public class Role {private int id;private String roleName;private String note;@Overridepublic String toString() {return "Role{" +"id=" + id +", roleName='" + roleName + '\'' +", note='" + note + '\'' +'}';}public Role() {}public Role(int id, String roleName, String note) {this.id = id;this.roleName = roleName;this.note = note;}public int getId() {return id;}public void setId(int id) {this.id = id;}public String getRoleName() {return roleName;}public void setRoleName(String roleName) {this.roleName = roleName;}public String getNote() {return note;}public void setNote(String note) {this.note = note;}
}

package com.wbg.springtransaction.service;import com.wbg.springtransaction.config.JavaConfig;
import com.wbg.springtransaction.entity.Role;
import org.apache.ibatis.session.SqlSessionException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.stereotype.Service;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.DefaultTransactionDefinition;import javax.sql.DataSource;
import javax.transaction.*;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;@Service
public class RoleServiceImpl implements RoleService {@AutowiredDataSource dataSource;@Autowiredprivate PlatformTransactionManager transactionManager = null;@Overridepublic List<Role> listAll() {List<Role> list = new ArrayList<Role>();Connection connection = null;try {connection = dataSource.getConnection();} catch (SQLException e) {e.printStackTrace();}String sql = "select * from role";PreparedStatement preparedStatement = null;try {preparedStatement = connection.prepareStatement(sql);ResultSet resultSet = preparedStatement.executeQuery();Role role = null;while (resultSet.next()) {role = new Role(resultSet.getInt(1),resultSet.getString(2),resultSet.getString(3));list.add(role);}} catch (SQLException e) {e.printStackTrace();} finally {if (connection != null) {try {connection.close();} catch (SQLException e) {e.printStackTrace();}}}return list;}public int insert(Role role) {Connection connection = null;DefaultTransactionDefinition dtd = new DefaultTransactionDefinition();dtd.setPropagationBehavior(DefaultTransactionDefinition.PROPAGATION_REQUIRED);TransactionStatus ts = transactionManager.getTransaction(dtd);String sql = "insert into role(role_name,note) values(?,?)";PreparedStatement preparedStatement = null;try {connection = dataSource.getConnection();preparedStatement = connection.prepareStatement(sql);preparedStatement.setString(1, role.getRoleName());preparedStatement.setString(2, role.getNote());preparedStatement.executeUpdate();transactionManager.commit(ts);} catch (SQLException e) {transactionManager.rollback(ts);System.out.println("原因:" + e.getMessage());}return 0;}
}

@Configuration
@ComponentScan("com.wbg.springtransaction.*")
@EnableTransactionManagement
public class JavaConfig implements TransactionManagementConfigurer {@Bean(name = "dataSource")public DataSource getDataSource()  {ComboPooledDataSource dataSource=new ComboPooledDataSource();try {dataSource.setDriverClass("org.mariadb.jdbc.Driver");} catch (PropertyVetoException e) {e.printStackTrace();}dataSource.setJdbcUrl("jdbc:mariadb://localhost:3306/wbg_logistics");dataSource.setUser("root");dataSource.setPassword("123456");dataSource.setMaxPoolSize(30);return dataSource;}@Override@Bean("transactionManager")public  PlatformTransactionManager annotationDrivenTransactionManager() {DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();transactionManager.setDataSource(getDataSource());return transactionManager;}
}

 public static void main(String[] args) throws SQLException {ApplicationContext applicationContext = new AnnotationConfigApplicationContext(JavaConfig.class);RoleService roleService = applicationContext.getBean(RoleService.class);roleService.insert(new Role(1,"asd","ss"));for (Role role : roleService.listAll()) {System.out.println(role);}}

<?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"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd"><!--配置数据源--><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"><property name="driverClass" value="org.mariadb.jdbc.Driver" /><property name="jdbcUrl" value="jdbc:mariadb://localhost:3306/wbg_logistics" /><property name="user" value="root" /><property name="password" value="123456" /><property name="maxPoolSize" value="30" /><property name="minPoolSize" value="10" /><property name="autoCommitOnClose" value="false" /><property name="checkoutTimeout" value="10000" /><property name="acquireRetryAttempts" value="2" /></bean><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"/></bean>
</beans>