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我想创建一个基于Hibernate-3和Spring Framework的 Java 应用程序。为了简化这个过程，我找到了能够对现有数据库执行逆向工程的hibernate3-maven-plugin 。
这里有一个POM的例子：

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>hibernate3-maven-plugin</artifactId>
    <version>2.2</version>
    <configuration>
        <components>
            <component>
                <name>hbm2java</name>
                <outputDirectory>src/main/java</outputDirectory>
                <implementation>jdbcconfiguration</implementation>
            </component>
            <component>
                <name>hbm2dao</name>
                <outputDirectory>src/main/java</outputDirectory>
                <implementation>jdbcconfiguration</implementation>
            </component>
        </components>
        <componentProperties>
            <revengfile>/src/main/resources/model.reveng.xml</revengfile>
            <propertyfile>/src/main/resources/hibernate.properties</propertyfile>
            <jdk5>true</jdk5>
            <ejb3>true</ejb3>
        </componentProperties>
    </configuration>
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.18</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib-nodep</artifactId>
            <version>2.1_3</version>
        </dependency>
    </dependencies>
    <executions>
        <execution>
            <phase>compile</phase>
            <goals>
                <goal>hbm2java</goal>
                <goal>hbm2dao</goal>
            </goals>
        </execution>
    </executions>
</plugin>

然后我设置了 Spring 的上下文： 

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

        <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
            <property name="persistenceUnitName" value="gomer" />
        </bean>

        <bean id="entityManager" factory-bean="entityManagerFactory" factory-method="createEntityManager"/>

        <bean id="user" class="ru.tomtrix.first.db.UserHome">
            <property name="entityManager" ref="entityManager"/>
        </bean>
    </beans>

它完美地生成了一个Entity文件和一个DAO文件，除了以下内容。在 DAO 文件中有一个 EntityManager：

@Stateless
public class UserHome {

    private static final Log log = LogFactory.getLog(UserHome.class);

    @PersistenceContext private EntityManager entityManager;

...而且这个领域还没有二传手！最终 Spring 抛出异常： 

Invalid property 'entityManager' of bean class [ru.tomtrix.first.db.UserHome]: Bean property 'entityManager' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

当然，手动编写 setter 并不是一个好习惯。我认为有一种方法可以正确地注入经理。那么如何在不重写生成文件的情况下做到这一点呢？

对应信息：
1）我想创建一个独立的应用程序（并可能在像Tomcat这样的应用程序服务器中运行它）
2）model.reveng.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-reverse-engineering SYSTEM "http://www.hibernate.org/dtd/hibernate-reverse-engineering-3.0.dtd">
<hibernate-reverse-engineering>
    <table-filter match-name=".*" package="ru.tomtrix.first.db"/>
</hibernate-reverse-engineering>

3）持久性.xml：

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" 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_1_0.xsd">

    <persistence-unit name="gomer" transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
        <class>User</class>
        <properties>
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
            <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
            <property name="hibernate.show_sql" value="true"/>
            <property name="hibernate.connection.username" value="root"/>
            <property name="hibernate.connection.password" value="1234"/>
            <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/users"/>
        </properties>
    </persistence-unit>
</persistence>
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1 回答 1

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问题是您缺少配置的一部分。您需要告诉 Spring 您想要（也）使用注解进行配置。为此，添加<context:annotation-config />到您的配置中并删除entityManager

接下来删除工厂方法的调用，spring 将为您处理所有这些。

添加了使用无版本模式的提示

<?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: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/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:annotation-config />

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
        <property name="persistenceUnitName" value="gomer" />
    </bean>

    <bean id="user" class="ru.tomtrix.first.db.UserHome" />

</beans>

当您将代码部署到成熟的应用服务器时，您的代码可能会出现问题，并且您可能会遇到 Spring 和 EJB 容器争夺 bean 控制权的问题。hibernate 插件生成@Stateless会话 bean，通常会被应用程序拾取。服务器（取决于您使用哪一个）。

于 2014-02-10T07:19:04.880 回答