一、相关配置

1. Neo4j官方建议Spring Boot 2.4.x及以上版本用neo4j-java-driver代替spring-boot-starter

   1. 2.4.x及以下pom.xml添加springboot-data-neo4j依赖

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

      1. 测试函数 ```java @SpringBootTest class LzzProjectNeo4jApplicationTests {

      @Autowired CompanyNodeRepository companyNodeRepository;

      @Test public void testQuery() { Optional company = companyNodeRepository.findById(13673L); System.out.println(company); } } ```

   2. 2.4.x及以上pom.xml添加neo4j-java-driver依赖

      <dependency>
      <groupId>org.neo4j.driver</groupId>
      <artifactId>neo4j-java-driver-spring-boot-starter</artifactId>
      <version>4.3.6.0</version> 
      </dependency>

      1. 测试函数

         public class test {
         @Test
         public static void main(String[] args) {
         Driver driver = GraphDatabase.driver("bolt://localhost:7687", AuthTokens.basic("neo4j", "123456"));
         Session session = driver.session();
         // 查询
         Result result = session.run("MATCH (p:商品) WHERE p.name = \"商品1\" RETURN p.name as name, p.price as price");
         while (result.hasNext()) {
            Record record = result.next();
            String name = record.get("name").asString();
            Integer price = record.get("price").asInt();
            System.out.println(name + "\t" + price);
         }
         session.close();
         driver.close();
         }
         }

2. application.properties添加配置

   spring.data.neo4j.uri=bolt://localhost:7687
   spring.data.neo4j.username=neo4j
   spring.data.neo4j.password=*****

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