Question

我下载并安装了neo4j-php-client和neo4j 2.3.2。实际上一切正常，但我只是想知道为什么这个php客户端没有错误处理程序？例如，如果cypher查询中存在错误，则没有错误抛出很容易捕获它。我通过网络搜索，但我找不到解决方案。

有人知道如何打开错误处理程序吗？

提前致谢。

Answer 1

我是neo4j-php-client的维护者。

当您向Neo4j发送查询时，它实际上是通过Guzzle发送的。

当然，有一个用于处理异常的try / catch块，它位于：

https://github.com/graphaware/neo4j-php-client/blob/master/src/HttpClient/GuzzleHttpClient.php#L76

如果您的密码查询中存在错误，则会抛出异常，例外类型为Neo4jException（https://github.com/graphaware/neo4j-php-client/blob/master/src/Exception/Neo4jException.php）

这是一个带有cypher语法错误的简单代码，您可以看到抛出异常：

<?php

require_once __DIR__ .'/vendor/autoload.php';

use Neoxygen\NeoClient\ClientBuilder;

$client = ClientBuilder::create()
    ->addConnection('default', 'http', 'localhost', 7474)
    ->setAutoFormatResponse(true)
    ->build();

$query = 'MATCH (n) RETURN x';

$result = $client->sendCypherQuery($query)->getResult();

-

ikwattro@graphaware ~/d/g/p/neo4j-php-client> php test.php
PHP Fatal error:  Uncaught Neoxygen\NeoClient\Exception\Neo4jException: Neo4j Exception with code "Neo.ClientError.Statement.InvalidSyntax" and message "Variable `x` not defined (line 1, column 18 (offset: 17))
"MATCH (n) RETURN x"
                  ^" in /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/AbstractExtension.php:117
Stack trace:
#0 /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/AbstractExtension.php(104): Neoxygen\NeoClient\Extension\AbstractExtension->checkResponseErrors(Array)
#1 /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/NeoClientCoreExtension.php(98): Neoxygen\NeoClient\Extension\AbstractExtension->handleHttpResponse(Object(Neoxygen\NeoClient\Request\Response))
#2 [internal function]: Neoxygen\NeoClient\Extension\NeoClientCoreExtension->sendCypherQuery('MATCH (n) RETUR...')
#3 /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/ExtensionManager.php(53): call_user_func_array(Array, Array)
#4 /Users/ikwattro/dev/graphaware/php/neo4j-php-cli in /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/AbstractExtension.php on line 117

Fatal error: Uncaught Neoxygen\NeoClient\Exception\Neo4jException: Neo4j Exception with code "Neo.ClientError.Statement.InvalidSyntax" and message "Variable `x` not defined (line 1, column 18 (offset: 17))
"MATCH (n) RETURN x"
                  ^" in /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/AbstractExtension.php:117
Stack trace:
#0 /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/AbstractExtension.php(104): Neoxygen\NeoClient\Extension\AbstractExtension->checkResponseErrors(Array)
#1 /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/NeoClientCoreExtension.php(98): Neoxygen\NeoClient\Extension\AbstractExtension->handleHttpResponse(Object(Neoxygen\NeoClient\Request\Response))
#2 [internal function]: Neoxygen\NeoClient\Extension\NeoClientCoreExtension->sendCypherQuery('MATCH (n) RETUR...')
#3 /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/ExtensionManager.php(53): call_user_func_array(Array, Array)
#4 /Users/ikwattro/dev/graphaware/php/neo4j-php-cli in /Users/ikwattro/dev/graphaware/php/neo4j-php-client/src/Extension/AbstractExtension.php on line 117

Answer 2

感谢您的回答。这个问题似乎在我的最后，我经过几次测试后想出来 - 错误处理由php框架覆盖。

neo4j-php-client中的错误处理程序

2 个答案: