文件名及路径` src/main/resources/applicationContext.xml` 配置内容: ***** ~~~ <?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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:tx="http://www.springframework.org/schema/tx" 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/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"> <!--spring和spring data jpa的配置--> <!-- 1.创建entityManagerFactory对象交给spring容器管理--> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="dataSource" ref="dataSource"/> <!-- 配置扫描的包(实体类所在的包)--> <property name="packagesToScan" value="net.youworker.domain"/> <!-- jpa的实现厂家--> <property name="persistenceProvider"> <bean class="org.hibernate.jpa.HibernatePersistenceProvider"/> </property> <!-- jpa的供应商适配器--> <property name="jpaVendorAdapter"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> <!-- 配置是否自动创建数据库表--> <property name="generateDdl" value="false"/> <!-- 指定数据库类型--> <property name="database" value="MYSQL"/> <!-- 数据库方言:支持的特有语法--> <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect"/> <!--是否显示sql语句--> <property name="showSql" value="true"/> </bean> </property> <!-- jpa的方言:高级的特性--> <property name="jpaDialect"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/> </property> </bean> <!--2.创建数据库连接池--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="user" value="root"/> <property name="password" value="admin123"/> <property name="jdbcUrl" value="jdbc:mysql:///test"/> <property name="driverClass" value="com.mysql.cj.jdbc.Driver"/> </bean> <!-- 3.整合spring datajpa--> <jpa:repositories base-package="net.youworker.dao" transaction-manager-ref="transactionManager" entity-manager-factory-ref="entityManagerFactory"></jpa:repositories> <!-- 4.配置事务管理器--> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory"></property> </bean> <!-- 5.声明式事务--> <!-- 6.配置包扫描--> <context:component-scan base-package="net.youworker"></context:component-scan> </beans> ~~~