通过在Windows上从Neo4j 2.3.1更新到Neo4j 3.0.3，我的证书出现问题。根据2.3.1和3.0.3文档：
Neo4j还支持链式SSL证书。这需要将PEM格式的所有证书合并到一个文件中，并且私钥需要采用DER格式。
我和this question完全一样，并且在2.3.1中完成了它。当我尝试在3.0.3中使用它们时，我没有运气并且在启动时出现错误。
它们被称为neo4j.cert和neo4j.key，并根据需要位于certificates文件夹中。
我发现类似的问题已经报告here但是我在Windows服务器上，我实际上需要非自签名的证书。
我得到的错误是：
2016-08-17 01:11:19.095+0000 INFO Starting...
2016-08-17 01:11:19.548+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@6a32213c' was successfully initialized, but failed to start. Please see attached cause exception. Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@6a32213c' was successfully initialized, but failed to start. Please see attached cause exception.
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@6a32213c' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:68)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:217)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:87)
at org.neo4j.server.BlockingBootstrapper.start(BlockingBootstrapper.java:43)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:66)
at org.neo4j.server.CommunityEntryPoint.start(CommunityEntryPoint.java:38)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase@6a32213c' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:444)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:189)
... 4 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.CommunityFacadeFactory, Y:\neo4j\data\databases\ram.db
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:144)
at org.neo4j.kernel.impl.factory.CommunityFacadeFactory.newFacade(CommunityFacadeFactory.java:40)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:108)
at org.neo4j.server.CommunityNeoServer.lambda$static$31(CommunityNeoServer.java:55)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:89)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:434)
... 6 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.extension.KernelExtensions@1040a217' failed to initialize. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:416)
at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:62)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:98)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:140)
... 11 more
Caused by: java.lang.RuntimeException: Failed to initilize SSL encryption support, which is required to start this connector. Error was: failed to initialize the server-side SSL context
at org.neo4j.bolt.BoltKernelExtension.createSslContext(BoltKernelExtension.java:205)
at org.neo4j.bolt.BoltKernelExtension.lambda$newInstance$14(BoltKernelExtension.java:166)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:390)
at java.util.stream.DistinctOps$1$2.end(DistinctOps.java:168)
at java.util.stream.Sink$ChainedReference.end(Sink.java:258)
at java.util.stream.Sink$ChainedReference.end(Sink.java:258)
at java.util.stream.Sink$ChainedReference.end(Sink.java:258)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at org.neo4j.bolt.BoltKernelExtension.newInstance(BoltKernelExtension.java:178)
at org.neo4j.bolt.BoltKernelExtension.newInstance(BoltKernelExtension.java:83)
at org.neo4j.kernel.extension.KernelExtensions.init(KernelExtensions.java:69)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:406)
... 14 more
Caused by: javax.net.ssl.SSLException: failed to initialize the server-side SSL context
at io.netty.handler.ssl.JdkSslServerContext.<init>(JdkSslServerContext.java:222)
at io.netty.handler.ssl.JdkSslServerContext.<init>(JdkSslServerContext.java:161)
at io.netty.handler.ssl.SslContext.newServerContextInternal(SslContext.java:399)
at io.netty.handler.ssl.SslContextBuilder.build(SslContextBuilder.java:207)
at org.neo4j.bolt.BoltKernelExtension.createSslContext(BoltKernelExtension.java:200)
... 33 more
Caused by: java.security.KeyException: found no private key: Y:\neo4j\certificates\neo4j.key
at io.netty.handler.ssl.PemReader.readPrivateKey(PemReader.java:99)
at io.netty.handler.ssl.SslContext.buildKeyStore(SslContext.java:890)
at io.netty.handler.ssl.JdkSslContext.buildKeyManagerFactory(JdkSslContext.java:313)
at io.netty.handler.ssl.JdkSslContext.buildKeyManagerFactory(JdkSslContext.java:291)
at io.netty.handler.ssl.JdkSslServerContext.<init>(JdkSslServerContext.java:205)
... 37 more
答案 0 :(得分：1)
好的，有两个原因导致出现此错误。
即使文档需要DER格式的密钥，看起来Neo4j 3.0.3更喜欢PEM。
以下是使用的方法：
openssl genrsa -out neo4j.key 4096 openssl req -new -key neo4j.key -out server.csr neo4j.cert 现在您只需将文件添加到certificates文件夹并启动服务器。