爲什麼Neo4jTemplate覆蓋節點號碼而不是內容？

Question

這是我的pom.xml：

<dependency> 
      <groupId>org.springframework.data</groupId> 
      <artifactId>spring-data-neo4j</artifactId> 
      <version>3.2.0.RELEASE</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.data</groupId> 
      <artifactId>spring-data-neo4j-rest</artifactId> 
      <version>3.2.1.RELEASE</version> 
     </dependency> 

和config.xml中

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xmlns:neo4j="http://www.springframework.org/schema/data/neo4j" 
     xmlns:context="http://www.springframework.org/schema/context" 
     xsi:schemaLocation=" http://www.springframework.org/schema/beans 
          http://www.springframework.org/schema/beans/spring-beans.xsd 
          http://www.springframework.org/schema/data/neo4j 
          http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd"> 

    <!-- REST Connection to Neo4j server -->  
    <bean id="graphDatabaseService" 
      class="org.springframework.data.neo4j.rest.SpringRestGraphDatabase"> 
     <constructor-arg index="0" value="http://localhost:7474/db/data" /> 

    </bean> 

    <!-- graphDatabaseService- Neo4j configuration (creates Neo4jTemplate) --> 
    <neo4j:config 
      storeDirectory="db/neo4j/data/graph.db" 
      base-package="x.y.z.mediator.domain.model" 
      graphDatabaseService="graphDatabaseService"/> 

</beans> 

我想自動裝配的neo4jtemplate形式Neo4j的獨立服務器：

@Repository 
public class EmployeeDAO_Neo4j implements EmployeeDAO { 

    @Inject 
    private Neo4jTemplate neo4jTemplate; 


    @Override 
    public List<Map<String, Object>> findAll(String query) { 

     //Object is the node address 
     Result<Map<String, Object>> result = neo4jTemplate.query("MATCH (emp:`EmpBase`) RETURN emp;", null); 
     //Below line results with: {emp=http://localhost:7474/db/data/node/1} 
     System.out.println("Results:"+ result.as(List.class).get(1).toString()); 


     List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); 
     Map<String, Object> map = null; 



     for(EmployeeBase u : result.to(EmployeeBase.class)) { 
      map = new HashMap<String, Object>(); 
      map.put(u.getE_id().toString(), u.toString()); 

      list.add(map); 
     } 

     System.out.println(result.to(EmployeeBase.class).as(List.class).get(1)); 

     return list; 
    } 
} 

返回列表是4元素之一，但它說每System.out.println從上面的代碼：{e_id=1, e_bossId=null, e_name='null'}所以它是n加時賽填充，因爲測試數據是：

$ cat /tmp/empbase.csv 
e_id,e_bossid,e_name 
11,11,Smith 
12,11,Johnson 
13,11,Roberts 
14,13,Doe 

與結果行只給出：{emp=http://localhost:7474/db/data/node/1}

的數據Neo4j的服務器來自CSV導入。 empfull.csv：

CREATE empbase; 

// Import data and schema for empbase; the '_EmpBase' is required by SpringData-neo4j 
USING PERIODIC COMMIT 500 
LOAD CSV WITH HEADERS FROM "file:/tmp/empbase.csv" AS row 
CREATE (:EmpBase:_EmpBase { neo_eb_id:  row.e_id, 
        neo_eb_bossID: row.e_bossid, 
        neo_eb_name: row.e_name}); 

//Create index 
CREATE INDEX ON :EmpBase:(neo_eb_id); 

// Create relationships 
LOAD CSV WITH HEADERS FROM "file:/tmp/empbase.csv" AS row 
MATCH (employee:EmpBase:_EmpBase {neo_eb_id: row.e_id}) 
MATCH (manager:EmpBase:_EmpBase  {neo_eb_id: row.e_bossid}) 
MERGE (employee)-[:REPORTS_TO]->(manager); 

它是SDN或某事的錯誤是不對的配置？

PS。 xml config中的db/neo4j/data/graph.db永遠不會生成。我跑這個項目mvn clear package PS2： 這是EmployeeBase.java

@NodeEntity 
public class EmployeeBase { 

    @GraphId 
    private Long e_id; 

    private Integer e_bossId; 
    private String e_name; 

    public Long getE_id() { 
     return e_id; 
    } 

    public Integer getE_bossId() { 
     return e_bossId; 
    } 

    public String getE_name() { 
     return e_name; 
    } 

    @Override 
    public String toString() { 
     return "{" + 
       "e_id=" + e_id + 
       ", e_bossId=" + e_bossId + 
       ", e_name='" + e_name + '\'' + 
       '}'; 
    } 

}

Answer 1

因爲你在進口使用了錯誤的屬性名稱，你前綴他們都與neo_eb而不是e_。你還有一些錯別字在e_bossId

CREATE empbase; 

// Import data and schema for empbase; the '_EmpBase' is required by SpringData-neo4j 
USING PERIODIC COMMIT 500 
LOAD CSV WITH HEADERS FROM "file:/tmp/empbase.csv" AS row 
CREATE (:EmpBase:_EmpBase { e_id:  row.e_id, 
        e_bossId: row.e_bossid, 
        e_name: row.e_name}); 

//Create index 
CREATE INDEX ON :EmpBase:(e_id); 

// Create relationships 
LOAD CSV WITH HEADERS FROM "file:/tmp/empbase.csv" AS row 
MATCH (employee:EmpBase:_EmpBase {e_id: row.e_id}) 
MATCH (manager:EmpBase:_EmpBase  {e_id: row.e_bossid}) 
MERGE (employee)-[:REPORTS_TO]->(manager);