spring中jdbc的配置

实现了数据库加密访问,读写分离,事物,动态数据源,druid
applicationContext-jdbc.xml

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

    <!-- 引入jdbc配置文件 -->
    <!--<context:property-placeholder location="classpath:jdbc.properties" />-->
    <!-- 配置进行解密  -->
    <bean id="propertyConfigurer" class="com.zheng.common.plugin.EncryptPropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
                <value>classpath:redis.properties</value>
            </list>
        </property>
    </bean>

    <!-- 主库数据源 -->
    <bean id="masterDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init"
          destroy-method="close">
        <!-- 基本属性 url、user、password -->
        <property name="driverClassName" value="${master.jdbc.driver}"/>
        <property name="url" value="${master.jdbc.url}"/>
        <property name="username" value="${master.jdbc.username}"/>
        <property name="password" value="${master.jdbc.password}"/>
        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="1"/>
        <property name="minIdle" value="1"/>
        <property name="maxActive" value="20"/>
        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="60000"/>
        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000"/>
        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="300000"/>
        <!-- 校验语句 -->
        <property name="validationQuery" value="SELECT 1"/>
        <property name="testWhileIdle" value="true"/>
        <property name="testOnBorrow" value="false"/>
        <property name="testOnReturn" value="false"/>
        <!-- 配置监控统计拦截的filters -->
        <property name="filters" value="stat"/>
    </bean>

    <!-- 从库数据源 -->
    <bean id="slaveDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <!-- 基本属性 url、user、password -->
        <property name="driverClassName" value="${slave.jdbc.driver}"/>
        <property name="url" value="${slave.jdbc.url}"/>
        <property name="username" value="${slave.jdbc.username}"/>
        <property name="password" value="${slave.jdbc.password}"/>
        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="1"/>
        <property name="minIdle" value="1"/>
        <property name="maxActive" value="20"/>
        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="60000"/>
        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000"/>
        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="300000"/>
        <!-- 校验语句 -->
        <property name="validationQuery" value="SELECT 1"/>
        <property name="testWhileIdle" value="true"/>
        <property name="testOnBorrow" value="false"/>
        <property name="testOnReturn" value="false"/>
        <!-- 配置监控统计拦截的filters -->
        <property name="filters" value="stat"/>
    </bean>

    <!-- 动态数据源 -->
    <bean id="dataSource" class="com.zheng.common.db.DynamicDataSource">
        <property name="targetDataSources">
            <map key-type="java.lang.String">
                <!-- 可配置多个数据源 -->
                <entry value-ref="masterDataSource" key="masterDataSource"></entry>
                <entry value-ref="slaveDataSource" key="slaveDataSource"></entry>
            </map>
        </property>
        <property name="defaultTargetDataSource" ref="masterDataSource"></property>
    </bean>

    <!-- 为Mybatis创建SqlSessionFactory，同时指定数据源 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <property name="mapperLocations" value="classpath*:com/zheng/upms/dao/mapper/*Mapper.xml"/>
    </bean>
    <!-- Mapper接口所在包名，Spring会自动查找其下的Mapper -->
    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="**.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

    <!-- 事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 启动注解事务 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

com.zheng.common.plugin.EncryptPropertyPlaceholderConfigurer

package com.zheng.common.plugin;

import com.zheng.common.util.AESUtil;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;

/**
 * 支持加密配置文件插件
 * Created by ZhangShuzheng on 2017/2/4.
 */
public class EncryptPropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer {

    private String[] propertyNames = {
        "master.jdbc.password", "slave.jdbc.password", "generator.jdbc.password", "master.redis.password"
    };

    /**
     * 解密指定propertyName的加密属性值
     * @param propertyName
     * @param propertyValue
     * @return
     */
    @Override
    protected String convertProperty(String propertyName, String propertyValue) {
        for (String p : propertyNames) {
            if (p.equalsIgnoreCase(propertyName)) {
                return AESUtil.aesDecode(propertyValue);
            }
        }
        return super.convertProperty(propertyName, propertyValue);
    }

}

jdbc.properties

master.jdbc.driver=${datasource.master.jdbc.driver}
master.jdbc.url=${datasource.master.jdbc.url}
master.jdbc.username=${datasource.master.jdbc.username}
master.jdbc.password=${datasource.master.jdbc.password}
slave.jdbc.driver=${datasource.slave.jdbc.driver}
slave.jdbc.url=${datasource.slave.jdbc.url}
slave.jdbc.username=${datasource.slave.jdbc.username}
slave.jdbc.password=${datasource.slave.jdbc.password}

redis.properties

master.redis.ip=${master.redis.ip}
master.redis.port=${master.redis.port}
master.redis.password=${master.redis.password}
master.redis.max_active=${master.redis.max_active}
master.redis.max_idle=${master.redis.max_idle}
master.redis.max_wait=${master.redis.max_wait}
master.redis.timeout=${master.redis.timeout}