java -How使用批处理将excel数据插入数据库？

import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class ExcelToDatabase {
    public static void main(String[] args) {
        String excelFilePath = "path/to/excel/file.xlsx";
        String databaseUrl = "jdbc:mysql://localhost:3306/mydatabase";
        String username = "username";
        String password = "password";

        try (Connection connection = DriverManager.getConnection(databaseUrl, username, password)) {
            FileInputStream fileInputStream = new FileInputStream(excelFilePath);
            Workbook workbook = new XSSFWorkbook(fileInputStream);
            Sheet sheet = workbook.getSheetAt(0);

            String insertQuery = "INSERT INTO mytable (column1, column2, column3) VALUES (?, ?, ?)";
            PreparedStatement preparedStatement = connection.prepareStatement(insertQuery);

            int batchSize = 1000; // 每次插入的批处理大小
            int count = 0;

            for (Row row : sheet) {
                Cell cell1 = row.getCell(0);
                Cell cell2 = row.getCell(1);
                Cell cell3 = row.getCell(2);

                preparedStatement.setString(1, cell1.getStringCellValue());
                preparedStatement.setString(2, cell2.getStringCellValue());
                preparedStatement.setString(3, cell3.getStringCellValue());

                preparedStatement.addBatch();

                if (++count % batchSize == 0) {
                    preparedStatement.executeBatch();
                }
            }

            preparedStatement.executeBatch(); // 执行剩余的批处理

            workbook.close();
            fileInputStream.close();

            System.out.println("数据插入成功！");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}