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Neo4j Gephi Cypher错误：在没有属性“ name”的节点上进行密码查询时出错

[英]Neo4j Gephi Cypher error: Error with cypher query on nodes without property “name”

原文 2018-06-21 21:52:36 4 1 java/ neo4j/ neo4j-apoc

This question is similar to the one asked in apoc.gephi.add doesn't work : NODE[25512922] has no property with propertyKey='name' yet, I want to add a few things: the issue is with Neo4j 3.2.12 and APOC version 3.2.0.3, if the node does not contain the property "name" (exactly this string), then it raises the error: 这个问题类似于apoc.gephi.add中的问题不起作用：NODE [25512922]尚无具有propertyKey ='name'的属性，我想添加一些内容：问题在于Neo4j 3.2.12和APOC版本3.2.0.3，如果节点不包含属性“名称”（正是此字符串），则会引发错误：

NODE[x] has no property with propertyKey='name' NODE [x]不具有propertyKey ='name'的属性

Even if the node contains properties with the substring 'name' (example, "propertyname"), it throws the same error. 即使节点包含带有子字符串“ name”的属性（例如“ propertyname”），它也会引发相同的错误。 On checking the code in https://raw.githubusercontent.com/neo4j-contrib/neo4j-apoc-procedures/3.2/src/main/java/apoc/gephi/Gephi.java , it looks like the last block of code in the method caption(Node n) should take care of it (the absence of a node property with string "name"). 在检查https://raw.githubusercontent.com/neo4j-contrib/neo4j-apoc-procedures/3.2/src/main/java/apoc/gephi/Gephi.java中的代码时，它看起来像是方法caption（Node n）应该照顾好它（缺少带有字符串“ name”的node属性）。 However, for some reason, it is not able to detect the substring "name" in the property names. 但是，由于某种原因，它无法检测属性名称中的子字符串“名称”。 Can someone shed some light on this issue? 有人可以阐明这个问题吗？

1 个解决方案

I have made some tests on the lastest version, and everything is working. 我已经对最新版本进行了一些测试，并且一切正常。

So I started to check the commit log of the procedure, and I have found this : https://github.com/neo4j-contrib/neo4j-apoc-procedures/commit/8b25b05fa461ae0177db1b0604f628b73f12e08d#diff-d27b3f05da2e50dbcd2c95ca367b0e65 所以我开始检查该过程的提交日志，发现了这个： https : //github.com/neo4j-contrib/neo4j-apoc-procedures/commit/8b25b05fa461ae0177db1b0604f628b73f12e08d#diff-d27b3f05da2e50dbcd2c95ca367b0e65

So it's a bug on the procedure, but it has been correted on the version 3.2.0.4 . 因此，这是该过程中的一个错误，但是在版本3.2.0.4已得到3.2.0.4 。 So you just have to upgrade your apoc version. 因此，您只需要升级您的apoc版本。