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
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@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
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<?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
配置如下
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<?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> |
以上所述是小编给大家介绍的Spring jpa和mybatis整合遇到的问题解析,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:http://www.cnblogs.com/modprobe/p/5675809.html