Spring Boot：Boot2.0版本整合Neo4j

<div class="show-content-free"> 前面介紹了<a href="https://www.jianshu.com/p/4afc2652b6f5" target="_blank">Boot 1.5版本集成Neo4j</a>，Boot 2.0以上版本Neo4j變化較大。 場景仍是<a href="https://www.jianshu.com/p/8222a9330b88" target="_blank">電影人員關係</a> <h4>Boot 2.0主要變化</h4> <ol> <li>GraphRepository在Boot2.0下不支持了，調整爲Neo4jRepository。 對應的findById和deleteById也要調整。</li> <li>@GraphId也不支持須要改爲@Id @GeneratedValue 。</li> <li>連接方式調整爲bolt://192.168.1.8:7687</li> </ol> <h2>Demo</h2> <ol> <li>pom文件 調整boot的版本</li> </ol> <pre class="hljs xml"><code class="xml"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.0.RELEASE</version> <relativePath/>  </parent> </code></pre> <ol start="2"> <li>application.yml配置</li> </ol> <pre class="hljs cpp"><code class="cpp">spring: data: neo4j: uri: bolt://192.168.1.8:7687 username: neo4j password: 123456 </code></pre> <ol start="3"> <li>模型類調整爲 Person類</li> </ol> <pre class="hljs java"><code class="java">package com.github.davidji80.springboot.neo4j.model;css

import org.neo4j.ogm.annotation.*;html

@NodeEntity(label = "Person") public class Person { @Id @GeneratedValue private Long nodeId;java

<span class="hljs-meta">@Property</span>(name = <span class="hljs-string">"name"</span>)
<span class="hljs-keyword">private</span> String name;

<span class="hljs-meta">@Property</span>(name = <span class="hljs-string">"born"</span>)
<span class="hljs-keyword">private</span> <span class="hljs-keyword">int</span> born;

<span class="hljs-function"><span class="hljs-keyword">public</span> Long <span class="hljs-title">getNodeId</span><span class="hljs-params">()</span> </span>{
    <span class="hljs-keyword">return</span> nodeId;
}

<span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setNodeId</span><span class="hljs-params">(Long nodeId)</span> </span>{
    <span class="hljs-keyword">this</span>.nodeId = nodeId;
}


<span class="hljs-function"><span class="hljs-keyword">public</span> String <span class="hljs-title">getName</span><span class="hljs-params">()</span> </span>{
    <span class="hljs-keyword">return</span> name;
}

<span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setName</span><span class="hljs-params">(String name)</span> </span>{
    <span class="hljs-keyword">this</span>.name = name;
}

<span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">int</span> <span class="hljs-title">getBorn</span><span class="hljs-params">()</span> </span>{
    <span class="hljs-keyword">return</span> born;
}

<span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setBorn</span><span class="hljs-params">(<span class="hljs-keyword">int</span> born)</span> </span>{
    <span class="hljs-keyword">this</span>.born = born;
}

} </code></pre>node

<ol start="4"> <li>DAO調整爲 PersonRepository</li> </ol> <pre class="hljs css"><code class="css">package com.github.davidji80.springboot.neo4j.dao;git

public interface PersonRepository extends Neo4jRepository<Person, Long> { } </code></pre>spring

<ol start="5"> <li>Service層調整</li> </ol> <pre class="hljs css"><code class="css">package com.github.davidji80.springboot.neo4j.service.impl;springboot

import com.github.davidji80.springboot.neo4j.dao.ActedInRepository; import com.github.davidji80.springboot.neo4j.dao.DirectedRepository; import com.github.davidji80.springboot.neo4j.dao.MovieRepository; import com.github.davidji80.springboot.neo4j.dao.PersonRepository; import com.github.davidji80.springboot.neo4j.model.ActedIn; import com.github.davidji80.springboot.neo4j.model.Directed; import com.github.davidji80.springboot.neo4j.model.Movie; import com.github.davidji80.springboot.neo4j.model.Person; import com.github.davidji80.springboot.neo4j.service.MovieServer; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service;app

import java.util.Optional;ide

@Service public class MovieServiceImpl implements MovieServer {

@<span class="hljs-keyword">Autowired</span>
private PersonRepository personRepository;
@<span class="hljs-keyword">Autowired</span>
private MovieRepository movieRepository;
@<span class="hljs-keyword">Autowired</span>
private DirectedRepository directedRepository;
@<span class="hljs-keyword">Autowired</span>
private ActedInRepository actedInRepository;

@<span class="hljs-keyword">Override</span>
public Person addPerson(Person person){
    <span class="hljs-selector-tag">return</span> <span class="hljs-selector-tag">personRepository</span><span class="hljs-selector-class">.save</span>(<span class="hljs-selector-tag">person</span>);
}
@<span class="hljs-keyword">Override</span>
public Person findOnePerson(long id){
    <span class="hljs-selector-tag">return</span> <span class="hljs-selector-tag">personRepository</span><span class="hljs-selector-class">.findById</span>(<span class="hljs-selector-tag">id</span>)<span class="hljs-selector-class">.get</span>();
}
@<span class="hljs-keyword">Override</span>
public void deleteOnePerson(long id){
    <span class="hljs-selector-tag">personRepository</span><span class="hljs-selector-class">.deleteById</span>(<span class="hljs-selector-tag">id</span>);
}
@<span class="hljs-keyword">Override</span>
public Movie addMovie(Movie movie){
    <span class="hljs-selector-tag">return</span> <span class="hljs-selector-tag">movieRepository</span><span class="hljs-selector-class">.save</span>(<span class="hljs-selector-tag">movie</span>);
}
@<span class="hljs-keyword">Override</span>
public Movie findOneMovie(long id){
    <span class="hljs-selector-tag">return</span> <span class="hljs-selector-tag">movieRepository</span><span class="hljs-selector-class">.findById</span>(<span class="hljs-selector-tag">id</span>)<span class="hljs-selector-class">.get</span>();
}
@<span class="hljs-keyword">Override</span>
public Directed directed(Directed directed){
    <span class="hljs-selector-tag">return</span> <span class="hljs-selector-tag">directedRepository</span><span class="hljs-selector-class">.save</span>(<span class="hljs-selector-tag">directed</span>);
}
@<span class="hljs-keyword">Override</span>
public ActedIn actedIn(ActedIn actedIn) {
    <span class="hljs-selector-tag">return</span> <span class="hljs-selector-tag">actedInRepository</span><span class="hljs-selector-class">.save</span>(<span class="hljs-selector-tag">actedIn</span>);
}

} </code></pre>

<h2>代碼</h2> <a href="https://github.com/DavidJi80/springboot" target="_blank" rel="nofollow">https://github.com/DavidJi80/springboot</a> v0.8.1 <blockquote> 參考 <a href="https://blog.csdn.net/d597180714/article/details/81079848" target="_blank" rel="nofollow">https://blog.csdn.net/d597180714/article/details/81079848</a> <a href="https://www.cnblogs.com/zhangboyu/p/7580262.html" target="_blank" rel="nofollow">https://www.cnblogs.com/zhangboyu/p/7580262.html</a> </blockquote> 原文地址:https://www.jianshu.com/p/1aeeefb4fc7a </div>