Spring Data Neo4J Database Connection
I am trying to connect to Neo4J database using Spring Data With following link (http://projects.spring.io/spring-data-neo4j/#quick-start). But it doesn't seem to work. Its not able to create Repository Implementation by itself. Thats why I am getting BeanCreationException. Here what I have tried so far.
@Configuration
@EnableTransactionManagement
@ComponentScan("com.ksh.neo4j")
@EnableNeo4jRepositories("com.ksh.neo4j.repositories")
public class PersistenceContext {
@Bean
public org.neo4j.ogm.config.Configuration getConfiguration()
{
org.neo4j.ogm.config.Configuration configuration = new org.neo4j.ogm.config.Configuration();
configuration.driverConfiguration()
.setDriverClassName("org.neo4j.ogm.drivers.http.driver.HttpDriver")
.setURI("http://localhost:7474");
return configuration;
}
@Bean
public Neo4jTransactionManager transactionManager() {
return new Neo4jTransactionManager(getSessionFactory());
}
@Bean
public SessionFactory getSessionFactory() {
return new SessionFactory("com.ksh.neo4j.domains");
}
}
@Repository
public interface PersonRepository extends GraphRepository<Person> {
}
@Service
public class PersonService {
@Autowired
private PersonRepository personRepository;
public Person save(Person person) {
return personRepository.save(person);
}
}
@RestController
@RequestMapping("/person/**")
public class PersonController {
@Autowired
private PersonService personService;
@RequestMapping("/save")
public ResponseObject save(@RequestBody Person person)
{
try {
personService.save(person);
return ResponseObjectCreator.createResponseObj(ResponseStatus.SUCSESS);
}
catch (Exception e) {
e.printStackTrace();
}
return ResponseObjectCreator.createResponseObj(ResponseStatus.FAILURE);
}
}
@Configuration
@EnableWebMvc
@ComponentScan(basePackages = {"com.ksh.neo4j.controllers", "com.ksh.neo4j"})
public class WebMvcConfig extends WebMvcConfigurerAdapter {]
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-commons</artifactId>
<version>1.13.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-neo4j</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-ogm-embedded-driver</artifactId>
<version>2.1.2</version>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-ogm-core</artifactId>
<version>2.1.1</version>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-ogm-http-driver</artifactId>
<version>2.1.1</version>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-kernel</artifactId>
<version>3.1.3</version>
</dependency>
<dependency>
<groupId>org.neo4j.app</groupId>
<artifactId>neo4j-server</artifactId>
<version>3.1.3</version>
</dependency>
I am getting following exception
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.neo4j.ogm.session.SessionFactory]: Factory method 'getSessionFactory' threw exception; nested exception is org.neo4j.ogm.exception.ServiceNotFoundException: Could not load driver: null.
Any Help Will Be Good.
You didn't say which version you are using, but if you are using 4.2.1 then the quick start seems to be missing transaction manager definition:
Add following to your PersistenceContext class:
@Bean
public Neo4jTransactionManager transactionManager() {
return new Neo4jTransactionManager(sessionFactory());
}
Please refer to spring-data-neo4j documentation for further details.
http://docs.spring.io/spring-data/data-neo4j/docs/current/reference/html/#reference.getting_started.spring-configuration
链接地址: http://www.djcxy.com/p/68776.html上一篇: mysql的utf8字符问题