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我想在這裏查詢的MongoDB我的代碼查詢的MongoDB冬眠OGM回報總是空
的persistence.xml
<?xml version="1.0"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="primary" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ogm.jpa.HibernateOgmPersistence</provider>
<properties>
<property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.JBossStandAloneJtaPlatform"/>
<property name="hibernate.ogm.datastore.provider" value="mongodb" />
<property name="hibernate.ogm.datastore.database" value="******" />
<property name="hibernate.ogm.datastore.host" value="******" />
<property name="hibernate.ogm.datastore.port" value="******" />
<property name="hibernate.ogm.datastore.username" value="******" />
<property name="hibernate.ogm.datastore.password" value="******" />
</properties>
</persistence-unit>
</persistence>
Flux.java
@Entity
@Table(catalog="f12", schema="public", name="enl_flux_f12_entry")
public class enl_flux_f12_entry{
@Id
public String id;
public String SYS_FluxName;
public byte[] SYS_ReadDateTime;
public String SYS_BaseNameZip;
public Long SYS_Status;
public String SYS_DateCreaERDF;
}
主要
public static void main(String[] args) throws ClassNotFoundException{
EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("primary");
EntityManager entityManager = entityManagerFactory.createEntityManager();
entityManager.getTransaction().begin();
enl_flux_f12_entry f = entityManager.find(Flux.class, "*id*");
System.out.println(f.id);
entityManager.flush();
entityManager.close();
}
MongoDB的
{
"_id" : ObjectId("rzerzer"),
"SYS_FluxName" : "zerzerze.xml",
"SYS_ReadDateTime" : Timestamp(6300883749567463, 83),
"SYS_BaseNameZip" : "rferfer.zip",
"SYS_Status" : NumberLong(1),
"SYS_DateCreaERDF" : "2016-03-01T20:38:48Z"
}
的問題是,entityManager.find返回總是空。我的代碼有問題嗎?
THX您的答覆。我修復了所有這些問題,但它仍然是時間戳。我應該把什麼類型放到SYS_ReadDateTime –
Hibernate OGM目前不支持時間戳。你可以嘗試將它映射爲字符串 – Davide
不,它不起作用:無法將java.lang.String字段設置爲org.bson.types.BSONTimestamp –