配置hibernate数据源的5种方法

文章摘自：https://blog.csdn.net/zljjava/article/details/7535710

Spring配置文件中关于事务配置总是由三个组成部分，DataSource、TransactionManager和代理机制这三部分，无论是那种配置方法，一般变化的只是代理机制这块！

 

首先我创建了两个类，一个接口一个实现：

package com.dao;
public interface UserDao {
    public void getUser();
}

 

实现：

package com.dao.impl;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.dao.UserDao;
public class UserDaoImpl extends HibernateDaoSupport implements UserDao {
    public void getUser(){
    }
}

 

 

第一种：每个Bean都有一个代理：

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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">

    <bean id="dataSource"
        class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url"
            value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" />
        <property name="username" value="root" />
        <property name="password" value="root" />

        <property name="initialSize" value="10" />

        <property name="maxActive" value="10" />

        <property name="maxIdle" value="20" />

        <property name="minIdle" value="10" />
        <property name="defaultAutoCommit" value="true" />
    bean>

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mappingLocations">
            <list>
                <value>classpath:/com/nms/entity/**/*.hbm.xmlvalue>
            list>
        property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.MySQL5Dialect
                prop>
                <prop key="hibernate.show_sql">trueprop>
                <prop key="hibernate.format_sql">trueprop>
            props>
        property>
    bean>

    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    bean>

    <bean id="userDaoAgency" class="com.dao.impl.UserDaoImpl">
        <property name="sessionFactory" ref="sessionFactory" />
    bean>
    <bean id="userDao"
        class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">

        <property name="transactionManager" ref="transactionManager" />
        <property name="target" ref="userDaoAgency" />
        <property name="proxyInterfaces" value="com.dao.UserDao" />

        <property name="transactionAttributes">
            <props>
                <prop key="*">PROPAGATION_REQUIREDprop>
            props>
        property>
    bean>
beans>

 

 

第二种：所有Bean共享一个代理：

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

    "dataSource"
        class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        "driverClassName" value="com.mysql.jdbc.Driver" />
        "url"
            value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" />
        "username" value="root" />
        "password" value="root" />

        "initialSize" value="10" />

        "maxActive" value="10" />

        "maxIdle" value="20" />

        "minIdle" value="10" />
        "defaultAutoCommit" value="true" />


    "sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        "dataSource" ref="dataSource" />
        "mappingLocations">

                classpath:/com/nms/entity/**/*.hbm.xml


        "hibernateProperties">

                "hibernate.dialect">
                    org.hibernate.dialect.MySQL5Dialect

                "hibernate.show_sql">true
                "hibernate.format_sql">true




    "transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        "sessionFactory" ref="sessionFactory" />


    "base"
        class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
        lazy-init="true" abstract="true">

        "transactionManager" ref="transactionManager" />

        "transactionAttributes">

                "*">PROPAGATION_REQUIRED




    "userDao"
        class="com.dao.impl.UserDaoImpl">
        "sessionFactory" ref="sessionFactory" />


    "userDaoAgency" parent="base">
        "target" ref="userDao" />

 

 

第三种：拦截器：

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

    "dataSource"
        class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        "driverClassName" value="com.mysql.jdbc.Driver" />
        "url"
            value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" />
        "username" value="root" />
        "password" value="root" />

        "initialSize" value="10" />

        "maxActive" value="10" />

        "maxIdle" value="20" />

        "minIdle" value="10" />
        "defaultAutoCommit" value="true" />


    "sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        "dataSource" ref="dataSource" />
        "mappingLocations">

                classpath:/com/nms/entity/**/*.hbm.xml


        "hibernateProperties">

                "hibernate.dialect">
                    org.hibernate.dialect.MySQL5Dialect

                "hibernate.show_sql">true
                "hibernate.format_sql">true




    "transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        "sessionFactory" ref="sessionFactory" />


    "transactionInterceptor"
        class="org.springframework.transaction.interceptor.TransactionInterceptor">
        "transactionManager" ref="transactionManager" />

        "transactionAttributes">

                "*">PROPAGATION_REQUIRED



    class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
        "beanNames">

                *DaoImpl


        "interceptorNames">

                transactionInterceptor




    "userDaoAgency" class="com.dao.impl.UserDaoImpl">
        "sessionFactory" ref="sessionFactory" />

 

 

第四种：使用tx标签配置的拦截器：

"1.0" encoding="UTF-8"?>
"http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

    "dataSource"
        class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        "driverClassName" value="com.mysql.jdbc.Driver" />
        "url"
            value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" />
        "username" value="root" />
        "password" value="root" />

        "initialSize" value="10" />

        "maxActive" value="10" />

        "maxIdle" value="20" />

        "minIdle" value="10" />
        "defaultAutoCommit" value="true" />


    "sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        "dataSource" ref="dataSource" />
        "mappingLocations">

                classpath:/com/nms/entity/**/*.hbm.xml


        "hibernateProperties">

                "hibernate.dialect">
                    org.hibernate.dialect.MySQL5Dialect

                "hibernate.show_sql">true
                "hibernate.format_sql">true




    package="com.dao" />

    "transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        "sessionFactory" ref="sessionFactory" />


    "txAdvice" transaction-manager="transactionManager">

            "*" propagation="REQUIRED" />




        "interceptorPointCuts" expression="execution(* com.dao.*.*(..))" />
        "txAdvice" pointcut-ref="interceptorPointCuts" />

 

 

第五种：注解：

"1.0" encoding="UTF-8"?>
"http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

    "dataSource"
        class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        "driverClassName" value="com.mysql.jdbc.Driver" />
        "url"
            value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" />
        "username" value="root" />
        "password" value="root" />

        "initialSize" value="10" />

        "maxActive" value="10" />

        "maxIdle" value="20" />

        "minIdle" value="10" />
        "defaultAutoCommit" value="true" />


    "sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        "dataSource" ref="dataSource" />
        "mappingLocations">

                classpath:/com/nms/entity/**/*.hbm.xml


        "hibernateProperties">

                "hibernate.dialect">
                    org.hibernate.dialect.MySQL5Dialect

                "hibernate.show_sql">true
                "hibernate.format_sql">true





    package="com.dao" />

    "transactionManager"/>

    "transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        "sessionFactory" ref="sessionFactory" />

 

如果使用了注解，那么实现类应该这样写：

package com.dao.impl;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import com.dao.UserDao;
@Transactional
@Component("userDaoAgency")
public class UserDaoImpl extends HibernateDaoSupport implements UserDao {
    /**
     * 为方法增加事务处理特性
     */
    @Transactional(readOnly=true)
    public void getUser(){
    }
}