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.conf

2、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 generatorConfigurationPUBLIC "-//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.xml

spring-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 = true

redis.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=600

log4j.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 {@Resourceprivate 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>() {@Overrideprotected 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 {@Overrideprotected 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 {@Autowiredprivate BookService bookService;@RequestMapping("/list")@ResponseBodypublic List<Book> getBooks(){return bookService.getBooks();}@RequestMapping("/add")@ResponseBodypublic Object addBook(){return bookService.addBook();}@RequestMapping("/add2")@ResponseBodypublic 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 {@Autowiredprivate BookMapper bookMapper;@Resourceprivate 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")@Overridepublic 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@Overridepublic 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@Overridepublic 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。。

redis客户端工具