我不確定其他人是否曾經找到一個好或更好的答案,但這是我發現的工作。我有一個春季啓動項目運行,我會發布一些最相關的代碼和例子在這個答案,但看到整個REST服務項目,檢查https://github.com/jrspriggs/Chronicler
因此,小應用程序的目的atm是創造參與故事的角色/生物,創造故事(以題目和slu line線爲特徵),並在存在與故事之間建立一種關係,與存在於關係中的故事的角度一致。這樣它就從每個角色收集故事的各種版本。
neo4j實例只是我的Windows筆記本電腦上的Docker/Kitematic中的一個基本neo4j實例。下面是型號:
Being.java:
package com.chronicler.model;
import java.util.Iterator;
import java.util.Set;
import org.springframework.data.neo4j.annotation.Fetch;
import org.springframework.data.neo4j.annotation.GraphId;
import org.springframework.data.neo4j.annotation.NodeEntity;
import org.springframework.data.neo4j.annotation.RelatedTo;
import org.springframework.data.neo4j.annotation.RelatedToVia;
@NodeEntity
public class Being {
public Long getId() {
return id;
}
@GraphId private Long id;
private String firstName;
private String lastName;
private boolean hero;
private boolean villain;
@RelatedToVia(type="TOOK_PART_IN")
@Fetch private Set<Involvement> involvements;
public Set<Involvement> getInvolvements() {
return involvements;
}
public void setInvolvements(Set<Involvement> involvements) {
this.involvements = involvements;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public boolean isHero() {
return hero;
}
public void setHero(boolean hero) {
this.hero = hero;
}
public boolean isVillain() {
return villain;
}
public void setVillain(boolean villain) {
this.villain = villain;
}
}
Story.java
package com.chronicler.model;
import org.springframework.data.neo4j.annotation.GraphId;
import org.springframework.data.neo4j.annotation.NodeEntity;
@NodeEntity
public class Story {
public Long getId() {
return id;
}
@GraphId private Long id;
private String title;
private String slug;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getSlug() {
return slug;
}
public void setSlug(String slug) {
this.slug = slug;
}
}
Involvement.java(即以故事之間的關係)
package com.chronicler.model;
import org.springframework.data.neo4j.annotation.EndNode;
import org.springframework.data.neo4j.annotation.Fetch;
import org.springframework.data.neo4j.annotation.GraphId;
import org.springframework.data.neo4j.annotation.RelationshipEntity;
import org.springframework.data.neo4j.annotation.StartNode;
@RelationshipEntity(type="TOOK_PART_IN")
public class Involvement {
@GraphId private Long relationshipId;
@Fetch @StartNode private Being being;
@Fetch @EndNode private Story story;
private String perspective;
public Long getRelationshipId() {
return relationshipId;
}
public void setRelationshipId(Long relationshipId) {
this.relationshipId = relationshipId;
}
public Being getBeing() {
return being;
}
public void setBeing(Being being) {
this.being = being;
}
public Story getStory() {
return story;
}
public void setStory(Story story) {
this.story = story;
}
public String getPerspective() {
return perspective;
}
public void setPerspective(String perspective) {
this.perspective = perspective;
}
}
從那裏我基本上有爲彈簧數據服務設置的基礎類庫備件資源類。那些照顧實體,但他們沒有真正處理我的關係。什麼是實現一個單獨的休息路線保存
BeingController.java:
package com.chronicler;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.chronicler.model.Involvement;
import com.chronicler.repo.InvolvementRepository;
@RestController
public class BeingController {
@Autowired
InvolvementRepository involvementRepository;
@RequestMapping(value="/beingStory", method=RequestMethod.POST)
public Involvement createBeingStoryRelationship(@RequestBody Involvement involvement) {
involvementRepository.save(involvement);
return involvement;
}
}
從那裏,只是張貼到localhost:3000/beingStory具有以下一種JSON身體會準確地創建關係:
{
"character": {
"id": 17,
"firstName": "Dr. Victor",
"lastName": "Frankenstein",
"hero": true,
"villain": true
},
"story": {
"id": 15,
"title": "Frankenstein",
"slug": "A doctor plays god"
},
"relationshipId": 10,
"perspective": "I did a monstrous thing. I wanted to create life, but I created horrors... such unimaginable horrors, such that mankind has not ever imagined."
}
從那時開始,您可以將人與人之間的關係轉化爲故事。我將來需要添加更多內容,因爲我通過此示例應用程序進一步實現了用於查看所選故事中的角色參與的反向關係,並且我打算在角色之間添加關係。
假設您正在尋找有關使用Spring Data Neo4j創建/修改關係的文檔,您是否看到過http://docs.spring.io/spring-data/neo4j/docs/current/reference/html/ – Luanne