neo4j.ogm 使用 spring 启动应用程序的关系问题

Question

在我的项目中，我使用 org.neo4j.ogm 和 spring 启动。当我尝试使用 @RelationshipEntity 创建关系时，意味着它将成功创建。但是不支持多对一关系

在这里，我在 RELATED_TO_ScTaxonomy 上的关系中为 Blueprint 与 ScTaxonomy 创建关系。我想为 catalogueBlueprint class.

添加关系属性

我的意思是 Blueprint-(RELATED_TO_ScTaxonomy)-ScTaxonomy with catalogueBlueprint class 值保存在 RELATED_TO_ScTaxonomy。

一旦我重新启动服务然后我将创建一个新连接意味着已经创建的关系将丢失并且只保存新创建的关系。

我正在使用

的查询

package nuclei.domain;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.neo4j.ogm.annotation.Relationship;

import com.fasterxml.jackson.annotation.JsonIgnore;

public class Blueprint extends Entity {

 private String blueprint;
 private String onIaas;
 private String script;

 private String isDeleted;

 @Relationship(type = "iaaSTemplate", direction = Relationship.INCOMING)
 IaaSTemplate iaaSTemplate;

 @Relationship(type = "iaasParameters")
 List<IaasParameters> iaasParameters;

 @Relationship(type = "tasks")
 List<Tasks> tasks;

 @Relationship(type = "RELATED_TO_ScTaxonomy")
 @JsonIgnore
    public List<CatalogueBlueprint> relations;
 
 
 public Blueprint() {
  iaaSTemplate = new IaaSTemplate();
  iaasParameters = new ArrayList<IaasParameters>();
  tasks = new ArrayList<Tasks>();
  relations = new ArrayList<CatalogueBlueprint>();
 }
 
  public void addRelation(ScTaxonomy scTaxonomyRelation,CatalogueBlueprint catalogueBlueprint) {
   catalogueBlueprint.blueprintRelation = this;
   catalogueBlueprint.scTaxonomyRelation = scTaxonomyRelation;
   
   relations.add(catalogueBlueprint);
 /*  relations.setCatalogueBlueprintId(catalogueBlueprint.getCatalogueBlueprintId());
   relations.setOnIaas(catalogueBlueprint.getOnIaas());
   relations.setScript(catalogueBlueprint.getScript());
   relations.setX_axis(catalogueBlueprint.getX_axis());
   relations.setY_axis(catalogueBlueprint.getY_axis());
   relations.setStep(catalogueBlueprint.getStep());
   relations.setIsDeleted(catalogueBlueprint.getIsDeleted());*/
   
      scTaxonomyRelation.relations.add(catalogueBlueprint);
     }

 public Blueprint(String blueprint, String onIaas, String script,
   String isDeleted) {
  this.blueprint = blueprint;
  this.onIaas = onIaas;
  this.script = script;
  this.isDeleted = isDeleted;
 }

 public String getBlueprint() {
  return blueprint;
 }

 public void setBlueprint(String blueprint) {
  this.blueprint = blueprint;
 }

 public String getOnIaas() {
  return onIaas;
 }

 public void setOnIaas(String onIaas) {
  this.onIaas = onIaas;
 }

 public String getScript() {
  return script;
 }

 public void setScript(String script) {
  this.script = script;
 }

 public String getIsDeleted() {
  return isDeleted;
 }

 public void setIsDeleted(String isDeleted) {
  this.isDeleted = isDeleted;
 }

 public List<IaasParameters> getIaasParameters() {
  return iaasParameters;
 }

 public void setIaasParameters(List<IaasParameters> iaasParameters) {
  this.iaasParameters = iaasParameters;
 }

 public List<Tasks> getTasks() {
  return tasks;
 }

 public void setTasks(List<Tasks> tasks) {
  this.tasks = tasks;
 }

 public IaaSTemplate getIaaSTemplate() {
  return iaaSTemplate;
 }

 public void setIaaSTemplate(IaaSTemplate iaaSTemplate) {
  this.iaaSTemplate = iaaSTemplate;
 }

 public List<CatalogueBlueprint> getRelations() {
  return relations;
 }

 public void setRelations(List<CatalogueBlueprint> relations) {
  this.relations = relations;
 }

}

/**
 * 
 */
package nuclei.domain;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.neo4j.ogm.annotation.Relationship;

/**
 * @author Karthikeyan
 *
 */

public class ScTaxonomy extends Entity {

 private String taxName; 
 private String description;
 private String isDeleted;
 private String step;
 private String serviceCatalogueStep; 
 private String x_axis;
 private String y_axis;

 @Relationship(type = "RELATED_TO_ScTaxonomy", direction = "INCOMING")
    public List<CatalogueBlueprint> relations;
 
 public ScTaxonomy() {
  relations = new ArrayList<>(); 
 }

 public ScTaxonomy(String taxName, String description, String isDeleted,String step,String serviceCatalogueStep,
   String x_axis,String y_axis) {
  this.taxName=taxName;
  this.description = description;  
  this.isDeleted = isDeleted; 
  this.step=step;
  this.serviceCatalogueStep=serviceCatalogueStep;
  this.x_axis=x_axis;
  this.y_axis=y_axis;
 }

 public String getTaxName() {
  return taxName;
 }

 public void setTaxName(String taxName) {
  this.taxName = taxName;
 }

 public String getDescription() {
  return description;
 }

 public void setDescription(String description) {
  this.description = description;
 }

 public String getIsDeleted() {
  return isDeleted;
 }

 public void setIsDeleted(String isDeleted) {
  this.isDeleted = isDeleted;
 }

 public String getStep() {
  return step;
 }

 public void setStep(String step) {
  this.step = step;
 }

 public String getServiceCatalogueStep() {
  return serviceCatalogueStep;
 }

 public void setServiceCatalogueStep(String serviceCatalogueStep) {
  this.serviceCatalogueStep = serviceCatalogueStep;
 }

 public String getX_axis() {
  return x_axis;
 }

 public void setX_axis(String x_axis) {
  this.x_axis = x_axis;
 }

 public String getY_axis() {
  return y_axis;
 }

 public void setY_axis(String y_axis) {
  this.y_axis = y_axis;
 }

 public List<CatalogueBlueprint> getRelations() {
  return relations;
 }

 public void setRelations(List<CatalogueBlueprint> relations) {
  this.relations = relations;
 } 
  
}

package nuclei.domain;

import java.util.List;

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

@RelationshipEntity(type="catalogueBlueprint")
public class CatalogueBlueprint extends Entity {

 private long catalogueBlueprintId;
 private String onIaas;
 private String script;
 private String x_axis;
 private String y_axis;
 private String step;
 private String isDeleted;

 @StartNode
    public  Blueprint blueprintRelation;
 
 @EndNode
 public ScTaxonomy scTaxonomyRelation;
 
 public CatalogueBlueprint() {
 
 }

 public CatalogueBlueprint(ScTaxonomy to,Blueprint from, String onIaas, String script,long catalogueBlueprintId,
   String isDeleted,String x_axis,String y_axis,String step) {
  
  this.scTaxonomyRelation=to;
  this.blueprintRelation=from;
  this.onIaas = onIaas;
  this.script = script;
  this.isDeleted = isDeleted;
  this.x_axis=x_axis;
  this.y_axis=y_axis;
  this.step=step;
  this.catalogueBlueprintId=catalogueBlueprintId;
 }

 public long getCatalogueBlueprintId() {
  return catalogueBlueprintId;
 }

 public void setCatalogueBlueprintId(long catalogueBlueprintId) {
  this.catalogueBlueprintId = catalogueBlueprintId;
 }

 public String getOnIaas() {
  return onIaas;
 }

 public void setOnIaas(String onIaas) {
  this.onIaas = onIaas;
 }

 public String getScript() {
  return script;
 }

 public void setScript(String script) {
  this.script = script;
 }

 public String getX_axis() {
  return x_axis;
 }

 public void setX_axis(String x_axis) {
  this.x_axis = x_axis;
 }

 public String getY_axis() {
  return y_axis;
 }

 public void setY_axis(String y_axis) {
  this.y_axis = y_axis;
 }

 public String getStep() {
  return step;
 }

 public void setStep(String step) {
  this.step = step;
 }

 public String getIsDeleted() {
  return isDeleted;
 }

 public void setIsDeleted(String isDeleted) {
  this.isDeleted = isDeleted;
 }

 public ScTaxonomy getScTaxonomyRelation() {
  return scTaxonomyRelation;
 }

 public void setScTaxonomyRelation(ScTaxonomy scTaxonomyRelation) {
  this.scTaxonomyRelation = scTaxonomyRelation;
 }

 public Blueprint getBlueprintRelation() {
  return blueprintRelation;
 }

 public void setBlueprintRelation(Blueprint blueprintRelation) {
  this.blueprintRelation = blueprintRelation;
 }

}

/**
 * 
 */
package nuclei.controller;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import nuclei.domain.CatalogueBlueprint;
import nuclei.domain.IaaSTemplate;
import nuclei.domain.IaasParameters;
import nuclei.domain.ScTaxonomy;
import nuclei.domain.Tasks;
import nuclei.domain.Blueprint;
import nuclei.response.BlueprintMessage;
import nuclei.response.BlueprintsMessage;
import nuclei.response.CatalogueBlueprintMessage;
import nuclei.response.ResponseStatus;
import nuclei.response.ResponseStatusCode;
import nuclei.service.CatalogueBlueprintService;
import nuclei.service.MainService;
import nuclei.service.BlueprintService;
import nuclei.service.ScTaxonomyService;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.sun.jersey.multipart.FormDataParam;

/**
 * @author Karthikeyan
 *
 */

// @RestController
@Controller
public class BlueprintController extends MainController<Blueprint> {

 @Autowired
 private CatalogueBlueprintService catalogueBlueprintService;
 
 @Autowired
 private ScTaxonomyService scTaxonomyService;
 
 @Autowired
 private BlueprintService blueprintService;


 //create scTaxonomy relation
  @RequestMapping(value = "/createScTaxonomyRelation", method = RequestMethod.POST)
  public @ResponseBody BlueprintMessage relationTest(
    @FormDataParam("ScTaxonomyId") String ScTaxonomyId,
    @FormDataParam("blueprintId") String blueprintId,
    @FormDataParam("catalogueBlueprintId") String catalogueBlueprintId,  
    @FormDataParam("onIaas") String onIaas,
    @FormDataParam("script") String script,
    @FormDataParam("step") String step,   
    @FormDataParam("x_axis") String x_axis,
    @FormDataParam("y_axis") String y_axis,
    final HttpServletResponse response) {
   
   ResponseStatus status = null;
   Long blueptId = Long.parseLong(blueprintId);
   Long taxonomyId = Long.parseLong(ScTaxonomyId); 
   List<CatalogueBlueprint> catalogueBPList =  new ArrayList<CatalogueBlueprint>();
   CatalogueBlueprint catalogueBP=new CatalogueBlueprint();
   Blueprint blueprint=null;  
   ScTaxonomy taxonomy = null;
   try {
    
    Long catalogueID=Long.parseLong(catalogueBlueprintId);
    taxonomy = scTaxonomyService.find(taxonomyId);
         
    blueprint=blueprintService.find(blueptId);
    
    catalogueBP.setBlueprintRelation(blueprint);
    catalogueBP.setScTaxonomyRelation(taxonomy);
    
    catalogueBP.setOnIaas(onIaas);
    catalogueBP.setCatalogueBlueprintId(catalogueID);
    catalogueBP.setScript(script); 
    catalogueBP.setStep(step);   
    catalogueBP.setX_axis(x_axis);
    catalogueBP.setY_axis(y_axis);
    catalogueBP.setIsDeleted("0");  
    
    catalogueBPList.add(catalogueBP);     
      
    blueprint.addRelation(taxonomy, catalogueBP);
    
    super.create(blueprint);
    //super.update(blueptId, blueprint);
   
    status = new ResponseStatus(ResponseStatusCode.STATUS_OK, "SUCCESS");
   } catch (Exception e) {
    e.printStackTrace();
   }
   return new BlueprintMessage(status, blueprint);
  }

 @Override
 public MainService<Blueprint> getService() {
  return blueprintService;
 }

 
}

Answer 1

我删除了所有依赖项并为所有依赖项添加了更新版本，然后错误未显示并且应用程序运行成功。

neo4j.ogm 使用 spring 启动应用程序的关系问题

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