neo4j - 使用 Spring Boot 应用程序在 neo4j.ogm 上手动查询问题

Question

<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>org.springframework</groupId>
	<artifactId>NucleiAdmin</artifactId>
	<version>0.0.1-RELEASE</version>

	<name>NucleiAdmin</name>
	<url>http://maven.apache.org</url>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.2.2.RELEASE</version>
	</parent>
	<properties>
		<start-class>nuclei.Application</start-class>
		<java.version>1.7</java.version>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<tomcat.version>8.0.3</tomcat.version>
	</properties>

	<dependencies>
				
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		
		<dependency>
			<groupId>com.googlecode.json-simple</groupId>
			<artifactId>json-simple</artifactId>		
		</dependency>

		<!-- spring-data-neo4j -->
		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-neo4j</artifactId>
			<version>4.0.0.RC2</version>
		</dependency>

		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-neo4j-rest</artifactId>
			<version>3.0.1.RELEASE</version>
		</dependency>		

		<dependency>
			<groupId>org.neo4j</groupId>
			<artifactId>neo4j-cypher-compiler-2.1</artifactId>
			<version>2.1.5</version>
		</dependency>
				
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jersey</artifactId>
		</dependency>	

		<!-- test scoped beans only -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>net.wimpi</groupId>
			<artifactId>telnetd-x</artifactId>
			<version>2.1.1</version>
		</dependency>
	</dependencies>


	<build>
		<finalName>NucleiAdmin</finalName>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
				</configuration>
			</plugin>

		</plugins>
	</build>

	<repositories>
		<repository>
			<id>spring-libs-snapshot</id>
			<name>Spring</name>
			<url>http://repo.spring.io/libs-snapshot</url>
		</repository>

		<repository>
			<id>neo4j</id>
			<url>http://m2.neo4j.org/content/repositories/releases</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>

	</repositories>

	<packaging>war</packaging>
</project>

package nuclei.repository;

import java.util.Map;

import nuclei.domain.Blueprint;
import nuclei.domain.IaaSTemplate;

import org.springframework.data.neo4j.annotation.Query;
import org.springframework.data.neo4j.repository.GraphRepository;
import org.springframework.stereotype.Repository;

/**
 * @author Karthikeyan
 *
 */
@Repository
public interface BlueprintRepository extends GraphRepository<Blueprint>{
 
 @Query("MATCH (Blueprint:Blueprint{isDeleted:'0'}) RETURN id(Blueprint) as id,Blueprint") 
 Iterable<Map<String,Object>> getTemplateBlueprints(); 

 @Query("MATCH (n { name: {0} }) SET n.position = {1}")   
 Blueprint createNewTemplate(String name,String position);
}

在我的项目中，我使用 spring boot、neo4j 和 org.neo4j.ogm 库在 spring boot 上集成 neo4j。我可以实现 GraphRepository 的 findone、findall 和 save 方法。但是当使用我自己的查询插入一个值时，它显示了一个错误。我找不到问题的原因。我正在使用给定的查询 `@Query("CREATE (n:Person { name : 'Andres', title : 'Developer' })")

package nuclei.service;

import java.util.Map;

import nuclei.domain.Blueprint;
import nuclei.domain.IaaSTemplate;
import nuclei.repository.BlueprintRepository;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.neo4j.repository.GraphRepository;
import org.springframework.stereotype.Service;

/**
 * @author Karthikeyan
 *
 */
@Service("blueprintService")
public class BlueprintServiceImpl extends GenericService<Blueprint> implements
  BlueprintService {

 @Autowired
 private BlueprintRepository blueprintRepository;

 @Override
 public GraphRepository<Blueprint> getRepository() {
  return blueprintRepository;
 }

 @Override
 public Iterable<Map<String, Object>> getTemplateBlueprints() {
  return blueprintRepository.getTemplateBlueprints();
 }

 @Override
 public Blueprint createNewTemplate(String name,String position){
  return blueprintRepository.createNewTemplate(name,position);
 }
}

@RequestMapping(value = "/createBp", method = RequestMethod.POST)
  public @ResponseBody BlueprintMessage createBP(
    @FormDataParam("name") String name,
    @FormDataParam("position") String position,
    final HttpServletResponse response) {
   ResponseStatus status = null;
  // Long blueprintId = Long.parseLong(id);
   Blueprint entity = null;
   try {
    entity = blueprintService.createNewTemplate(name, position);
    //entity.setBlueprint(blueprint);
    //entity.setIsDeleted("0");

    super.create(entity);
    status = new ResponseStatus(ResponseStatusCode.STATUS_OK, "SUCCESS");
   } catch (Exception e) {
    e.printStackTrace();
   }
   return new BlueprintMessage(status, entity);
  }

package nuclei.service;

import java.util.Map;

import nuclei.domain.Blueprint;
import nuclei.domain.IaaSTemplate;

/**
 * @author Karthikeyan
 *
 */
public interface BlueprintService extends MainService<Blueprint> {

 Iterable<Map<String, Object>> getTemplateBlueprints();
 
 Blueprint createNewTemplate(String name,String position);
}

Answer 1

请升级到 SDN 4.0.0.RC2

以前的版本不允许修改 Cypher 语句以通过 query() 执行。