用Java+xml配置方式实现Spring数据事务（编程式事务）

一、用Java配置的方式

1、实体类：

Role 

public class Role {
    private int id;
    private String roleName;
    private String note;


    @Override
    public 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;
    }
}

2、接口

RoleService

3、实现类

RoleServiceImpl

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 {
    @Autowired
    DataSource dataSource;
    @Autowired
    private PlatformTransactionManager transactionManager = null;
    @Override
    public 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;
    }
}

4、配置：

JavaConfig 

@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;
    }
}

5、测试：

 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);
        }
    }

二、用xml进行配置：

1、创建xml

<?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>

2、配置：

@Configuration
@ComponentScan("com.wbg.springtransaction.*")
@EnableTransactionManagement
@ImportResource({"classpath:spring-cfg.xml"})
public class JavaConfig implements TransactionManagementConfigurer {
}

3、实现类RoleServiceImpl不变

4、测试：

 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);
        }
    }