Question

我需要帮助将neo4j数据库连接到spring boot。我一整天都在谷歌上搜索，但却无法搞清楚。我可以创建一个spring boot应用程序，创建一个调用Service的REST控制器，然后创建用于SQl的Spring数据JPA存储库，但不能为图形数据库执行此操作，任何人都可以帮我配置Graph数据库以进行Spring启动。我是Neo4j的新手，已被分配任务。

谢谢你。我添加了任何教程告诉我的内容：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.3.RELEASE</version>
</parent>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-rest</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-neo4j</artifactId>
        <version>4.2.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-neo4j-rest -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-neo4j-rest</artifactId>
        <version>3.4.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.neo4j</groupId>
        <artifactId>neo4j-configuration</artifactId>
        <version>3.2.0-alpha08</version>
    </dependency>


</dependencies>
<properties>
    <start-class>com.sumit.demo.AppBootConfig</start-class>
    <java.version>1.8</java.version>
</properties>
<build>
    <finalName>people</finalName>
</build>

我的主要是：

@SpringBootApplication(exclude = { Neo4jDataAutoConfiguration.class })
@EnableAutoConfiguration(exclude = { DataSourceAutoConfiguration.class })
public class AppBootConfig extends SpringBootServletInitializer {
public static void main(String[] args) {
    SpringApplication.run(AppBootConfig.class, args);
     }
}

我尝试配置但得到了这个：

017-04-25 01:10:03.316  WARN 5772 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.sumit.demo.AppBootConfig]; nested exception is java.io.FileNotFoundException: class path resource [org/springframework/data/neo4j/config/Neo4jConfiguration.class] cannot be opened because it does not exist

2017-04-25 01：10：03.323 ERROR 5772 --- [main] o.s.b.f.s.DefaultListableBeanFactory：在bean上销毁名为＆＃39; org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory＆＃39;抛出异常

java.lang.IllegalStateException：ApplicationEventMulticaster未初始化 - 调用＆＃39;刷新＆＃39;在通过上下文组播事件之前：org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2f9f7dcf：启动日期[Tue Apr 25 01:10:02 IST 2017];上下文层次结构的根在org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster（AbstractApplicationContext.java:404）[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction（ApplicationListenerDetector.java:97）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.beans.factory.support.DisposableBeanAdapter.destroy（DisposableBeanAdapter.java:253）〜[spring-beans-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean（DefaultSingletonBeanRegistry.java:578）[spring-beans-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton（DefaultSingletonBeanRegistry.java:554）[spring-beans-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton（DefaultListableBeanFactory.java:959）[spring-beans-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons（DefaultSingletonBeanRegistry.java:523）[spring-beans-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons（DefaultListableBeanFactory.java:966）[spring-beans-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.support.AbstractApplicationContext.destroyBeans（AbstractApplicationContext.java:1033）[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:555）[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh（EmbeddedWebApplicationContext.java:122）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.refresh（SpringApplication.java:761）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.refreshContext（SpringApplication.java:371）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.run（SpringApplication.java:315）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.run（SpringApplication.java:1186）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.run（SpringApplication.java:1175）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在com.sumit.demo.AppBootConfig.main（AppBootConfig.java:15）[classes /：na]

2017-04-25 01：10：03.334 ERROR 5772 --- [main] o.s.boot.SpringApplication：应用程序启动失败

org.springframework.beans.factory.BeanDefinitionStoreException：无法处理配置类[com.sumit.demo.AppBootConfig]的导入候选项;嵌套异常是java.io.FileNotFoundException：类路径资源[org / springframework / data / neo4j / config / Neo4jConfiguration.class]无法打开，因为它不存在在org.springframework.context.annotation.ConfigurationClassParser.processImports（ConfigurationClassParser.java:541）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.processDeferredImportSelectors（ConfigurationClassParser.java:475）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.parse（ConfigurationClassParser.java:184）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions（ConfigurationClassPostProcessor.java:308）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry（ConfigurationClassPostProcessor.java:228）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors（PostProcessorRegistrationDelegate.java:270）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors（PostProcessorRegistrationDelegate.java:93）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors（AbstractApplicationContext.java:686）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:524）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh（EmbeddedWebApplicationContext.java:122）〜[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.refresh（SpringApplication.java:761）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.refreshContext（SpringApplication.java:371）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.run（SpringApplication.java:315）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.run（SpringApplication.java:1186）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.boot.SpringApplication.run（SpringApplication.java:1175）[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在com.sumit.demo.AppBootConfig.main（AppBootConfig.java:15）[classes /：na] 引起：java.io.FileNotFoundException：类路径资源[org / springframework / data / neo4j / config / Neo4jConfiguration.class]无法打开，因为它不存在在org.springframework.core.io.ClassPathResource.getInputStream（ClassPathResource.java:172）〜[spring-core-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.core.type.classreading.SimpleMetadataReader。（SimpleMetadataReader.java:50）〜[spring-core-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader（SimpleMetadataReaderFactory.java:98）〜[spring-core-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader（ConcurrentReferenceCachingMetadataReaderFactory.java:89）〜[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader（ConcurrentReferenceCachingMetadataReaderFactory.java:76）〜[spring-boot-1.4.3.RELEASE.jar：1.4.3.RELEASE] 在org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader（SimpleMetadataReaderFactory.java:93）〜[spring-core-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.asSourceClass（ConfigurationClassParser.java:633）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser $ SourceClass.getSuperClass（ConfigurationClassParser.java:797）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass（ConfigurationClassParser.java:308）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass（ConfigurationClassParser.java:230）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.processMemberClasses（ConfigurationClassParser.java:329）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass（ConfigurationClassParser.java:247）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass（ConfigurationClassParser.java:230）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] 在org.springframework.context.annotation.ConfigurationClassParser.processImports（ConfigurationClassParser.java:532）〜[spring-context-4.3.5.RELEASE.jar：4.3.5.RELEASE] ...省略了15个常见帧

Answer 1

首先，你的pom非常凌乱。仅添加所需的依赖项。你只需要这个

   <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-neo4j</artifactId>
        <version>4.1.5.RELEASE</version>
    </dependency>  
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-neo4j-rest</artifactId>
        <version>3.4.6.RELEASE</version>
</dependency>

你的主要课程应该有这样的东西

@SpringBootApplication
@EnableNeo4jRepositories("com.in.neo4j.repository.neo")

我不确定你为什么要排除一些自动配置

Answer 2

您提供的引用不包含 Application.properties 。

因此，这是 Application.properties 文件，用于连接到Neo4j。

spring.data.neo4j.uri=bolt://localhost
spring.data.neo4j.username=neo4j
spring.data.neo4j.password=Your_Password

作为控制台应用程序启动Neo4j数据库，该应用程序最有可能在localhost：7474端口上运行。

启动命令：

neo4j console

还要检查依赖性。由于最新版本仅适用于

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-neo4j</artifactId>
</dependency>

将Neo4J与SpringBoot连接

2 个答案: