前一阵子接手了一个使用SpringBoot 和spring-data-jpa开发的项目
后期新加入一个小伙伴,表示jpa相比mybatis太难用,多表联合的查询写起来也比较费劲,所以便加入了mybatis的支持
开始的时候
@Configuration @EnableJpaRepositories("com.xxx.xxx.repository") class JpaConfig
使用这种方式去配置的jpa,遇到一个问题,就是能select 但是不能save,所以就修改为配置文件的方式:
下面直接上配置文件:
1、spring的配置
<?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:task="http://www.springframework.org/schema/task" 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/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 http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd"> <!-- 扫描注解文件 --> <context:component-scan base-package="com.xxx"/> <task:annotation-driven/> <bean id="springContextHolder" class="com.xxx.common.config.SpringContextHolder" lazy-init="false"></bean> <bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"> <property name="locations"> <list> <value>classpath*:jdbc.properties</value> <value>classpath*:app.properties</value> </list> </property> </bean> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer"> <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/> <property name="fileEncoding" value="UTF-8"/> <property name="properties" ref="configProperties"/> </bean> <!-- dataSource 配置 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <!-- 基本属性 url、user、password --> <!-- <property name="driverClassName" value="${ds.driverClassName}" /> --> <property name="url" value="${ds.url}"/> <property name="username" value="${ds.username}"/> <property name="password" value="${ds.password}"/> <!-- 配置初始化大小、最小、最大 --> <property name="initialSize" value="${ds.initialSize}"/> <property name="minIdle" value="${ds.minIdle}"/> <property name="maxActive" value="${ds.maxActive}"/> <!-- 配置获取连接等待超时的时间 --> <property name="maxWait" value="${ds.maxWait}"/> <!-- 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="${ds.timeBetweenEvictionRunsMillis}"/> <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 --> <property name="minEvictableIdleTimeMillis" value="${ds.minEvictableIdleTimeMillis}"/> <property name="validationQuery" value="${ds.validationQuery}"/> <property name="testWhileIdle" value="${ds.testWhileIdle}"/> <property name="testOnBorrow" value="${ds.testOnBorrow}"/> <property name="testOnReturn" value="${ds.testOnReturn}"/> <!-- 打开PSCache,并且指定每个连接上PSCache的大小 --> <property name="poolPreparedStatements" value="${ds.poolPreparedStatements}"/> <property name="maxPoolPreparedStatementPerConnectionSize" value="${ds.maxPoolPreparedStatementPerConnectionSize}"/> <!-- 配置监控统计拦截的filters --> <property name="filters" value="${ds.filters}"/> <!-- 关闭abanded连接时输出错误日志 --> <property name="logAbandoned" value="${ds.logAbandoned}"/> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value="classpath:mybatis-config.xml"/> <property name="typeAliasesPackage" value="com.xxx.culture.domain"/> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:mapper/**/*.xml"/> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.xxx.xxx.dao"/> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!-- 事务管理 通知 --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <!-- 对insert,update,delete 开头的方法进行事务管理,只要有异常就回滚 --> <tx:method name="insert*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/> <tx:method name="update*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/> <tx:method name="delete*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/> <tx:method name="remove*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/> <tx:method name="save*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="flush*" propagation="REQUIRED"/> <!-- select,count,get,find开头的方法,开启只读,提高数据库访问性能 --> <tx:method name="select*" read-only="true"/> <tx:method name="count*" read-only="true"/> <tx:method name="get*" read-only="true"/> <tx:method name="find*" read-only="true"/> <tx:method name="search*" read-only="true"/> <!-- 对其他方法 使用默认的事务管理 --> <tx:method name="*"/> </tx:attributes> </tx:advice> <!-- 事务 aop 配置 com.xxx.smp.service..*Impl.*(..)) --> <aop:config> <aop:pointcut id="serviceMethods" expression="execution(* com.xxx.xxx.service..*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethods"/> </aop:config> <!-- 配置使Spring采用CGLIB代理 --> <aop:aspectj-autoproxy proxy-target-class="true"/> <!-- 事务注解支持 --> <tx:annotation-driven transaction-manager="transactionManager"/> <import resource="applicationContext-jpa.xml"/> </beans>
2、jpa的配置
初始时遇到一个问题:jpa org.hibernate.LazyInitializationException: could not initialize proxy – no Session
在这儿找到了答案http://my.oschina.net/alexgaoyh/blog/313541
配置如下
<?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:jpa="http://www.springframework.org/schema/data/jpa" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd" > <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <!-- 指定数据源 --> <property name="dataSource" ref="dataSource"/> <!-- 指定Entity实体类包路径 --> <property name="packagesToScan"> <list> <value>com.xxx.xxx.jpadomain</value> </list> </property> <!-- 指定JPA属性;如Hibernate中指定是否显示SQL的是否显示、方言等 --> <property name="jpaVendorAdapter"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> <!-- 是否生成ddl文件 --> <property name="generateDdl" value="true"/> <!-- 是否展示sql --> <property name="showSql" value="false"/> <!-- 必要的数据库库使用的详细信息 --> <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect"/> <!-- mysql,自行选择 --> <property name="database" value="MYSQL"/> </bean> </property> <property name="jpaProperties"> <props> <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy </prop> <prop key="hibernate.hbm2ddl.auto">update</prop> <prop key="hibernate.enable_lazy_load_no_trans">true</prop> </props> </property> </bean> <!-- Spring Data Jpa配置 --> <!-- 配置 启用扫描并自动创建代理的功能 factory-class="com.monk.base.jpa.PeakJpaRepositoryFactory"自己定义的bean注解方式,可以不写,直接注解所有包下的 --> <jpa:repositories base-package="com.xxx.xxx.repository" transaction-manager-ref="transactionManager" entity-manager-factory-ref="entityManagerFactory"/> <!-- Jpa 事务配置 --> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory"/> </bean> <!-- 开启注解事务 --> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/> </beans>