如何在 Spring MVC 应用程序的 Hibernate 中打印生成的 SQL？

Question

我正在使用 Hibernate 开发 Spring MVC 应用程序。以下是我的调度程序 servlet 代码：

<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
                    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd     
                    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
                    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"> 

    <mvc:annotation-driven/>
    <mvc:resources mapping="/resources/**" location="/resources/" />
    <context:component-scan base-package="com.example.abc" />
    <tx:annotation-driven/>
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
    <bean id="jndiDataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName" value="java:/MySqlDS" />
    </bean>
    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="jndiDataSource" />
        <property name="packagesToScan" value="com.example.abc"></property>
    </bean>
    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
</beans>

我没有任何 Hibernate 配置文件，因为 Hibernate 映射是在模型类中完成的。我需要打印从 Hibernate 语句生成的 SQL。

Answer 1

更新您的 sessionFactory 如下：

<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="jndiDataSource" />
    <property name="packagesToScan" value="com.example.abc"></property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.show_sql">true</prop>
        </props>
    </property>
</bean>