实体管理器未持久存储在数据库中

Question

[我用jpa发送了一个表单来发送客户端（对服务的检查值，这又调用dao将客户端持久保存在db中，该过程无一例外地完成了，但是客户端没有使用实体管理器持久化]]

控制器

@RequestMapping(value="/enregistrer")
    public String enregistrerClient(Model model, Client client){
        if(client == null){
            System.out.println("client is null");
        }else{
            System.out.println("name : "+client.getNom()+" prenom "+client.getPrenom());
            client = clientService.save(client);
        }

        return "redirect:/clients/";
    }
服务（所有方法都是transactionnal）

public Client save(Client entity) {
        //entity.setIdClient(4);
        Client c = dao.save(entity);
        System.out.println("saved element "+c.getNom());
        return c;
    }
和道

    @PersistenceContext
    EntityManager em;

@Override
    public E save(E entity) {
        try{
            em.persist(entity);
        }catch(Exception e){
            e.printStackTrace();
        }
        return entity;
    }
没有打印任何异常

这是我的应用程序上下文

    <bean name="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/gestion_stock_mvc?createDatabaseIfNotExist=true"></property>
        <property name="username" value="root"></property>
        <property name="password" value=""></property>  
    </bean>

    <bean name="persistenceUnitManager" class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
            <property name="persistenceXmlLocations">
            <list>
                <value>classpath*:META-INF/persistence.xml</value>
            </list>
        </property>
        <property name="defaultDataSource" ref="dataSource"></property> 
    </bean>

    <bean name="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="persistenceUnitManager" ref="persistenceUnitManager"></property>
        <property name="persistenceUnitName" value="UP_GESTION_DE_STOCK_MVC"></property>
    </bean>

    <bean name="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory"></property>
    </bean>

    <context:component-scan base-package="stock.mvc" />
    <context:annotation-config/>
和我的坚持小组

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
              http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">

    <persistence-unit name="UP_GESTION_DE_STOCK_MVC"
        transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <properties>
            <property name="hibernate.hbm2ddl.auto" value="update" />
            <property name="hibernate.show_sql" value="true" />
        </properties>
    </persistence-unit>
</persistence>

[我用jpa发送了一个表单来发送客户端（检查值后又调用dao将该客户端持久保存在db中，该过程无一例外地完成了，但是客户端没有持久化...

Answer 1

通过添加以下配置来解决