(m) AS connected_count, collect (id(m)) as connected_nodes
        """) 
    result = query.execute(z=a)
    for r in result:                       
        print r.values

except Exception as e:
    print e

if __name__ == '__main__':

    startnode=int(sys.argv[1])
    node_info(startnode)

我希望r.values打印到success:块中的网页上的python代码，除非我误解了成功块的工作原理。

使用py2neo，neo4j和AJAX时遇到困难

0 个答案: