13 秒插入 30 万条数据，批量插入！

数据库表

CREATE TABLE `t_user` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '用户id',
  `username` varchar(64) DEFAULT NULL COMMENT '用户名称',
  `age` int(4) DEFAULT NULL COMMENT '年龄',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='用户信息表';

User实体

/**
 * 
用户实体
 *
 * @Author Jacky
 */
@Data
public class User {

    private int id;
    private String username;
    private int age;

}

mapper接口

public interface UserMapper {

    /**
     * 批量插入用户
     * @param userList
     */
    void batchInsertUser(@Param("list") List userList);


}

mapper.xml文件

    insert into t_user(username,age) values
    
        (
        #{item.username},
        #{item.age}
        )
    

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.username=root
jdbc.password=root

sqlMapConfig.xml

/**
 * 分批次批量插入一
 * @throws IOException
 */
@Test
public void testBatchInsertUser() throws IOException {
    InputStream resourceAsStream =
            Resources.getResourceAsStream("sqlMapConfig.xml");
    SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
    SqlSession session = sqlSessionFactory.openSession();
    System.out.println("===== 开始插入数据 =====");
    long startTime = System.currentTimeMillis();
    int waitTime = 10;
    try {
        List userList = new ArrayList<>();
        for (int i = 1; i <= 300000; i++) {
            User user = new User();
            user.setId(i);
            user.setUsername("共饮一杯无 " + i);
            user.setAge((int) (Math.random() * 100));
            userList.add(user);
            if (i % 1000 == 0) {
                session.insert("batchInsertUser", userList);
                // 每 1000 条数据提交一次事务
                session.commit();
                userList.clear();

                // 等待一段时间
                Thread.sleep(waitTime * 1000);
            }
        }
        // 最后插入剩余的数据
        if(!CollectionUtils.isEmpty(userList)) {
            session.insert("batchInsertUser", userList);
            session.commit();
        }

        long spendTime = System.currentTimeMillis()-startTime;
        System.out.println("成功插入 30 万条数据,耗时："+spendTime+"毫秒");
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        session.close();
    }
}

/**
 * 分批次批量插入二
 * @throws IOException
 */
@Test
public void testBatchInsertUser() throws IOException {
    InputStream resourceAsStream =
            Resources.getResourceAsStream("sqlMapConfig.xml");
    SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
    SqlSession session = sqlSessionFactory.openSession();
    System.out.println("===== 开始插入数据 =====");
    long startTime = System.currentTimeMillis();
    int waitTime = 10;
    try {
        List userList = new ArrayList<>();
        for (int i = 1; i <= 300000; i++) {
            User user = new User();
            user.setId(i);
            user.setUsername("共饮一杯无 " + i);
            user.setAge((int) (Math.random() * 100));
            userList.add(user);
            if (i % 1000 == 0) {
                session.insert("batchInsertUser", userList);
                // 每 1000 条数据提交一次事务
                session.commit();
                userList.clear();
            }
        }
        // 最后插入剩余的数据
        if(!CollectionUtils.isEmpty(userList)) {
            session.insert("batchInsertUser", userList);
            session.commit();
        }

        long spendTime = System.currentTimeMillis()-startTime;
        System.out.println("成功插入 30 万条数据,耗时："+spendTime+"毫秒");
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        session.close();
    }
}

/**
 * JDBC分批次批量插入
 * @throws IOException
 */
@Test
public void testJDBCBatchInsertUser() throws IOException {
    Connection connection = null;
    PreparedStatement preparedStatement = null;

    String databaseURL = "jdbc:mysql://localhost:3306/test";
    String user = "root";
    String password = "root";

    try {
        connection = DriverManager.getConnection(databaseURL, user, password);
        // 关闭自动提交事务，改为手动提交
        connection.setAutoCommit(false);
        System.out.println("===== 开始插入数据 =====");
        long startTime = System.currentTimeMillis();
        String sqlInsert = "INSERT INTO t_user ( username, age) VALUES ( ?, ?)";
        preparedStatement = connection.prepareStatement(sqlInsert);

        Random random = new Random();
        for (int i = 1; i <= 300000; i++) {
            preparedStatement.setString(1, "共饮一杯无 " + i);
            preparedStatement.setInt(2, random.nextInt(100));
            // 添加到批处理中
            preparedStatement.addBatch();

            if (i % 1000 == 0) {
                // 每1000条数据提交一次
                preparedStatement.executeBatch();
                connection.commit();
                System.out.println("成功插入第 "+ i+" 条数据");
            }

        }
        // 处理剩余的数据
        preparedStatement.executeBatch();
        connection.commit();
        long spendTime = System.currentTimeMillis()-startTime;
        System.out.println("成功插入 30 万条数据,耗时："+spendTime+"毫秒");
    } catch (SQLException e) {
        System.out.println("Error: " + e.getMessage());
    } finally {
        if (preparedStatement != null) {
            try {
                preparedStatement.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }

        if (connection != null) {
            try {
                connection.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}