Spring+MyBatis双数据库配置
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Spring+MyBatis双数据库配置
最近项目中遇到要调用其他数据库的情况，本来只使用一个MySQL数据库，但随着项目内容越来越多，逻辑越来越复杂。原来一个数据库已经不够用了，需要分库分表，所以决定扩充数据库，正好Spring可以灵活的扩充数据库。下面简单写一篇博文，记录下多数据库配置的过程。
1.项目结构如下图：
其中mkhl和ulab分别对应两个数据库模块，同时也对应两个不同的功能模块。
2.整个Maven项目的配置文件：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>ULAB_UsersProvider</groupId><artifactId>ULAB_UsersProvider</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>ULAB_UsersProvider</name><url>http://maven.apache.org</url><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><spring.version>4.0.0.RELEASE</spring.version><jackson.version>2.5.0</jackson.version></properties><dependencies><!-- junit --><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.8.1</version><scope>test</scope></dependency><dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId><version>1.1</version></dependency><dependency><groupId>commons-lang</groupId><artifactId>commons-lang</artifactId><version>2.6</version></dependency><!-- spring --><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context-support</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-orm</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-oxm</artifactId><version>${spring.version}</version></dependency><!-- dubbo --><dependency><groupId>com.alibaba</groupId><artifactId>dubbo</artifactId><version>2.5.3</version></dependency><!-- zookeeper --><dependency><groupId>org.apache.zookeeper</groupId><artifactId>zookeeper</artifactId><version>3.4.6</version></dependency><dependency><groupId>com.github.sgroschupf</groupId><artifactId>zkclient</artifactId><version>0.1</version></dependency><!-- mysql连接 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.34</version></dependency><dependency><groupId>commons-pool</groupId><artifactId>commons-pool</artifactId><version>1.6</version></dependency><dependency><groupId>commons-dbcp</groupId><artifactId>commons-dbcp</artifactId><version>1.4</version></dependency><!-- oracle连接 --><!-- <dependency><groupId>com.oracle</groupId><artifactId>ojdbc14</artifactId><version>10.2.0.1.0</version></dependency> --> <!-- SQL Server连接 --> <dependency> <groupId>com.microsoft.sqlserver</groupId> <artifactId>sqljdbc4</artifactId> <version>4.0</version> </dependency><!-- 数据源 --><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.12</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.4</version></dependency><!-- ehcache --><dependency><groupId>net.sf.ehcache</groupId><artifactId>ehcache-core</artifactId><version>2.6.10</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-ehcache</artifactId><version>1.0.0</version></dependency><!-- log4j --><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency><dependency><groupId>com.googlecode.log4jdbc</groupId><artifactId>log4jdbc</artifactId><version>1.2</version><scope>runtime</scope></dependency><dependency><groupId>net.bull.javamelody</groupId><artifactId>javamelody-core</artifactId><version>1.50.0</version></dependency><!-- servlet --><!-- <dependency><groupId>javax.servlet</groupId><artifactId>servlet-api</artifactId><version>2.5</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency> --><!-- json --><dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.9.13</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.3</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><!-- mybatis核心包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.2.4</version></dependency><!-- mybatis/spring包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.2</version></dependency><!-- 文件上传 --><!-- <dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2.2</version></dependency><dependency><groupId>jexcelapi</groupId><artifactId>jxl</artifactId><version>2.4.2</version></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>3.9</version></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>3.9</version></dependency> --><!-- <dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>2.0.0</version><type>jar</type></dependency> <dependency><groupId>javax.xml.rpc</groupId><artifactId>javax.xml.rpc-api</artifactId><version>1.1.1</version></dependency><dependency><groupId>wsdl4j</groupId><artifactId>wsdl4j</artifactId><version>1.6.3</version></dependency><dependency><groupId>org.codehaus.xfire</groupId><artifactId>xfire-all</artifactId><version>1.2.6</version></dependency> --><!-- axis2 --><!-- <dependency><groupId>org.apache.axis2</groupId><artifactId>axis2</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-aar-maven-plugin</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-adb</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-adb-codegen</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-ant-plugin</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-clustering</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-codegen</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-integration</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-java2wsdl</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-java2wsdl-maven-plugin</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-jaxbri</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-jaxws</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-jaxws-integration</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-jibx</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-json</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-kernel</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-mar-maven-plugin</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-metadata</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-mtompolicy</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-repo-maven-plugin</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-resource-bundle</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-saaj</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-soapmonitor-servlet</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-spring</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-transport-http</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-transport-local</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-wsdl2code-maven-plugin</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>axis2-xmlbeans</artifactId><version>1.6.2</version></dependency><dependency><groupId>org.apache.axis2</groupId><artifactId>org.apache.axis2.osgi</artifactId><version>1.6.2</version></dependency> --><!-- Mybatis_pagehelper --><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper</artifactId><version>4.0.1</version></dependency></dependencies><build><finalName>ULAB_UsersProvider1.0</finalName><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.1</version><configuration><source>1.7</source><target>1.7</target></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-shade-plugin</artifactId><version>1.4</version><executions><execution><phase>package</phase><goals><goal>shade</goal></goals><configuration><filters><filter><artifact>*:*</artifact><excludes><exclude>META-INF/*.SF</exclude><exclude>META-INF/*.DSA</exclude><exclude>META-INF/*.RSA</exclude></excludes></filter></filters><transformers><transformerimplementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"><mainClass>com.ouc.ulab.main.UsersProvider</mainClass></transformer><transformerimplementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"><resource>META-INF/spring.handlers</resource></transformer><transformerimplementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"><resource>META-INF/spring.schemas</resource></transformer></transformers></configuration></execution></executions></plugin></plugins></build></project>3.接下来介绍与Spring和MyBatis相关的配置文件：
1）数据库配置文件：jdbc.properties
#jdbc.driverClassName=oracle.jdbc.driver.OracleDriver#jdbc.url=jdbc\:oracle\:thin\:@192.168.151.239\:1521\:orcl#jdbc.username=ULab#jdbc.password=123456#jdbc.validationQuery=SELECT 1 FROM DUALjdbc.B.driverClassName=com.mysql.jdbc.Driverjdbc.B.url=jdbc\:mysql\://110.126.70.48\:3310/ulab?useUnicode\=true&characterEncoding\=UTF-8jdbc.B.username=mkhljdbc.B.password=123456jdbc.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriverjdbc.url=jdbc\:sqlserver\://110.135.60.233\:1433;DatabaseName=OUCJiancejdbc.username=OUCUserjdbc.password=OUC,789jdbc.initialSize=1jdbc.maxActive=20jdbc.minIdle=0jdbc.maxWait=60000jdbc.validationQuery=SELECT 1jdbc.testOnBorrow=falsejdbc.testOnReturn=falsejdbc.testWhileIdle=truejdbc.timeBetweenEvictionRunsMillis=60000jdbc.minEvictableIdleTimeMillis=25200000jdbc.removeAbandoned=truejdbc.removeAbandonedTimeout=1800jdbc.logAbandoned=truejdbc.filters=stat
2）ehcache缓存配置：ehcache.xml
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="ehcache.xsd" updateCheck="true" monitoring="autodetect" dynamicConfig="true"> <diskStore path="java.io.tmpdir" /> <defaultCache maxElementsInMemory="10000" eternal="false" timeToIdleSeconds="120" timeToLiveSeconds="120" overflowToDisk="true" diskSpoolBufferSizeMB="30" maxElementsOnDisk="10000000" diskExpiryThreadIntervalSeconds="120" memoryStoreEvictionPolicy="LRU" /> <cache name="mavenCache" maxElementsInMemory="10000" eternal="false" timeToIdleSeconds="120" timeToLiveSeconds="120" overflowToDisk="true" diskSpoolBufferSizeMB="30" maxElementsOnDisk="10000000" diskExpiryThreadIntervalSeconds="120" memoryStoreEvictionPolicy="LRU" /> </ehcache>
3）日志配置：log4j.properties
log4j.rootLogger=INFO,stdout,logfilelog4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.logfile.File=D:/log4j/U-LAB/usersProvide_loglog4j.appender.logfile.layout=org.apache.log4j.PatternLayoutlog4j.appender.logfile.DatePattern='_'yyyy-MM-dd'.log'log4j.appender.logfile.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} %-5p [%t] %c.%M(%L) - %m%n log4j.logger.com.ibatis=debuglog4j.logger.com.ibatis.common.jdbc.SimpleDataSource=debuglog4j.logger.com.ibatis.common.jdbc.ScriptRunner=debuglog4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=debuglog4j.logger.java.sql.Connection=debuglog4j.logger.java.sql.Statement=debuglog4j.logger.java.sql.PreparedStatement=debug,stdoutlog4j.logger.jdbc.sqlonly=OFFlog4j.logger.jdbc.sqltiming=OFFlog4j.logger.jdbc.audit=OFFlog4j.logger.jdbc.resultset=OFFlog4j.logger.jdbc.connection=OFF4）mybatis基础配置：mybatis-configure.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> <setting name="cacheEnabled" value="true" /> <setting name="jdbcTypeForNull" value="NULL" /> </settings> </configuration>
5）数据库连接池Druid配置：spring-druid.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:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:cache="http://www.springframework.org/schema/cache" xmlns:task="http://www.springframework.org/schema/task" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <!-- 配置druid监控spring jdbc --><bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor" /><bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype"><property name="patterns"><list><value>com.ouc.ulab.service.*</value><value>com.ouc.mkhl.service.*</value></list></property></bean><aop:config><aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" /></aop:config></beans>
6）MyBatis数据库相关的配置，双数据库配置主要内容在这里：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" xmlns:p="http://www.springframework.org/schema/p"xmlns:aop="http://www.springframework.org/schema/aop" xmlns:cache="http://www.springframework.org/schema/cache"xmlns:task="http://www.springframework.org/schema/task" xmlns:context="http://www.springframework.org/schema/context"xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"><!-- 配置数据源1:SQLServer --><bean name="dataSource1" class="com.alibaba.druid.pool.DruidDataSource"init-method="init" destroy-method="close"><property name="driverClassName" value="${jdbc.driverClassName}" /><property name="url" value="${jdbc.url}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><!-- 初始化连接大小 --><property name="initialSize" value="${jdbc.initialSize}" /><!-- 连接池最大使用连接数量 --><property name="maxActive" value="${jdbc.maxActive}" /><!-- 连接池最小空闲 --><property name="minIdle" value="${jdbc.minIdle}" /><!-- 获取连接最大等待时间 --><property name="maxWait" value="${jdbc.maxWait}" /><property name="validationQuery" value="${jdbc.validationQuery}" /><property name="testOnBorrow" value="${jdbc.testOnBorrow}" /><property name="testOnReturn" value="${jdbc.testOnReturn}" /><property name="testWhileIdle" value="${jdbc.testWhileIdle}" /><!-- 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="${jdbc.timeBetweenEvictionRunsMillis}" /><!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --><property name="minEvictableIdleTimeMillis" value="${jdbc.minEvictableIdleTimeMillis}" /><!-- 打开removeAbandoned功能 --><property name="removeAbandoned" value="${jdbc.removeAbandoned}" /><!-- 1800秒，也就是30分钟 --><property name="removeAbandonedTimeout" value="${jdbc.removeAbandonedTimeout}" /><!-- 关闭abanded连接时输出错误日志 --><property name="logAbandoned" value="${jdbc.logAbandoned}" /><!-- 监控数据库 --><property name="filters" value="${jdbc.filters}" /></bean> <!-- 配置数据源2:MySQL --><bean name="dataSource2" class="com.alibaba.druid.pool.DruidDataSource"init-method="init" destroy-method="close"><property name="driverClassName" value="${jdbc.B.driverClassName}" /><property name="url" value="${jdbc.B.url}" /><property name="username" value="${jdbc.B.username}" /><property name="password" value="${jdbc.B.password}" /><!-- 初始化连接大小 --><property name="initialSize" value="${jdbc.initialSize}" /><!-- 连接池最大使用连接数量 --><property name="maxActive" value="${jdbc.maxActive}" /><!-- 连接池最小空闲 --><property name="minIdle" value="${jdbc.minIdle}" /><!-- 获取连接最大等待时间 --><property name="maxWait" value="${jdbc.maxWait}" /><property name="validationQuery" value="${jdbc.validationQuery}" /><property name="testOnBorrow" value="${jdbc.testOnBorrow}" /><property name="testOnReturn" value="${jdbc.testOnReturn}" /><property name="testWhileIdle" value="${jdbc.testWhileIdle}" /><!-- 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="${jdbc.timeBetweenEvictionRunsMillis}" /><!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --><property name="minEvictableIdleTimeMillis" value="${jdbc.minEvictableIdleTimeMillis}" /><!-- 打开removeAbandoned功能 --><property name="removeAbandoned" value="${jdbc.removeAbandoned}" /><!-- 1800秒，也就是30分钟 --><property name="removeAbandonedTimeout" value="${jdbc.removeAbandonedTimeout}" /><!-- 关闭abanded连接时输出错误日志 --><property name="logAbandoned" value="${jdbc.logAbandoned}" /><!-- 监控数据库 --><property name="filters" value="${jdbc.filters}" /></bean><!-- myBatis文件 --><bean id="sqlSessionFactory1" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource1" /><property name="mapperLocations" value="classpath:com/ouc/ulab/mapping/*.xml" /><property name="typeAliasesPackage" value="com.ouc.ulab.model" /><property name="plugins"><array><bean class="com.github.pagehelper.PageHelper"><property name="properties"><value>dialect=sqlserver</value></property></bean></array></property><property name="configLocation" value="classpath:mybatis-configure.xml" /></bean> <bean id="sqlSessionFactory2" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource2" /><property name="mapperLocations" value="classpath:com/ouc/mkhl/mapping/*.xml" /><property name="typeAliasesPackage" value="com.ouc.mkhl.model" /><property name="configLocation" value="classpath:mybatis-configure.xml" /></bean><bean id = "mapperScannerConfigurer1" class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.ouc.ulab.dao" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory1" /></bean> <bean id = "mapperScannerConfigurer2" class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.ouc.mkhl.dao" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory2" /></bean><!-- 事务管理 --><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource1" /></bean></beans>7）Spring中Bean的注解扫描识别配置：spring.xml，此处为了发布Dubbo服务。
<?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" xmlns:context="http://www.springframework.org/schema/context"xmlns:util="http://www.springframework.org/schema/util"xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <aop:aspectj-autoproxy/> <!-- 自动扫描含有@Service将其注入为bean --><context:component-scan base-package="com.ouc.ulab.service"/><context:component-scan base-package="com.ouc.ulab.service.impl"/><context:component-scan base-package="com.ouc.mkhl.service"/><context:component-scan base-package="com.ouc.mkhl.service.impl"/><context:annotation-config /><!--引入配置属性文件 --><context:property-placeholder location="classpath:jdbc.properties"/></beans>
8）发布Dubbo接口配置：spring-dubbo.xml，此处配置注册中心地址，发布接口等内容。
<?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:dubbo="http://code.alibabatech.com/schema/dubbo"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd"><!-- 提供方应用信息，用于计算依赖关系 --><dubbo:application name="ULAB_DubboProvider" /><!-- 使用multicast广播注册中心暴露服务地址 <dubbo:registry address="multicast://224.5.6.7:1234" /> --><dubbo:registry id="localUsersRegistry" address="zookeeper://127.0.0.1:2181"></dubbo:registry> <!-- 用dubbo协议在21000端口暴露服务 --><dubbo:protocol name="dubbo" port="21000" /><!-- 声明需要暴露的服务接口 --><dubbo:service interface="com.ouc.ulab.service.VSupplierUsersService" ref="vSupplierUsersService" registry="localUsersRegistry" /><dubbo:service interface="com.ouc.mkhl.service.UsersEvaluateService" ref="usersEvaluateService" registry="localUsersRegistry" /></beans>
4.以下以ulab模块为例，介绍相关的功能包：dao，model，mapping，service，service.impl，main。
1）model数据库表实体类包：VSupplyUser类
package com.ouc.ulab.model;import java.io.Serializable;public class VSupplyUser implements Serializable { private static final long serialVersionUID = 12L; private String supplycode; private String supplyname; private String supplypass; public String getSupplycode() { return supplycode; } public void setSupplycode(String supplycode) { this.supplycode = supplycode == null ? null : supplycode.trim(); } public String getSupplyname() { return supplyname; } public void setSupplyname(String supplyname) { this.supplyname = supplyname == null ? null : supplyname.trim(); } public String getSupplypass() { return supplypass; } public void setSupplypass(String supplypass) { this.supplypass = supplypass == null ? null : supplypass.trim(); }}2）数据接口Dao包：VSupplyUserMapper
package com.ouc.ulab.dao;import java.util.List;import com.ouc.ulab.model.VSupplyUser;public interface VSupplyUserMapper { int insert(VSupplyUser record); int insertSelective(VSupplyUser record); public VSupplyUser getVSupplyUserByCode(String supplycode); public List <VSupplyUser> getAllVSupplyUser(); }3）SQL语句配置包：VSupplyUserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" ><mapper namespace="com.ouc.ulab.dao.VSupplyUserMapper" > <resultMap id="BaseResultMap" type="VSupplyUser" > <result column="SupplyCode" property="supplycode" jdbcType="NVARCHAR" /> <result column="SupplyName" property="supplyname" jdbcType="NVARCHAR" /> <result column="SupplyPass" property="supplypass" jdbcType="NVARCHAR" /> </resultMap> <select id="getVSupplyUserByCode" resultType="VSupplyUser" parameterType="java.lang.String" > select * from V_SupplyUser where SupplyCode = #{#{supplycode,jdbcType=NVARCHAR} </select> <select id="getAllVSupplyUser" resultMap="BaseResultMap" > select * from V_SupplyUser </select> <insert id="insert" parameterType="VSupplyUser" > insert into V_SupplyUser (SupplyCode, SupplyName, SupplyPass ) values (#{supplycode,jdbcType=NVARCHAR}, #{supplyname,jdbcType=NVARCHAR}, #{supplypass,jdbcType=NVARCHAR} ) </insert> <insert id="insertSelective" parameterType="VSupplyUser" > insert into V_SupplyUser <trim prefix="(" suffix=")" suffixOverrides="," > <if test="supplycode != null" > SupplyCode, </if> <if test="supplyname != null" > SupplyName, </if> <if test="supplypass != null" > SupplyPass, </if> </trim> <trim prefix="values (" suffix=")" suffixOverrides="," > <if test="supplycode != null" > #{supplycode,jdbcType=NVARCHAR}, </if> <if test="supplyname != null" > #{supplyname,jdbcType=NVARCHAR}, </if> <if test="supplypass != null" > #{supplypass,jdbcType=NVARCHAR}, </if> </trim> </insert></mapper>4）Dubbo服务接口包：VSupplierUsersService
package com.ouc.ulab.service;import java.util.List;import com.ouc.ulab.model.VSupplyUser;public interface VSupplierUsersService {public VSupplyUser getVSupplyUserByCode(String supplycode);public List <VSupplyUser> getAllVSupplyUser();}5）Dubbo服务接口具体实现包：VSupplierUsersSerImpl
package com.ouc.ulab.service.impl;import java.util.List;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import com.ouc.ulab.dao.VSupplyUserMapper;import com.ouc.ulab.model.VSupplyUser;import com.ouc.ulab.service.VSupplierUsersService;@Service("vSupplierUsersService")public class VSupplierUsersSerImpl implements VSupplierUsersService{@Autowired VSupplyUserMapper vSuppUserMapper;@Overridepublic VSupplyUser getVSupplyUserByCode(String supplycode){ return vSuppUserMapper.getVSupplyUserByCode(supplycode);}@Overridepublic List <VSupplyUser> getAllVSupplyUser(){ return vSuppUserMapper.getAllVSupplyUser();}}5.发布接口测试Main：UsersProvider
package com.ouc.ulab.main;import java.util.ArrayList;import java.util.List;import org.apache.log4j.Logger;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.ouc.ulab.service.VSupplierUsersService;import com.ouc.ulab.model.VSupplyUser;import com.ouc.mkhl.service.UsersEvaluateService;import com.ouc.mkhl.model.PlanCount;public class UsersProvider { private static VSupplierUsersService vSuppUsersSer; private static UsersEvaluateService usersEvaluateSer; @Autowired public static void main(String[] args) throws Exception {try { @SuppressWarnings("resource") ClassPathXmlApplicationContext cxt = new ClassPathXmlApplicationContext( new String[] { "classpath:spring.xml", "classpath:spring-mybatis.xml", "classpath:spring-dubbo.xml" }); cxt.start(); vSuppUsersSer = (VSupplierUsersService) cxt .getBean("vSupplierUsersService"); String supplyCode = "V98758"; VSupplyUser user = vSuppUsersSer.getVSupplyUserByCode(supplyCode); System.out.println("供应商用户信息:"); System.out.println("V码:" + user.getSupplycode()); System.out.println("供应商名称:" + user.getSupplyname()); System.out.println("供应商登录密码:" + user.getSupplypass()); List<VSupplyUser> supplyUserList = new ArrayList<VSupplyUser>(); supplyUserList = vSuppUsersSer.getAllVSupplyUser(); System.out.println("供应商用户总量:"+supplyUserList.size()); usersEvaluateSer = (UsersEvaluateService) cxt.getBean("usersEvaluateService"); List<PlanCount> planCountList = new ArrayList<PlanCount>(); planCountList = usersEvaluateSer.getPlanCountByYearAndVCode("2016", "V13187"); System.out.println("问题方案统计结果：" + planCountList.size()); PlanCount planCount = new PlanCount(); planCount = usersEvaluateSer.getPlanCountByYearAndMonthAndVCode("2016", "V13187", 4); System.out.println("问题方案：" + planCount.getPlanNum() + planCount.getQuestionNum()); System.in.read(); // 模拟开启} catch (Exception e) { e.printStackTrace(); System.out.println(e.getMessage()); Logger log = Logger.getLogger(UsersProvider.class); log.error(e.getMessage()); // 将异常输出到文件} }}6.运行结果如下图：
以上数据库分库已经大功告成，以后在与大家详细介绍如何分表，以及分表的原则。
文章中如有错误，欢迎高手指正，本人是一个小菜鸟，正在努力学习中。
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