java - Hyperjaxb 3导入XSD和persistence.xml

Question

这是我第一次尝试使用Hyperjaxb3。我有 2 XSD 的片段，如下所示

ContractFullInfo.xsd

<xsd:import namespace="http://homecredit.net/homerselect/common/v1" schemaLocation="Common.xsd"/>

<xsd:element name = "ContractFullInfoRequest">
    <xsd:complexType>
        <xsd:sequence>
            <xsd:element name="systemEvent" type="common:ContractSystemEventType"/>
            <xsd:element name="data" type="ContractFullInfo"/>
        </xsd:sequence>
    </xsd:complexType>
</xsd:element>

<xsd:complexType name="ContractPerson">
    <xsd:sequence>
        <xsd:element name="cuid" type="xsd:long"/>
        <xsd:element name="personRole" type="PersonRoleType"/>
    </xsd:sequence>
</xsd:complexType>

Common.xsd

<xsd:complexType name="ContractPerson">
    <xsd:sequence>
        <xsd:element name="cuid" type="xsd:long"/>
        <xsd:element name="personRole" type="PersonRoleType"/>
    </xsd:sequence>
</xsd:complexType>

问题是它会生成两个 ContractPerson 类，如下所示:

        <class>net.homecredit.homerselect.common.v1.ContractPerson</class> <==
        <class>net.homecredit.homerselect.common.v1.MoneyDto</class>
        <class>net.homecredit.homerselect.contract.v3.BankAccount</class>
        <class>net.homecredit.homerselect.contract.v3.ClosedEndParameter</class>
        <class>net.homecredit.homerselect.contract.v3.ContractBase</class>
        <class>net.homecredit.homerselect.contract.v3.ContractCommodity</class>
        <class>net.homecredit.homerselect.contract.v3.ContractDocument</class>
        <class>net.homecredit.homerselect.contract.v3.ContractEvent</class>
        <class>net.homecredit.homerselect.contract.v3.ContractFullInfo</class>
        <class>net.homecredit.homerselect.contract.v3.ContractFullInfoRequest</class>
        <class>net.homecredit.homerselect.contract.v3.ContractParameter</class>
        <class>net.homecredit.homerselect.contract.v3.ContractPerson</class> <==
        <class>net.homecredit.homerselect.contract.v3.ContractService</class>
        <class>net.homecredit.homerselect.contract.v3.RefinancedContract</class>
        <class>net.homecredit.homerselect.contract.v3.RevolvingParameter</class>

它在部署期间给我错误

 Entity name must be unique in a persistence unit. Entity name [ContractPerson] is used for the entity classes [net.homecredit.homerselect.common.v1.ContractPerson] and [net.homecredit.homerselect.contract.v3.ContractPerson].

我的 Java 配置的一部分(我当前已评论)

  @Bean
    public DataSource dataSource() throws NamingException {
        return (DataSource) new JndiTemplate().lookup(env.getProperty("spring.datasource.jndi-name"));
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() throws NamingException {
        LocalContainerEntityManagerFactoryBean em
                = new LocalContainerEntityManagerFactoryBean();
        em.setPackagesToScan(new String[]{"net.homecredit.homerselect.contract.v3"});
        em.setPersistenceUnitName("net.homecredit.homerselect.common.v1:net.homecredit.homerselect.contract.v3");
        em.setJtaDataSource(dataSource());

        Properties properties = new Properties();
        properties.setProperty("hibernate.dialect", env.getProperty("spring.jpa.properties.hibernate.dialect"));
        properties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("spring.jpa.hibernate.ddl-auto"));
        em.setJpaProperties(properties);

        return em;
    }

我的问题:

1. 两个类完全相同。我该如何选择？
2. 我正在使用 Spring Boot，有没有办法使用 Spring Boot java 配置覆盖 persistence.xml ？

Answer 1

您的类不同，因为您的架构中有两种不同的复杂类型。它们还可能引用不同的 PersonRoleType，但如果没有看到完整的架构，就很难说。

虽然将这些复杂类型映射到同一个 Java 类并非不可能，但我不会这样做。这些在您的模式中是不同的类型，您也应该在 Java 中保持它们不同。

由于您遇到具有相同本地名称的类的问题，最简单的解决方案是重命名其中一个。使用如下绑定(bind):

<jaxb:bindings
    version="1.0"
    xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:hj="http://hyperjaxb3.jvnet.org/ejb/schemas/customizations"
    xmlns:orm="http://java.sun.com/xml/ns/persistence/orm"
    xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
    jaxb:extensionBindingPrefixes="xjc hj orm">

    <jaxb:bindings schemaLocation="Common.xsd" node="/xs:schema">
        <jaxb:bindings node="xs:complexType[@name='ContractPerson']">
            <jaxb:class name="CommonContractPerson"/>
        </jaxb:bindings>
    </jaxb:bindings>
</jaxb:bindings>