Spring Data Neo4J 事务提交问题

Question

我在 AWS Linux 实例上使用 Neo4J (3.3.4)、SpringData Neo4J (4.2.11.RELEASE)。我在我的服务方法上使用@Transactional。当我坚持实体时，它会给我以下异常

有趣的部分是它在 windows（具有相同版本的 neo4j）上运行良好，而在 AWS 实例上却不是......

有人帮我看看为什么会这样吗？

org.springframework.dao.InvalidDataAccessApiUsageException: http://<ip_address>:7474/db/data/transaction/2/commit; nested exception is org.neo4j.ogm.exception.TransactionException: http://<ip_address>:7474/db/data/transaction/2/commit
    at org.springframework.data.neo4j.transaction.SessionFactoryUtils.convertOgmAccessException(SessionFactoryUtils.java:139)
    at org.springframework.data.neo4j.transaction.Neo4jTransactionManager.doCommit(Neo4jTransactionManager.java:265)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:761)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:730)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:504)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:292)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
    at com.sun.proxy.$Proxy610.save(Unknown Source)
    at com.API..saveProduct(API.java:287)
    at com.API$$FastClassBySpringCGLIB$$1585d098.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
    at org.springframework.validation.beanvalidation.MethodValidationInterceptor.invoke(MethodValidationInterceptor.java:139)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
    at com.API$$EnhancerBySpringCGLIB$$fff3415c.save(<generated>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:784)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)                           
         Caused by: org.neo4j.ogm.exception.TransactionException: http://<ip_address>:7474/db/data/transaction/2/commit
    at org.neo4j.ogm.drivers.http.transaction.HttpTransaction.commit(HttpTransaction.java:75)
    at org.springframework.data.neo4j.transaction.Neo4jTransactionManager.doCommit(Neo4jTransactionManager.java:262)
    ... 62 common frames omitted

Answer 1

如果您的数据源已经可以访问

那么您的问题似乎来自会话超时。 尝试增加会话超时。从您的 tomcat 管理控制台。

来自 neo4j.conf 在 linux 上 cd /etc/neo4j/

sudo nano neo4j.conf

尝试增加 dbms.transaction.timeout=(360000 或其他)

如果您的数据源根本无法访问

然后执行以下操作

您必须将数据源设置为可访问 从你的IP地址：7474

例如在 wildfly 上，这是在 server\wildfly-10.1.0.Final\standalone\configuration\standalone.xml 中完成的

OR 来自 Wildfly 管理员控制台(http://localhost:8080)。

这里我展示了它是如何完成的

在服务器上\wildfly-10.1.0.Final\standalone\configuration\standalone.xml

<datasource jndi-name="java:jboss/datasources/Neo4jDS" pool-name="Neo4jDS" enabled="true" use-java-context="true">
                    <connection-url>jdbc:neo4j://YourIpAdress:7474/</connection-url>
                    <driver>neo4j-jdbc-YOURVERSIONHERE-jar-with-dependencies.jar</driver>
                    <transaction-isolation>TRANSACTION_SERIALIZABLE</transaction-isolation>
                    <security>
                        <user-name>youruser</user-name>
                        <password>yourpasswor</password>
                    </security>
                </datasource>

如果已经完成，你必须检查你的网络是否在 linux 上

1- cd /etc/network

然后申请

2- ifconfig -a

你应该在 inet 上有一个匹配你的 IP 地址。

inet xxx.xxx.xxx.xxx 如果你有其他地址 ip 而不是你的 xxx.xxx.xxx.xxx 那么

您应该更新您的代码 java 以链接这个新的 xxx.xxx.xxx.xxx 地址 ip。 或者像我上面在standalone.xml上显示的那样重新更新。

如果 inet 上的地址与您的地址 ip 匹配 然后检查

on linux 
cd /etc/neo4j/
sudo nano neo4j.conf

并检查文件，你必须看看正确的配置是否正确。

#*****************************************************************
# Network connector configuration
#*****************************************************************

# With default configuration Neo4j only accepts local connections.
# To accept non-local connections, uncomment this line:
dbms.connectors.default_listen_address=0.0.0.0

# You can also choose a specific network interface, and configure a non-default
# port for each connector, by setting their individual listen_address.

# The address at which this server can be reached by its clients. This may be the server's IP address or DNS name, or
# it may be the address of a reverse proxy which sits in front of the server. This setting may be overridden for
# individual connectors below.
#dbms.connectors.default_advertised_address=localhost

# You can also choose a specific advertised hostname or IP address, and
# configure an advertised port for each connector, by setting their
# individual advertised_address.

# Bolt connector
dbms.connector.bolt.enabled=true

#dbms.connector.bolt.tls_level=OPTIONAL
#dbms.connector.bolt.listen_address=0.0.0.0:7687

# HTTP Connector. There must be exactly one HTTP connector.
dbms.connector.http.enabled=true
#dbms.connector.http.listen_address=:7474

# HTTPS Connector. There can be zero or one HTTPS connectors.
dbms.connector.https.enabled=true
#dbms.connector.https.listen_address=:7473