java 批量导入mysql数据库

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.List;

public class BatchInsertExample {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String user = "username";
        String password = "password";

        try (Connection conn = DriverManager.getConnection(url, user, password)) {
            conn.setAutoCommit(false); // 关闭自动提交

            String sql = "INSERT INTO mytable (column1, column2) VALUES (?, ?)";
            try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
                List<MyData> dataList = getDataList(); // 获取数据列表

                for (MyData data : dataList) {
                    pstmt.setString(1, data.getColumn1());
                    pstmt.setString(2, data.getColumn2());
                    pstmt.addBatch(); // 添加到批处理
                }

                pstmt.executeBatch(); // 执行批处理
                conn.commit(); // 提交事务
            } catch (SQLException e) {
                conn.rollback(); // 回滚事务
                e.printStackTrace();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    private static List<MyData> getDataList() {
        // 模拟获取数据列表
        return List.of(
            new MyData("value1", "value2"),
            new MyData("value3", "value4")
        );
    }
}

class MyData {
    private String column1;
    private String column2;

    public MyData(String column1, String column2) {
        this.column1 = column1;
        this.column2 = column2;
    }

    public String getColumn1() {
        return column1;
    }

    public String getColumn2() {
        return column2;
    }
}