知识图谱springboot neo4j开发
时间: 2023-11-20 12:59:12 浏览: 89
neo4j构建知识图谱.docx
以下是使用Spring Boot和Neo4j开发知识图谱的步骤:
1. 在项目中添加Spring Boot和Neo4j的依赖,可以在pom.xml文件中添加以下依赖:
```xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-neo4j</artifactId>
</dependency>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-ogm-http-driver</artifactId>
<version>3.2.11</version>
</dependency>
```
2. 配置Neo4j数据库连接信息,可以在application.properties文件中添加以下配置:
```
spring.data.neo4j.uri=bolt://localhost:7687
spring.data.neo4j.username=neo4j
spring.data.neo4j.password=123456
```
3. 创建实体类,可以使用@NodeEntity注解将Java类映射为Neo4j中的节点,例如:
```java
@NodeEntity(label = "Person")
public class Person {
@Id
@GeneratedValue
private Long id;
private String name;
private int age;
// 省略getter和setter方法
}
```
4. 创建Repository接口,可以继承Neo4jRepository接口,例如:
```java
public interface PersonRepository extends Neo4jRepository<Person, Long> {
List<Person> findByName(String name);
}
```
5. 在Service中编写业务逻辑,例如:
```java
@Service
public class PersonService {
@Autowired
private PersonRepository personRepository;
public List<Person> findByName(String name) {
return personRepository.findByName(name);
}
public Person save(Person person) {
return personRepository.save(person);
}
}
```
6. 在Controller中编写接口,例如:
```java
@RestController
@RequestMapping("/person")
public class PersonController {
@Autowired
private PersonService personService;
@GetMapping("/findByName")
public List<Person> findByName(String name) {
return personService.findByName(name);
}
@PostMapping("/save")
public Person save(@RequestBody Person person) {
return personService.save(person);
}
}
```
阅读全文