无法从spring应用程序连接neo4j服务器
我正在尝试从我的spring应用程序连接本地运行的neo4j实例。 我正在尝试使用链接中提到的twitter应用程序示例 但除了以下例外,它正在失败无法从spring应用程序连接neo4j服务器,neo4j,spring-data-neo4j,Neo4j,Spring Data Neo4j,我正在尝试从我的spring应用程序连接本地运行的neo4j实例。 我正在尝试使用链接中提到的twitter应用程序示例 但除了以下例外,它正在失败 ` Caused by: java.lang.NullPointerException at org.neo4j.rest.graphdb.ExecutingRestRequest.uriWithoutSlash(ExecutingRestRequest.java:78) at org.neo4j.rest.graphdb.Exec
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Caused by: java.lang.NullPointerException
at org.neo4j.rest.graphdb.ExecutingRestRequest.uriWithoutSlash(ExecutingRestRequest.java:78)
at org.neo4j.rest.graphdb.ExecutingRestRequest.<init>(ExecutingRestRequest.java:72)
at org.neo4j.rest.graphdb.ExecutingRestRequest.with(ExecutingRestRequest.java:149)
at org.neo4j.rest.graphdb.entity.RestEntity.<init>(RestEntity.java:52)
at org.neo4j.rest.graphdb.entity.RestNode.<init>(RestNode.java:47)
at org.neo4j.rest.graphdb.RestAPI.getReferenceNode(RestAPI.java:168)
at org.neo4j.rest.graphdb.RestGraphDatabase.getReferenceNode(RestGraphDatabase.java:67)
at org.springframework.data.neo4j.support.typerepresentation.TypeRepresentationStrategyFactory.isAlreadySubRef(TypeRepresentationStrategyFactory.java:71)
at org.springframework.data.neo4j.support.typerepresentation.TypeRepresentationStrategyFactory.chooseStrategy(TypeRepresentationStrategyFactory.java:56)
at org.springframework.data.neo4j.support.typerepresentation.TypeRepresentationStrategyFactory.<init>(TypeRepresentationStrategyFactory.java:40)
at org.springframework.data.neo4j.config.Neo4jConfiguration.typeRepresentationStrategyFactory(Neo4jConfiguration.java:151)
at org.springframework.data.neo4j.config.Neo4jConfiguration$$EnhancerByCGLIB$$c7a98d47.CGLIB$typeRepresentationStrategyFactory$9(<generated>)
at org.springframework.data.neo4j.config.Neo4jConfiguration$$EnhancerByCGLIB$$c7a98d47$$FastClassByCGLIB$$d6c07f8a.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:285)
at org.springframework.data.neo4j.config.Neo4jConfiguration$$EnhancerByCGLIB$$c7a98d47.typeRepresentationStrategyFactory(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:160)
... 82 more
`
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原因:java.lang.NullPointerException
位于org.neo4j.rest.graphdb.ExecutingRestRequest.uriWithoutSlash(ExecutingRestRequest.java:78)
位于org.neo4j.rest.graphdb.ExecutingRestRequest.(ExecutingRestRequest.java:72)
位于org.neo4j.rest.graphdb.ExecutingRestRequest.with(ExecutingRestRequest.java:149)
位于org.neo4j.rest.graphdb.entity.RestEntity。(RestEntity.java:52)
位于org.neo4j.rest.graphdb.entity.RestNode。(RestNode.java:47)
位于org.neo4j.rest.graphdb.RestAPI.getReferenceNode(RestAPI.java:168)
位于org.neo4j.rest.graphdb.RestGraphDatabase.getReferenceNode(RestGraphDatabase.java:67)
位于org.springframework.data.neo4j.support.typerepresentation.TypeRepresentationStrategyFactory.isAlreadySubRef(TypeRepresentationStrategyFactory.java:71)
位于org.springframework.data.neo4j.support.typerepresentation.TypeRepresentationStrategyFactory.chooseStrategy(TypeRepresentationStrategyFactory.java:56)
位于org.springframework.data.neo4j.support.typerepresentation.TypeRepresentationStrategyFactory。(TypeRepresentationStrategyFactory.java:40)
位于org.springframework.data.neo4j.config.Neo4jConfiguration.typeRepresentationStrategyFactory(Neo4jConfiguration.java:151)
位于org.springframework.data.neo4j.config.Neo4jConfiguration$$enhancerbyglib$$c7a98d47.CGLIB$typeRepresentationStrategyFactory$9()
在org.springframework.data.neo4j.config.Neo4jConfiguration$$EnhancerByGlib$$c7a98d47$$FastClassByCGLIB$$d6c07f8a.invoke()上
net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
位于org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:285)
位于org.springframework.data.neo4j.config.Neo4jConfiguration$$enhancerbyglib$$c7a98d47.typeRepresentationStrategyFactory()
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(未知源)
在sun.reflect.DelegatingMethodAccessorImpl.invoke处(未知源)
位于java.lang.reflect.Method.invoke(未知源)
位于org.springframework.beans.factory.support.SimpleInstallationStrategy.instantiate(SimpleInstallationStrategy.java:160)
... 82多
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聚甲醛配置
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.test.spring.neo4j</groupId>
<artifactId>TestSpringWithNeo4j</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-neo4j</artifactId>
<version>2.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.social</groupId>
<artifactId>spring-social-twitter</artifactId>
<version>1.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j</artifactId>
<version>1.8.M06</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.1.0.RELEASE</version>
</dependency>
<!-- <dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId>
<version>3.0</version> </dependency> -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-neo4j-rest</artifactId>
<version>2.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>4.1.0.Final</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>spring</id>
<url>http://repo.springsource.org/libs-milestone</url>
</repository>
<repository>
<id>neo4j</id>
<url>http://m2.neo4j.org/content/repositories/releases/org/neo4j/neo4j-cypher-dsl/1.9.M04/</url>
</repository>
</repositories>
</project>
4.0.0
com.test.spring.neo4j
用NeO4J测试弹簧
0.0.1-快照
战争
org.springframework.data
spring-data-neo4j
2.2.0.1发布
org.springframework.social
春季社交推特
1.0.5.1发布
org.neo4j
neo4j
1.8.M06
org.springframework
弹簧试验
3.1.0.1发布
org.springframework.data
spring-data-neo4j-rest
2.0.0.1版本
cglib
cglib
2.2
org.hibernate
休眠验证器
4.1.0.1最终版本
春天
http://repo.springsource.org/libs-milestone
neo4j
http://m2.neo4j.org/content/repositories/releases/org/neo4j/neo4j-cypher-dsl/1.9.M04/
TwitterGraph-server.xml
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/data/neo4j
http://www.springframework.org/schema/data/neo4j/spring-neo4j-2.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<context:component-scan base-package="com.test.spring.services"/>
<context:annotation-config/>
<neo4j:repositories base-package="com.test.spring.repositories"/>
<tx:annotation-driven mode="proxy"/>
<bean id="graphDatabaseService"
class="org.springframework.data.neo4j.rest.SpringRestGraphDatabase">
<constructor-arg value="http://localhost:7474/db/data" />
</bean>
<neo4j:config graphDatabaseService="graphDatabaseService"/>
</beans>
请帮助我进行配置
谢谢..修改实例URL末尾的斜杠:
<bean id="graphDatabaseService"
class="org.springframework.data.neo4j.rest.SpringRestGraphDatabase">
<constructor-arg value="http://localhost:7474/db/data/" /> <!-- note slash at the end -->
</bean>
然后,您应该使用Neo4j 1.8作为服务器,因为您的SDN依赖关系也适用于1.8 或者等待针对Neo4j 2.0的SDN 3.0.M2
SDN 3.0 M1仍处于2.0.0-M06您的服务器是什么版本?