springboot整合neo4j

刚开始按网上博客搭建 spring boot 和 neo4j一直报sessionFactory找不到，直到下载了spring-data-neo4j的实例demo对比才搭建成功，而且用户名是neo4j，不是创建一个数据库时的名字，搞了几个小时终于搞成功了。以后还是多看官方文档，搜来搜去，什么鬼都搜不到。记录一下自己踩的坑。

工程地址：https://github.com/CNXXPP/neo4j-demo

pom文件

是springboot进行过封装的spring-boot-starter-data-neo4j提供了一些基础的方法,有点像spring-data-jpa

<?xml version="1.0" encoding="UTF-8"?>





<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.xp</groupId>





   <artifactId>neo4j-demo</artifactId>





   <version>0.0.1-SNAPSHOT</version>





   <packaging>jar</packaging>





 





   <name>neo4j-demo</name>





   <description>Demo project for Spring Boot</description>





 





   <parent>





      <groupId>org.springframework.boot</groupId>





      <artifactId>spring-boot-starter-parent</artifactId>





      <version>2.0.3.RELEASE</version>





      <relativePath/> <!-- lookup parent from repository -->





   </parent>





 





   <properties>





      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>





      <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>





      <java.version>1.8</java.version>





   </properties>





 





   <dependencies>





      <dependency>





         <groupId>org.springframework.boot</groupId>





         <artifactId>spring-boot-starter-data-neo4j</artifactId>





      </dependency>





         <!--<dependency>-->





            <!--<groupId>org.neo4j.driver</groupId>-->





            <!--<artifactId>neo4j-java-driver</artifactId>-->





         <!--</dependency>-->





 





      <dependency>





         <groupId>org.springframework.boot</groupId>





         <artifactId>spring-boot-starter-test</artifactId>





         <scope>test</scope>





      </dependency>





   </dependencies>





 





   <build>





      <plugins>





         <plugin>





            <groupId>org.springframework.boot</groupId>





            <artifactId>spring-boot-maven-plugin</artifactId>





         </plugin>





      </plugins>





   </build>





 





 





</project>

@NodeEntity(label = "user")





public class UserNode implements Serializable {





 





    @Id @GeneratedValue





    private Long id;





 





    private  String name;





 





    private String userId;





 





    private String companyId;





 





    public String getName() {





        return name;





    }





 





    public void setName(String name) {





        this.name = name;





    }





 





    public String getUserId() {





        return userId;





    }





 





    public void setUserId(String userId) {





        this.userId = userId;





    }





 





    public String getCompanyId() {





        return companyId;





    }





 





    public void setCompanyId(String companyId) {





        this.companyId = companyId;





    }





 





    @Override





    public String toString() {





        return "UserNode{" +





                "id=" + id +





                ", name='" + name + '\'' +





                ", userId='" + userId + '\'' +





                ", companyId='" + companyId + '\'' +





                '}';





    }





}

dao类

@Repository





public interface UserRepository extends Neo4jRepository<UserNode,Long>{





 





}

测试类

@Component





public class UserRepositoryTest extends Neo4jDemoApplicationTests{





 





    Logger logger = LoggerFactory.getLogger(UserRepositoryTest.class);





 





    @Autowired





    UserRepository userRepository;





 





    @Test





    public void createUserNode(){





        System.out.println(userRepository);





        UserNode userNode = new UserNode();





        userNode.setName("xupan");





        userNode.setUserId("123");





        UserNode save = userRepository.save(userNode);





        logger.info(save.toString());





        Assert.assertTrue(save!=null);





    }





 





    @Test





    public void delAll(){





       userRepository.deleteById(new Long(27));





 





    }





}

启动类的@EnableNeo4jRepositories一定要加

@SpringBootApplication





@EnableNeo4jRepositories





public class Neo4jDemoApplication {





 





   public static void main(String[] args) {





      SpringApplication.run(Neo4jDemoApplication.class, args);





   }





}

Application.yml

spring:





  data:





    neo4j:





      uri: bolt://localhost:7687





      username: neo4j





      password: 1123

原文地址：https://blog.csdn.net/d597180714/article/details/81079848