前言：我这里搭建好eclipse版的ssm+maven+tk.mybatis+redis及mybatis+spring多数据源配置集成的demo。新手快速上手直接看demo。
最后处提供完整高质量demo！！！
准备工作
1、redis下载及配置(demo中有)
(1)下载window或linux版(那本地需要装虚拟机)redis
(2)redis.conf修改(linux版也一样)
注释：# bind 127.0.0.1
密码：requirepass 123(自定义密码)
(3)运行，双击redis-startup.bat运行
redis-startup.bat是我自己写的脚本，内容很简单
redis-server.exe redis.conf2、Eclipse配置mybatis-generator插件
参考：https://blog.csdn.net/u012825737/article/details/79117540
配置好后，右键generatorConfiguration.xml即可生成文件
先来一波完整的配置
3、框架搭建的配置文件
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gx</groupId>
<artifactId>more-datasource</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<!-- maven配置 -->
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>utf-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
<!-- 版本配置 -->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- jar版本号 -->
<spring.version>4.3.14.RELEASE</spring.version> <!-- Spring版本号 -->
<freemarker.version>2.3.23</freemarker.version>
<aopalliance.version>1.0</aopalliance.version> <!-- aopalliance版本号 -->
<aspectjweaver.version>1.8.10</aspectjweaver.version> <!-- aspectjweaver版本号 -->
<mybatis.version>3.4.1</mybatis.version> <!-- mybatis版本号 -->
<tk.mybatis.mapper.version>3.3.9</tk.mybatis.mapper.version> <!-- tk.mybatis.mapper版本号 -->
<mybatis-spring.version>1.3.1</mybatis-spring.version>
<mysql-connector-java.version>5.1.38</mysql-connector-java.version>
<druid.version>1.1.10</druid.version> <!-- druid版本号 -->
<jackson-databind.version>2.9.5</jackson-databind.version>
<servlet-api.version>2.5</servlet-api.version>
<jsp-api.version>2.2</jsp-api.version>
<jstl.version>1.2</jstl.version>
<taglibs.standard.version>1.1.2</taglibs.standard.version>
<commons-fileupload.version>1.3.1</commons-fileupload.version>
<slf4j-log4j12.version>1.7.25</slf4j-log4j12.version>
<poi-ooxml.version>3.15-beta2</poi-ooxml.version>
<shiro.version>1.3.2</shiro.version>
<junit.version>4.12</junit.version>
<guava.version>26.0-jre</guava.version> <!-- guava工具集 -->
<spring-data-redis.vaersion>1.7.0.RELEASE</spring-data-redis.vaersion> <!-- redis -->
<jedis.vaersion>2.8.0</jedis.vaersion> <!-- redis -->
<commons-pool2.vaersion>2.4.2</commons-pool2.vaersion> <!-- redis -->
</properties>
<dependencies>
<!-- 测试包 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!--spring-mvc依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!--事务管理依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!--使用aop方式管理和控制事务 -->
<dependency>
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>${aopalliance.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectjweaver.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>${freemarker.version}</version>
</dependency>
<!--mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!--mybatis通用mapper -->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper</artifactId>
<version>${tk.mybatis.mapper.version}</version>
</dependency>
<!--spring-mybatis[把mybatis的mapper接口生成代理实现类交给spring容器统一管理] -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<!--数据库连接驱动和数据库连接池druid -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql-connector-java.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!--json -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson-databind.version}</version>
</dependency>
<!--web -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- jsp中使用jstl标签 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>${taglibs.standard.version}</version>
</dependency>
<!-- springmvc 上传文件依赖 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- slf4j日志包 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j-log4j12.version}</version>
</dependency>
<!-- poi-ooxml自动引入操作xlsx文件所用到的其他包 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>${poi-ooxml.version}</version>
</dependency>
<!-- shiro安全验证框架 -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>${shiro.version}</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-ehcache</artifactId>
<version>${shiro.version}</version>
</dependency>
<!-- guava工具集 -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<!-- redis -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>${spring-data-redis.vaersion}</version>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${jedis.vaersion}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
<version>${commons-pool2.vaersion}</version>
</dependency>
</dependencies>
</project>generatorConfiguration.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<!-- 配置生成器 -->
<generatorConfiguration>
<!-- 引入配置文件 -->
<properties resource="mybatisGeneratorinit.properties"/>
<!-- 一个数据库一个context -->
<!--defaultModelType="flat" 大数据字段，不分表 -->
<context id="MysqlTables" targetRuntime="MyBatis3Simple" defaultModelType="flat">
<!-- 自动识别数据库关键字，默认false，如果设置为true，根据SqlReservedWords中定义的关键字列表；
一般保留默认值，遇到数据库关键字（Java关键字），使用columnOverride覆盖 -->
<property name="autoDelimitKeywords" value="true" />
<!-- 生成的Java文件的编码 -->
<property name="javaFileEncoding" value="utf-8" />
<!-- beginningDelimiter和endingDelimiter：指明数据库的用于标记数据库对象名的符号，比如ORACLE就是双引号，MYSQL默认是`反引号； -->
<property name="beginningDelimiter" value="`" />
<property name="endingDelimiter" value="`" />
<!-- 格式化java代码 -->
<property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
<!-- 格式化XML代码 -->
<property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/>
<!-- 添加序列化 -->
<plugin type="org.mybatis.generator.plugins.SerializablePlugin" />
<!-- 添加toString方法 -->
<plugin type="org.mybatis.generator.plugins.ToStringPlugin" />
<!-- 通用mapper插件 -->
<plugin type="tk.mybatis.mapper.generator.MapperPlugin">
<property name="mappers" value="${mapper.Mapper}"/><!-- Mapper继承接口 -->
</plugin>
<!-- 注释 -->
<commentGenerator >
<property name="suppressAllComments" value="false"/><!-- 是否取消注释 -->
<property name="suppressDate" value="true" /> <!-- 是否生成注释带时间戳-->
</commentGenerator>
<!-- jdbc连接 -->
<jdbcConnection driverClass="${jdbc_driver}" connectionURL="${jdbc_url}" userId="${jdbc_user}" password="${jdbc_password}" />
<!-- 类型转换 -->
<javaTypeResolver>
<!-- 是否使用bigDecimal， false可自动转化以下类型（Long, Integer, Short, etc.） -->
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!-- 生成实体类地址 -->
<javaModelGenerator targetPackage="${mapper.entityPackage}" targetProject="${project}" >
<property name="constructorBased" value="true" />
<property name="enableSubPackages" value="true"/>
<property name="trimStrings" value="true"/>
<property name="rootClass" value="${mapper.entity}" /><!-- 继承entity -->
</javaModelGenerator>
<!-- 生成mapper.xml文件 -->
<sqlMapGenerator targetPackage="${mapper.xmlPackage}" targetProject="${project}" >
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!-- 生成mapper.xml对应client，也就是接口mapper -->
<javaClientGenerator targetPackage="${mapper.mapperPackage}" targetProject="${project}" type="XMLMAPPER" >
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<!-- table可以有多个,每个数据库中的表都可以写一个table，tableName表示要匹配的数据库表,也可以在tableName属性中通过使用%通配符来匹配所有数据库表,只有匹配的表才会自动生成文件 -->
<table tableName="tb_book" domainObjectName="Book">
<!-- 数据库表主键 -->
<generatedKey column="book_id" sqlStatement="Mysql" identity="true" />
<columnOverride column="book_price" javaType="java.lang.Double"></columnOverride>
</table>
</context>
</generatorConfiguration>
mybatisGeneratorinit.properties
# Mybatis Generator configuration
# 数据库连接配置
jdbc_driver=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/testdb_master?useSSL=true&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
jdbc_user=root
jdbc_password=root
# 项目根路径
project=more-datasource/src/main/java
# 生成实体类位置
mapper.entityPackage=com.gx.entity
# 生成实体类继承的类
mapper.entity=com.gx.common.base.entity.BaseEntity
# 生成接口mapper位置
mapper.mapperPackage=com.gx.mapper
# 指定生成的Mapper文件继承的接口
mapper.Mapper=com.gx.common.base.mapper.BaseMapper
# mapper-xml文件的位置
mapper.xmlPackage=com.gx.mapper.xmlspring-mvc.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--扫描以下的实例交给springMvc容器管理-->
<context:component-scan base-package="com.gx.controller"/>
<!--开启mvc所有注解配置-->
<mvc:annotation-driven />
<!--配置jsp视图解析器-->
<bean id="viewResoler" class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>spring-mybatis.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!--把tk.mybatis中mapper接口生成的代理对象交给spring容器管理-->
<bean id="mapperScanner" class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
<!--扫描需要生成代理对象所有接口的包路径-->
<property name="basePackage" value="com.gx.mapper"/>
</bean>
<!--把mybatis整合到spring容器管理-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--使用数据源dataSource-->
<property name="dataSource" ref="dataSource"/>
<!--把mybatis所有mapper映射配置文件整合到sqlSessionFactory对象中-->
<property name="mapperLocations" value="classpath:com/gx/mapper/xml/*Mapper.xml"/>
<!--mybatis配置-->
<property name="configLocation" value="classpath:mybatis/mybatis.cofig.xml" />
<!--插件配置-->
<!--<property name="plugins">
<props>
<prop key=""/>
</props>
</property>-->
</bean>
</beans>spring-service.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: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">
<!--扫描以下的交给spring容器管理-->
<context:component-scan base-package="com.gx.common.datasource,com.gx.common.util,com.gx.service"/>
</beans>spring-tx.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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
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/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!--配置事务传播性 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!--service命名规范 -->
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="modify*" propagation="REQUIRED" />
<tx:method name="get*" propagation="SUPPORTS" />
<tx:method name="find*" propagation="SUPPORTS" />
<tx:method name="list*" propagation="SUPPORTS" />
<tx:method name="*" read-only="true" propagation="SUPPORTS"
rollback-for="com.gx.common.base.exception.BaseBusinessException" />
</tx:attributes>
</tx:advice>
<!--组装事务传播和切入点 -->
<aop:config>
<!--impl包下的所有类所有方法 -->
<aop:pointcut id="pcut" expression="execution(* com.gx.service.impl.*.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="pcut" />
</aop:config>
<!-- 启动@AspectJ支持(必须否则不生效) -->
<aop:aspectj-autoproxy />
<!-- 注解驱动的声明式事务管理(启用注解事务) -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>spring-datasource.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: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">
<!--加载数据源配置文件,ignore-unresolvable配置多处properties必须加-->
<context:property-placeholder ignore-unresolvable="true" location="classpath:datasource/datasource.properties" />
<!--Master数据源-->
<bean id="dataSourceMaster" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.master.driver_class}"/>
<property name="url" value="${jdbc.master.url}"/>
<property name="username" value="${jdbc.master.username}"/>
<property name="password" value="${jdbc.master.password}"/>
<property name="initialSize" value="${initialSize}"/>
<property name="maxActive" value="${maxActive}"/>
<property name="minIdle" value="${minIdle}"/>
<property name="maxWait" value="${maxWait}"/>
<property name="testOnBorrow" value="${testOnBorrow}"/>
</bean>
<!--Slave数据源-->
<bean id="dataSourceSlave" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.slave.driver_class}"/>
<property name="url" value="${jdbc.slave.url}"/>
<property name="username" value="${jdbc.slave.username}"/>
<property name="password" value="${jdbc.slave.password}"/>
<property name="initialSize" value="${initialSize}"/>
<property name="maxActive" value="${maxActive}"/>
<property name="minIdle" value="${minIdle}"/>
<property name="maxWait" value="${maxWait}"/>
<property name="testOnBorrow" value="${testOnBorrow}"/>
</bean>
<!-- 配置多数据源 -->
<bean id="dataSource" class="com.gx.common.datasource.ThreadLocalRountingDataSource">
<property name="defaultTargetDataSource" ref="dataSourceMaster" />
<property name="targetDataSources">
<map key-type="com.gx.common.datasource.DataSources">
<!-- 配置多个dataSource -->
<entry key="MASTER" value-ref="dataSourceMaster"/>
<entry key="SLAVE" value-ref="dataSourceSlave"/>
</map>
</property>
</bean>
</beans>spring-redis.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!--加载数据源配置文件,ignore-unresolvable配置多处properties-->
<context:property-placeholder ignore-unresolvable="true" location="classpath:datasource/redis.properties" />
<!-- Redis 配置 -->
<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
<property name="maxTotal" value="${redis.maxTotal}" />
<property name="maxIdle" value="${redis.maxIdle}" />
<property name="maxWaitMillis" value="${redis.maxWaitMillis}" />
<property name="testOnBorrow" value="true" />
</bean>
<!-- redis单节点数据库连接配置 -->
<bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
<property name="hostName" value="${redis.host}" />
<property name="port" value="${redis.port}" />
<property name="password" value="${redis.password}" />
<property name="poolConfig" ref="jedisPoolConfig" />
</bean>
<!-- redisTemplate配置，redisTemplate是对Jedis的对redis操作的扩展，有更多的操作，封装使操作更便捷 -->
<bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
<property name="connectionFactory" ref="jedisConnectionFactory" />
<!-- 键格式化字符串 -->
<property name="keySerializer">
<bean class="org.springframework.data.redis.serializer.StringRedisSerializer"></bean>
</property>
<!-- 值自动格式化json -->
<property name="valueSerializer">
<bean class="org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer" ></bean>
</property>
<!-- 键格式化字符串 -->
<property name="hashKeySerializer">
<bean class="org.springframework.data.redis.serializer.StringRedisSerializer"></bean>
</property>
<!-- 值自动格式化json -->
<property name="hashValueSerializer">
<bean class="org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer" ></bean>
</property>
</bean>
<!-- 配置RedisCacheManager -->
<bean id="redisCacheManager" class="org.springframework.data.redis.cache.RedisCacheManager">
<constructor-arg index="0" name="redisOperations" ref="redisTemplate" />
<!-- 默认失效时间(秒) -->
<property name="defaultExpiration" value="${redis.expiration}" />
</bean>
</beans>spring-context.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!--用于管理spring容器相关配置文件(有顺序)-->
<import resource="spring-datasource.xml" />
<import resource="spring-mybatis.xml" />
<import resource="spring-service.xml" />
<import resource="spring-redis.xml" />
<import resource="spring-tx.xml" />
</beans>datasource.properties
# 测试环境
# 连接数据库(master为insert,update,delete或者实时性要求很高的select语句操作数据库)
jdbc.master.driver_class = com.mysql.jdbc.Driver
jdbc.master.url = jdbc:mysql://127.0.0.1:3306/testdb_master?useSSL=true&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
jdbc.master.username = root
jdbc.master.password = root
# 连接数据库(slave为实时性低的select语句操作数据库)
jdbc.slave.driver_class = com.mysql.jdbc.Driver
jdbc.slave.url = jdbc:mysql://127.0.0.1:3306/testdb_slave?useSSL=true&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
jdbc.slave.username = root
jdbc.slave.password = root
# 配置连接池
# 初始化连接数
initialSize = 4
# 最大连接数
maxActive = 20
# 最小连接数
minIdle = 2
# 等待时间
maxWait = 2000
# 检查连接是否有效
testOnBorrow = trueredis.properties
#redis的服务器地址
redis.host=127.0.0.1
#redis的服务端口
redis.port=6379
#密码
redis.password=123
#链接数据库
redis.default.db=0
#客户端超时时间单位是毫秒
redis.timeout=5000
#最大连接数
redis.maxTotal=300
#最大空闲数
redis.maxIdle=100
#最大建立连接等待时间
redis.maxWaitMillis=1000
#默认数据失效时间600秒
redis.expiration=600log4j.properties
# 使用slf4j配置log4j
### 设置根记录器 ###
# ALL、TRACE(跟踪)、DEBUG(调试)、INFO(信息)、WARNING(警告)、ERROR(错误)、FITAL(致命)、OFF等几个级别，级别依次升高。
# 级别高的Level会屏蔽级别低的信息。
# stdout：标准输出；Logger打印需要：D,E
# debug,stdout,D,E
log4j.rootLogger = info,stdout,D,E
# %d 产生日志的时间
# %t 产生日志所处的线程名称
# %-5p 输出日志的级别，将占5位字符，不足5位用空格填补，-指的是在右边补齐，没有则在左边
# %c 输出日志的包以及类的全名
# %m 附加的信息
# %n 换行
### 输出信息到控制台 ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### 按文件大小和按天生成日记文件 ###
### 输出 DEBUG 级别以上的日志到=D://logs/redis-demo/log.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = D://logs/redis-demo/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
### 输出 ERROR 级别以上的日志到=D://logs/redis-demo/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =D://logs/redis-demo/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
mybatis.cofig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<!-- 打印查询语句，STDOUT_LOGGING：标准输出日志 -->
<setting name="logImpl" value="STDOUT_LOGGING" />
<!-- 开启驼峰映射：就是数据库字段名称类似user_name的需要驼峰映射 -->
<setting name="mapUnderscoreToCamelCase" value="true"/>
</settings>
</configuration>代码块(这个内容我就贴主要的实现吧，单单配置博客就长成这样，无奈...所以想要完整的话还是下载demo吧，没积分留个邮箱)
1、RedisCache.java
package com.gx.common.util;
import java.util.concurrent.TimeUnit;
import javax.annotation.Resource;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
/**
* @ClassName: RedisCache
* @Description: RedisCache简易工具类注入
* @author zhoujie
* @date 2018年12月12日 下午4:45:16
* @version V1.0
*/
@Component("redisCache") //注册组件
public class RedisCache {
@Resource
private RedisTemplate<String, Object> redisTemplate;
/**
* 将value对象写入缓存
* @param key
* @param value
* @param time 失效时间(秒)
*/
public void set(String key,Object value,int loseTime){
loseTime = loseTime>0?loseTime:600; //设置默认时间600秒
redisTemplate.opsForValue().set(key, value, loseTime, TimeUnit.SECONDS);
}
/**
* 获取缓存<br>
* @param key
* @return
*/
public Object get(String key){
return redisTemplate.opsForValue().get(key);
}
/**
* @Title: del
* @Description: 根据key删除缓存数据
* @param @param key
* @param @throws Exception
* @return void
* @throws
*/
public void del(String key) throws Exception {
redisTemplate.delete(key);
}
}
DataSourceInterceptor.java
package com.gx.common.datasource;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
//AOP切面配置数据源
@Aspect // for aop
@Component // for auto scan
@Order(0) // execute before @Transactional
public class DataSourceInterceptor {
//切换数据源
@Pointcut("execution(* com.gx.service.impl.*.get*(..))")
public void dataSourceSlave(){};
@Before("dataSourceSlave()")
public void dataSourceSlave(JoinPoint jp) {
System.out.println("get*切换数据源Slave");
DataSourceTypeManager.set(DataSources.SLAVE);
}
//其他更多设置数据源 ... ...
//切换数据源2
@Pointcut("execution(* com.gx.service.impl.*.addBookSlave(..))")
public void addBookSlave(){};
@Before("addBookSlave()")
public void addBookSlave(JoinPoint jp) {
System.out.println("addBookSlave切换数据源Slave");
DataSourceTypeManager.set(DataSources.SLAVE);
}
}
DataSources.java
package com.gx.common.datasource;
/**
* 数据源的类别：master/slave
*/
public enum DataSources {
MASTER, SLAVE
}
DataSourceTypeManager.java
package com.gx.common.datasource;
public class DataSourceTypeManager {
private static final ThreadLocal<DataSources> dataSourceTypes = new ThreadLocal<DataSources>() {
@Override
protected DataSources initialValue() {
return DataSources.MASTER;
}
};
public static DataSources get() {
return dataSourceTypes.get();
}
public static void set(DataSources dataSourceType) {
dataSourceTypes.set(dataSourceType);
}
public static void reset() {
dataSourceTypes.set(DataSources.MASTER);
}
}
ThreadLocalRountingDataSource.java
package com.gx.common.datasource;
import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;
public class ThreadLocalRountingDataSource extends AbstractRoutingDataSource {
@Override
protected Object determineCurrentLookupKey() {
System.out.println("数据源："+DataSourceTypeManager.get());
return DataSourceTypeManager.get();
}
}BookController.java
package com.gx.controller;
import com.gx.entity.Book;
import com.gx.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
@Controller
@RequestMapping("/book")
public class BookController {
@Autowired
private BookService bookService;
@RequestMapping("/list")
@ResponseBody
public List<Book> getBooks(){
return bookService.getBooks();
}
@RequestMapping("/add")
@ResponseBody
public Object addBook(){
return bookService.addBook();
}
@RequestMapping("/add2")
@ResponseBody
public Object addBookSlave(){
return bookService.addBookSlave();
}
}
BookService.java
package com.gx.service;
import com.gx.entity.Book;
import java.util.List;
public interface BookService {
List<Book> getBooks();
int addBook();
int addBookSlave();
}
BookServiceImpl.java
package com.gx.service.impl;
import com.gx.common.util.RedisCache;
import com.gx.entity.Book;
import com.gx.mapper.BookMapper;
import com.gx.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.Date;
import java.util.List;
import javax.annotation.Resource;
@Service
public class BookServiceImpl implements BookService {
@Autowired
private BookMapper bookMapper;
@Resource
private RedisCache redisCache; //redis注入，使用就和上面的一样
//get开头的查询slave数据库
@SuppressWarnings("unchecked")
@Override
public List<Book> getBooks() {
//使用redis，即先到redis中查找是否存在数据，不存在数据再到数据库查询
List<Book> list = (List<Book>) redisCache.get("list") ;//获取redis缓存
if(list == null){
list = bookMapper.selectAll();
redisCache.set("list", list, 600); //设置redis缓存
}
return list;
}
//新增到master数据库
@Override
public int addBook() {
Book book = new Book();
book.setBookDate(new Date());
book.setBookName("哈哈1");
book.setBookPrice(30.1);
return bookMapper.insertSelective(book);
}
//新增到Slave数据库
@Override
public int addBookSlave() {
Book book = new Book();
book.setBookDate(new Date());
book.setBookName("哈哈2");
book.setBookPrice(30.2);
return bookMapper.insertSelective(book);
}
}
其余的就部分是生成的，另外的话不重要了
ok，大体搭建成。。
测试
http://localhost:8080/more-datasource/book/list
http://localhost:8080/more-datasource/book/add
http://localhost:8080/more-datasource/book/add2
效果
redis使用客户端工具查看
所有切换数据源配置在DataSourceInterceptor.java这个文件里动态配置！！！
整理不少时间。。。
下载整合demo
忘记把客户端工具弄进来了。。