Hibernate извлекает данные из двух таблиц с взаимно однозначным отображением

У меня есть две таблицы «Person» и PersonDetail. Теперь я хочу получить данные из этих таблиц с использованием HQL.Hibernate извлекает данные из двух таблиц с взаимно однозначным отображением

Как мне это сделать? Должен ли я писать отдельные запросы, как и в

this

ссылку, или я должен написать присоединиться запрос ??

Как отображать данные из этих двух таблиц на одной странице?

Мой рабочий код

///////////////////////// Main App ////////// ////////////////////

package com; 

import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.boot.context.web.SpringBootServletInitializer; 

@SuppressWarnings("deprecation") 
@SpringBootApplication 
public class SpringBootWeb1Application extends SpringBootServletInitializer{ 

    public static void main(String[] args) { 
     SpringApplication.run(SpringBootWeb1Application.class, args); 
    } 
}

/////////////////////// ///////// IndexController ////////////////////

package com.controller; 

import org.springframework.stereotype.Controller; 
import org.springframework.web.bind.annotation.RequestMapping; 

@Controller 
public class IndexController { 
    @RequestMapping("/") 
    String index(){ 
     return "index"; 
    } 
}

///////////// /////////// PersonController ///////////////////

package com.controller; 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Controller; 


import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.PathVariable; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 


import com.model.Person; 
import com.service.PersonService; 

@Controller 
public class PersonController { 
    @Autowired 
    private PersonService personService; 

    @Autowired 
     public void setPersonService(PersonService personService) { 
      this.personService = personService; 
     } 


     @RequestMapping(value = "/persons", method = RequestMethod.GET) 
     public String list(Model model){ 
      model.addAttribute("persons", personService.listAllPersons()); 

      return "persons"; 
     } 


     @RequestMapping("person/{id}") 
     public String showPerson(@PathVariable Integer id, Model model){ 
      model.addAttribute("person", personService.getPersonById(id)); 
      return "personshow"; 
     } 


     @RequestMapping("person/edit/{id}") 
     public String edit(@PathVariable Integer id, Model model){ 
      model.addAttribute("person", personService.getPersonById(id)); 
      return "personform"; 
     } 


     @RequestMapping("person/new") 
     public String newPerson(Model model){ 
      model.addAttribute("person", new Person()); 
      return "personform"; 
     } 


     @RequestMapping(value = "person", method = RequestMethod.POST) 
     public String saveProduct(Person person){ 
      personService.savePerson(person); 
      return "redirect:/person/" + person.getId(); 
     } 


     @RequestMapping("person/delete/{id}") 
     public String delete(@PathVariable Integer id){ 
      personService.deletePerson(id); 
      /*return "redirect:/products";*/ 
      return "personform"; 

     } 


}

///////////////////////////////// Лицо ////////// ////////////////

package com.model; 

import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 

@Entity 
public class Person { 
    @Id 
     @GeneratedValue(strategy = GenerationType.AUTO) 
     private Integer id; 
     private String name; 
     public Integer getId() { 
      return id; 
     } 
     public void setId(Integer id) { 
      this.id = id; 
     } 
     public String getName() { 
      return name; 
     } 
     public void setName(String name) { 
      this.name = name; 
     } 

}

/////////////////////////// // PersonDetail /////////////////////////////

package com.model; 

import javax.persistence.Column; 
import javax.persistence.Entity; 
import javax.persistence.FetchType; 
import javax.persistence.GeneratedValue; 
import javax.persistence.Id; 
import javax.persistence.OneToOne; 
import javax.persistence.PrimaryKeyJoinColumn; 
import javax.persistence.Table; 

import org.hibernate.annotations.GenericGenerator; 


@Entity 
@Table(name = "PersonDetail", catalog = "myschema") 
public class PersonDetail { 
    @Id 
    @GeneratedValue 
    private Integer id; 
    private String address; 
    private Integer age; 

    @OneToOne(fetch=FetchType.LAZY) 
    @PrimaryKeyJoinColumn 
    private Person person; 

    public PersonDetail(){} 

    public PersonDetail(Integer id,String address,Integer age) 
    { 
     this.id=id; 
     this.address=address; 
     this.age=age; 
    } 

    @GenericGenerator(name = "generator", strategy = "foreign") 
      @Id 
      @GeneratedValue(generator = "generator") 
      @Column(name = "id", unique = true, nullable = false) 
    public Integer getId() { 
     return id; 
    } 


    public void setId(Integer id) { 
     this.id = id; 
    } 

    @Column(name = "address", nullable = false, length = 20) 
    public String getAddress() { 
     return address; 
    } 


    public void setAddress(String address) { 
     this.address = address; 
    } 

    @Column(name = "age", nullable = false) 
    public Integer getAge() { 
     return age; 
    } 


    public void setAge(Integer age) { 
     this.age = age; 
    } 
    @OneToOne(fetch = FetchType.LAZY) 
    @PrimaryKeyJoinColumn 
    public Person getPerson() { 
     return person; 
    } 

    public void setPerson(Person person) { 
     this.person = person; 
    } 


}

/////////// ////////////////// PersonRepository //////////////////////////////

package com.repository; 

import org.springframework.data.repository.CrudRepository; 
import org.springframework.stereotype.Repository; 

import com.model.Person; 
@Repository 
public interface PersonRepository extends CrudRepository<Person, Integer>{ 
}

////////////////////////// PersonDetailRepository /////////////////////

package com.repository; 

import org.springframework.data.repository.CrudRepository; 

import com.model.PersonDetail; 

public interface PersonDetailRepository extends CrudRepository<PersonDetail, Integer>{ 

}

/////////////////////////////// Служба //////////// ///////////

package com.service; 

import com.model.Person; 



public interface PersonService { 
    Iterable<Person> listAllPersons(); 

     Person getPersonById(Integer id); 

     Person savePerson(Person person); 

     void deletePerson(Integer id); 
}

/////////////////////////////// ServiceImpl /////////////////////

package com.service; 

import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Service; 


import com.model.Person; 
import com.repository.PersonRepository; 
@Service 
public class PersonServiceImpl implements PersonService{ 
    private PersonRepository personRepository; 

     @Autowired 
     public void setPersonRepository(PersonRepository personRepository) { 
      this.personRepository = personRepository; 
     } 


    @Override 
    public Iterable<Person> listAllPersons() { 
     // TODO Auto-generated method stub 
     return personRepository.findAll(); 
    } 

    @Override 
    public Person getPersonById(Integer id) { 
     // TODO Auto-generated method stub 
     return personRepository.findOne(id); 
    } 

    @Override 
    public Person savePerson(Person person) { 
     // TODO Auto-generated method stub 
     return personRepository.save(person); 
    } 
    @Override 
     public void deletePerson(Integer id) { 
      personRepository.delete(id); 

     } 
}

////////////////////// //index.jsp/////////////////////////////

<!DOCTYPE html> 
<html xmlns:th="http://www.thymeleaf.org"> 
<head lang="en"> 

    <title>Spring Boot Example</title> 
    <!-- <th:block th:include="fragments/headerinc :: head"></th:block> --> 
</head> 
<body> 
<div class="container"> 
    <div th:fragment="header"> 
     <nav class="navbar navbar-default"> 
      <div class="container-fluid"> 
       <div class="navbar-header"> 
        <a class="navbar-brand" href="#" th:href="@{/}">Home</a> 
        <ul class="nav navbar-nav"> 
         <li><a href="#" th:href="@{/persons}">Persons</a></li> 
         <li><a href="#" th:href="@{/person/new}">Create Person</a></li> 
        </ul> 

       </div> 
      </div></nav></div> 
<!-- <div class="container"> --> 
    <!-- <th:block th:include="fragments/header :: header"></th:block> --> 
</div> 
</body> 
</html>

///////////////////////// personform./////////////////////////// JSP

<!DOCTYPE html> 
<html xmlns:th="http://www.thymeleaf.org"> 
<head lang="en"> 

    <title>Spring Boot Example</title> 

    <th:block th:include="fragments/headerinc :: head"></th:block> 
</head> 
<body> 
<div class="container"> 
    <th:block th:include="fragments/header :: header"></th:block> 

    <h2>Person Details</h2> 
    <div> 
     <form class="form-horizontal" th:object="${person}" th:action="@{/person}" method="post"> 
      <input type="hidden" th:field="*{id}"/> 

      <div class="form-group"> 
       <label class="col-sm-2 control-label">Person Id:</label> 
       <div class="col-sm-10"> 
        <input type="text" class="form-control" th:field="*{id}"/> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label class="col-sm-2 control-label">Name:</label> 
       <div class="col-sm-10"> 
        <input type="text" class="form-control" th:field="*{name}"/> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label class="col-sm-2 control-label">Address:</label> 
       <div class="col-sm-10"> 
        <input type="text" class="form-control" th:field="*{address}"/> 
       </div> 
      </div> 
      <div class="form-group"> 
       <label class="col-sm-2 control-label">Age:</label> 
       <div class="col-sm-10"> 
        <input type="text" class="form-control" th:field="*{age}"/> 
       </div> 
      </div> 

      <div class="row"> 
       <button type="submit" class="btn btn-default">Submit</button> 
      </div> 
     </form> 
    </div> 
</div> 

</body> 
</html>

/////////////// ////////// лица //////////////////////

<!DOCTYPE html> 
<html xmlns:th="http://www.thymeleaf.org"> 
<head lang="en"> 

    <title>Spring Boot Example</title> 

    <th:block th:include="fragments/headerinc :: head"></th:block> 
</head> 
<body> 
<div class="container"> 
    <!--/*/ <th:block th:include="fragments/header :: header"></th:block> /*/--> 
    <div th:if="${not #lists.isEmpty(persons)}"> 
     <h2>Person List</h2> 
     <table class="table table-striped"> 
      <tr> 
       <th>Id</th> 
       <th>Person Id</th> 
       <th>Name</th> 
       <th>Age</th> 
       <th>Address</th> 

       <th>View</th> 
       <th>Edit</th> 
       <th>Delete</th> 
      </tr> 
      <tr th:each="person : ${persons}"> 
       <td th:text="${person.id}"><a href="/person/${id}">Id</a></td> 
       <td th:text="${person.id}">Person Id</td> 
       <td th:text="${person.name}">description</td> 
       <td th:text="${person.personDetail.address}">Address</td> 
       <td th:text="${person.personDetail.age}">Age</td> 
       <!-- <td th:text="${product.price}">price</td> --> 
       <td><a th:href="${ '/person/' + person.id}">View</a></td> 
       <td><a th:href="${'/person/edit/' + person.id}">Edit</a></td> 
       <td><a th:href="${'/person/delete/' + person.id}">Delete</a></td> 
      </tr> 
     </table> 

    </div> 
</div> 

</body> 
</html>

////////// //////////////// personhow /////////////////////////////

<!DOCTYPE html> 
<html xmlns:th="http://www.thymeleaf.org"> 
<head lang="en"> 

    <title>Person Details</title> 

    <th:block th:include="fragments/headerinc :: head"></th:block> 
</head> 
<body> 
<div class="container"> 
    <!--/*/ <th:block th:include="fragments/header :: header"></th:block> /*/--> 

    <h2>Person Details</h2> 
     <div> 
      <form class="form-horizontal"> 
       <div class="form-group"> 
        <label class="col-sm-2 control-label">Person Id:</label> 
        <div class="col-sm-10"> 
         <p class="form-control-static" th:text="${person.id}">Person Id</p></div> 
       </div> 
       <div class="form-group"> 
        <label class="col-sm-2 control-label">Name:</label> 
        <div class="col-sm-10"> 
         <p class="form-control-static" th:text="${person.name}">name</p> 
        </div> 
       </div> 
       <div class="form-group"> 
        <label class="col-sm-2 control-label">Address:</label> 
        <div class="col-sm-10"> 
         <p class="form-control-static" th:text="${person.personDetail.address}">address</p> 
        </div> 
       </div> 
       <div class="form-group"> 
        <label class="col-sm-2 control-label">Name:</label> 
        <div class="col-sm-10"> 
         <p class="form-control-static" th:text="${person.personDetail.address}">age</p> 
        </div> 
       </div> 

      </form> 
    </div> 
</div> 

</body> 
</html>

StackTrace:

2016-09-09 15:37:49.866 ERROR 3836 --- [   main] o.s.boot.SpringApplication    : Application startup failed 

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: Unknown mappedBy in: com.model.Person.personDetail, referenced property unknown: com.model.PersonDetail.Person 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1076) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:851) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] 
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] 
    at com.SpringBootWeb1Application.main(SpringBootWeb1Application.java:12) [classes/:na] 
Caused by: org.hibernate.AnnotationException: Unknown mappedBy in: com.model.Person.personDetail, referenced property unknown: com.model.PersonDetail.Person 
    at org.hibernate.cfg.OneToOneSecondPass.doSecondPass(OneToOneSecondPass.java:154) ~[hibernate-core-5.0.9.Final.jar:5.0.9.Final] 
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1655) ~[hibernate-core-5.0.9.Final.jar:5.0.9.Final] 
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1623) ~[hibernate-core-5.0.9.Final.jar:5.0.9.Final] 
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:278) ~[hibernate-core-5.0.9.Final.jar:5.0.9.Final] 
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:847) ~[hibernate-entitymanager-5.0.9.Final.jar:5.0.9.Final] 
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:874) ~[hibernate-entitymanager-5.0.9.Final.jar:5.0.9.Final] 
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:338) ~[spring-orm-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:362) ~[spring-orm-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE] 
    ... 16 common frames omitted

источник

2016-09-09 A P

Вы указаны все гибернации класс сущностей в файле конфигурации боб ... например: Человек и PersonDetails. – Gokul

Я использовал Spring Boot. Нет файла конфигурации –

Как я вижу ошибку. У вас нет отношения как ..com.model.Person.personDetail. Вместо этого у вас есть отношение com.model.PersonDetail.person. Здесь в картировании вы должны иметь небольшой p. как я могу видеть в вашем объекте PersonDetail. частное лицо лица; – Gokul

String hql = "FROM PersonDetail pd JOIN pd.person"; 
     Query query = session.createQuery(hql); 
     List<PersonDetail> personalDetailsList= query.list();

Первый Iterate выше список, то вы можете получить человек деталь, как показано ниже ...

while() // Iterate above list 
{ 
    Person person=personalDetails.getPerson(); 
}

источник

2016-09-09 06:14:49 Gokul

спасибо. и должен ли я включить дополнительный jsp для отображения этих комбинированных данных? Если я хочу отобразить его на уже созданном jsp, скажем, personal.jsp, как мне это сделать? –

вы можете сделать это в существующем jsp ... просто манипулировать полученными данными в соответствии с вашим jsp требуется – Gokul

Предположим, я хочу отображать данные из обеих таблиц в people.jsp. Как мне это сделать? –

Hibernate извлекает данные из двух таблиц с взаимно однозначным отображением

ответ

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