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我在 Lambda 函数中访问我的 Neo4j 数据库时遇到问题。我想建立一个 Alexa 技能，并且在那个 Alexa 技能中应该可以访问像 Neo4j 这样的图形数据库。我认为将数据库放入云端（使用 GrapheneDB）可以解决这个问题，但现在看来认证有问题。

import org.neo4j.driver.v1.*;
import static org.neo4j.driver.v1.Values.parameters;

public class DB {

public static void main(String...args) {

    Config noSSL = Config.build().withEncryptionLevel(Config.EncryptionLevel.NONE).toConfig();

    Driver driver = GraphDatabase.driver("bolt://xyz.dbs.graphenedb.com:24786", AuthTokens.basic("db","pw"), noSSL); 
    try (org.neo4j.driver.v1.Session session = driver.session()) {
    ...
    }

此代码在我的 IntelliJ IDE 中有效，但是当我尝试将此代码放入示例 Lambda 函数时，会出现以下错误：

"errorMessage": "Unable to process request: General SSLEngine problem",
  "errorType": "org.neo4j.driver.v1.exceptions.ClientException",
  "stackTrace": [
    "org.neo4j.driver.internal.connector.socket.SocketClient.start(SocketClient.java:85)",
    "org.neo4j.driver.internal.connector.socket.SocketConnection.<init>(SocketConnection.java:63)",
    "org.neo4j.driver.internal.connector.socket.SocketConnector.connect(SocketConnector.java:52)",
    "org.neo4j.driver.internal.pool.InternalConnectionPool$1.allocate(InternalConnectionPool.java:191)",
    "org.neo4j.driver.internal.pool.InternalConnectionPool$1.allocate(InternalConnectionPool.java:180)",
    "org.neo4j.driver.internal.pool.ThreadCachingPool.allocate(ThreadCachingPool.java:212)",
    "org.neo4j.driver.internal.pool.ThreadCachingPool.acquireFromGlobal(ThreadCachingPool.java:164)",
    "org.neo4j.driver.internal.pool.ThreadCachingPool.acquire(ThreadCachingPool.java:118)",
    "org.neo4j.driver.internal.pool.InternalConnectionPool.acquire(InternalConnectionPool.java:109)",
    "org.neo4j.driver.internal.InternalDriver.session(InternalDriver.java:53)",
    "spacegeek.SpaceGeekSpeechlet.startGraphDB(SpaceGeekSpeechlet.java:122)",
    "spacegeek.SpaceGeekSpeechlet.onSessionStarted(SpaceGeekSpeechlet.java:87)",
    "com.amazon.speech.speechlet.SpeechletToSpeechletV2Adapter.onSessionStarted(SpeechletToSpeechletV2Adapter.java:33)",
    "com.amazon.speech.speechlet.SpeechletRequestDispatcher.dispatchSpeechletCall(SpeechletRequestDispatcher.java:102)",
    "com.amazon.speech.speechlet.SpeechletRequestHandler.internalHandleSpeechletCall(SpeechletRequestHandler.java:152)",
    "com.amazon.speech.speechlet.SpeechletRequestHandler.handleSpeechletCall(SpeechletRequestHandler.java:115)",
    "com.amazon.speech.speechlet.lambda.SpeechletRequestStreamHandler.handleRequest(SpeechletRequestStreamHandler.java:89)"
  ],"errorMessage": "Unable to process request: General SSLEngine problem",
  "errorType": "org.neo4j.driver.v1.exceptions.ClientException",
  "stackTrace": [
    "org.neo4j.driver.internal.connector.socket.SocketClient.start(SocketClient.java:85)",
    "org.neo4j.driver.internal.connector.socket.SocketConnection.<init>(SocketConnection.java:63)",
    "org.neo4j.driver.internal.connector.socket.SocketConnector.connect(SocketConnector.java:52)",
    "org.neo4j.driver.internal.pool.InternalConnectionPool$1.allocate(InternalConnectionPool.java:191)",
    "org.neo4j.driver.internal.pool.InternalConnectionPool$1.allocate(InternalConnectionPool.java:180)",
    "org.neo4j.driver.internal.pool.ThreadCachingPool.allocate(ThreadCachingPool.java:212)",
    "org.neo4j.driver.internal.pool.ThreadCachingPool.acquireFromGlobal(ThreadCachingPool.java:164)",
    "org.neo4j.driver.internal.pool.ThreadCachingPool.acquire(ThreadCachingPool.java:118)",
    "org.neo4j.driver.internal.pool.InternalConnectionPool.acquire(InternalConnectionPool.java:109)",
    "org.neo4j.driver.internal.InternalDriver.session(InternalDriver.java:53)",
    "spacegeek.SpaceGeekSpeechlet.startGraphDB(SpaceGeekSpeechlet.java:122)",
    "spacegeek.SpaceGeekSpeechlet.onSessionStarted(SpaceGeekSpeechlet.java:87)",
    "com.amazon.speech.speechlet.SpeechletToSpeechletV2Adapter.onSessionStarted(SpeechletToSpeechletV2Adapter.java:33)",
    "com.amazon.speech.speechlet.SpeechletRequestDispatcher.dispatchSpeechletCall(SpeechletRequestDispatcher.java:102)",
    "com.amazon.speech.speechlet.SpeechletRequestHandler.internalHandleSpeechletCall(SpeechletRequestHandler.java:152)",
    "com.amazon.speech.speechlet.SpeechletRequestHandler.handleSpeechletCall(SpeechletRequestHandler.java:115)",
    "com.amazon.speech.speechlet.lambda.SpeechletRequestStreamHandler.handleRequest(SpeechletRequestStreamHandler.java:89)"
  ],

有人可以帮忙吗？还是有更好的方法来访问 Neo4j 数据库？

4

1 回答 1

2

解决了这个问题。只需更改加密设置：

 Config SSL = Config.build().withEncryption().toConfig();

也许它可以帮助某人。

于 2017-05-04T11:13:42.300 回答