springboot整合图像数据库Neo4j

//查询a的一个叫duchong的朋友
match (a)-[:Friend]->b
where b.name =‘duchong‘
return b

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

#neo4j
spring.data.neo4j.uri=http://localhost:7474
spring.data.neo4j.username=neo4j
spring.data.neo4j.password=123qwe

package com.dc.sb.web.neo4j;

import org.neo4j.ogm.annotation.GraphId;
import org.neo4j.ogm.annotation.NodeEntity;
import org.neo4j.ogm.annotation.Property;

/**
 * 节点实体类型-别名为User
 * @author DUCHONG
 * @since 2018-12-17 11:32
 **/
@NodeEntity(label = "User")
public class UserNode {
    //图形id
    @GraphId
    private Long nodeId;
    //属性
    @Property
    private String userId;
    //属性
    @Property
    private String userName;
    //属性
    @Property
    private int age;

    public Long getNodeId() {
        return nodeId;
    }

    public void setNodeId(Long nodeId) {
        this.nodeId = nodeId;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}

package com.dc.sb.web.neo4j;

import org.neo4j.ogm.annotation.EndNode;
import org.neo4j.ogm.annotation.GraphId;
import org.neo4j.ogm.annotation.RelationshipEntity;
import org.neo4j.ogm.annotation.StartNode;

/**
 * 关系节点类型
 * @author DUCHONG
 * @since 2018-12-17 11:39
 **/
@RelationshipEntity(type = "UserRelation")
public class UserRelation {

    @GraphId
    private Long id;
    //开始节点
    @StartNode
    private UserNode startNode;
    //结束节点
    @EndNode
    private EndNode endNode;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public UserNode getStartNode() {
        return startNode;
    }

    public void setStartNode(UserNode startNode) {
        this.startNode = startNode;
    }

    public EndNode getEndNode() {
        return endNode;
    }

    public void setEndNode(EndNode endNode) {
        this.endNode = endNode;
    }
}

package com.dc.sb.web.neo4j.dao;

import com.dc.sb.web.neo4j.UserNode;
import org.springframework.data.neo4j.annotation.Query;
import org.springframework.data.neo4j.repository.GraphRepository;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Component;

import java.util.List;

/**
 * @author DUCHONG
 * @since 2018-12-17 11:42
 **/
@Component
public interface UserRepository extends GraphRepository<UserNode> {

    @Query("MATCH (n: User) RETURN n")
    List<UserNode> getUserNodeList();

    @Query("CREATE (n: User{age:{age},userName:{userName}}) RETURN n")
    List<UserNode> addUserNodeList(@Param("userName") String userName, @Param("age") int age);

}

package com.dc.sb.web.neo4j.dao;

import com.dc.sb.web.neo4j.UserRelation;
import org.springframework.data.neo4j.annotation.Query;
import org.springframework.data.neo4j.repository.GraphRepository;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Component;

import java.util.List;

/**
 * 用户关系DO
 * @author DUCHONG
 * @since 2018-12-17 13:53
 **/
@Component
public interface UserRelationRepository extends GraphRepository<UserRelation> {

    @Query("match p= (n:User)<- [r: UserRelation]-> (n1:User) wheren.userId=(firstUserId) and n1.userId =(secondUserId) return p")
    List<UserRelation> findUserRelationByEachId (@Param(" firstUserId") String firstUserId, @Param ("secondUserId") String secondUserId) ;

    @Query ("match(fu:User) ,(su:User) where fu. userId=[firstUserId]and su.userId=[ secondUserId, create p= (fu)- [r:UserRelation]-> (su) return p")

    List<UserRelation> addUserRelation (@Param(" firstUserId") String firstUserId, @Param("secondUserId") String secondUserId) ;
}

package com.dc.sb.web.neo4j.service;

import com.dc.sb.web.neo4j.UserNode;
import com.dc.sb.web.neo4j.dao.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @author DUCHONG
 * @since 2018-12-17 14:02
 **/
@Service
public class Neo4jUserService {

    @Autowired
    private UserRepository userRepository;


    public void addUserNode(UserNode userNode){

        userRepository.addUserNodeList(userNode.getUserName(),userNode.getAge());
    }
}

package com.dc.sb.web.neo4j.controller;

import com.dc.sb.web.neo4j.UserNode;
import com.dc.sb.web.neo4j.service.Neo4jUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author DUCHONG
 * @since 2018-12-17 14:14
 **/
@RestController
public class Neo4jController {

    @Autowired
    private Neo4jUserService userService;

    @RequestMapping("/addUserNode")
    public String addUserNode(){

        UserNode userNode=new UserNode();
        userNode.setUserName("duchong");
        userNode.setAge(20);

        userService.addUserNode(userNode);

        return "add success ";
    }
}