MyBatis整合,PageHelper分页插件,Spring事物管理。

MyBatis整合

在web.xml配置放jdbc.properties等配置文件的目录路径。

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<context-param>
<param-name>PROP_HOME</param-name>
<param-value>/Users/**/config</param-value>
</context-param>

在spring的spring-mvc.xml引入上面配的PROP_HOME

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<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>file:///${PROP_HOME}/jdbc.properties</value>
</list>
</property>
</bean>

用c3p0配置连接池。

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<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${mysql.url}" />
<property name="user" value="${mysql.username}" />
<property name="password" value="${mysql.password}" />
<property name="driverClass" value="${mysql.driverClassName}" />
<property name="maxPoolSize" value="${mysql.maxPoolSize}"/>
<property name="minPoolSize" value="${mysql.minPoolSize}"/>
<property name="initialPoolSize" value="${mysql.initialPoolSize}"/>
<property name="maxIdleTime" value="${mysql.maxIdleTime}"/>
<property name="acquireIncrement" value="${mysql.acquireIncrement}"/>
<property name="maxStatements" value="${mysql.maxStatements}"/>
<property name="idleConnectionTestPeriod" value="${mysql.idleConnectionTestPeriod}"/>
</bean>

配置MyBatis。

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<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 自动匹配Mapper映射文件 -->
<property name="mapperLocations" value="classpath*:mappings/**/*apper.xml"/>
<property name="typeAliasesPackage" value="com.bayes.entity"/>
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageHelper">
<property name="properties">
<value>
dialect=mysql
offsetAsPageNum=true
rowBoundsWithCount=true
pageSizeZero=true
reasonable=false
supportMethodsArguments=false
returnPageInfo=always
params=pageNum=pageHelperStart;pageSize=pageHelperRows;
</value>
</property>
</bean>
</array>
</property>
</bean>

配置MyBatis注解。

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<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.bayes.mapper" />
</bean>

jdbc.properties配置内容。

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mysql.driverClassName=com.mysql.jdbc.Driver
mysql.url=jdbc:mysql://*.*.*.*:3306/***?useUnicode:true&characterEncoding:UTF-8&allowMultiQueries:true&noAccessToProcedureBodies=true
mysql.username=***
mysql.password=**#**
mysql.initialPoolSize=20
mysql.maxPoolSize=100
mysql.minPoolSize=10
mysql.maxIdleTime=600
mysql.acquireIncrement=5
mysql.maxStatements=5
mysql.idleConnectionTestPeriod=60

PageHelper分页插件集成Spring,以及使用

PageHelper集成配置已经在上述配置MyBatis给出。
官方github有详细文档,可参照。


配置Spring事物管理

配置Spring-jdbc事物。

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<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>

匹配符合规则的方法。

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<tx:advice id="bayesAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="del*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="find*" propagation="REQUIRED"/>
<tx:method name="get*" propagation="REQUIRED"/>
<tx:method name="apply*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="allAdviceServiceMethod" expression="execution(* com.bayes.service.*.*(..))"/>
<aop:advisor pointcut-ref="allAdviceServiceMethod" advice-ref="bayesAdvice" />
</aop:config>