java怎么实现导出mysql某些表的建表和插入数据的sql文件？

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.sql.*;

public class MySQLTableExporter {
    private static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
    private static final String DB_URL = "jdbc:mysql://localhost:3306/your_database";
    private static final String USER = "your_username";
    private static final String PASSWORD = "your_password";

    public static void main(String[] args) {
        Connection conn = null;
        Statement stmt = null;
        BufferedWriter writer = null;

        try {
            // 注册 JDBC 驱动
            Class.forName(JDBC_DRIVER);

            // 打开连接
            conn = DriverManager.getConnection(DB_URL, USER, PASSWORD);

            // 要导出的表名
            String[] tableNames = {"table1", "table2", "table3"};

            // 创建文件写入器
            writer = new BufferedWriter(new FileWriter("export.sql"));

            // 遍历每个表进行导出
            for (String tableName : tableNames) {
                // 导出建表语句
                String createTableSQL = getCreateTableSQL(conn, tableName);
                writer.write(createTableSQL);
                writer.newLine();

                // 导出插入数据语句
                String insertDataSQL = getInsertDataSQL(conn, tableName);
                writer.write(insertDataSQL);
                writer.newLine();
            }

            System.out.println("导出成功！");

        } catch (ClassNotFoundException | SQLException | IOException e) {
            e.printStackTrace();
        } finally {
            // 关闭资源
            try {
                if (writer != null)
                    writer.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

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

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

    // 获取建表语句
    private static String getCreateTableSQL(Connection conn, String tableName) throws SQLException {
        Statement stmt = conn.createStatement();
        ResultSet rs = stmt.executeQuery("SHOW CREATE TABLE " + tableName);
        rs.next();
        String createTableSQL = rs.getString(2);
        rs.close();
        stmt.close();
        return createTableSQL;
    }

    // 获取插入数据语句
    private static String getInsertDataSQL(Connection conn, String tableName) throws SQLException {
        Statement stmt = conn.createStatement();
        ResultSet rs = stmt.executeQuery("SELECT * FROM " + tableName);
        ResultSetMetaData metaData = rs.getMetaData();
        int columnCount = metaData.getColumnCount();

        StringBuilder insertDataSQL = new StringBuilder();

        while (rs.next()) {
            StringBuilder values = new StringBuilder();
            for (int i = 1; i <= columnCount; i++) {
                Object value = rs.getObject(i);
                if (value != null) {
                    if (i > 1) {
                        values.append(", ");
                    }
                    values.append("'").append(value).append("'");
                }
            }

            insertDataSQL.append("INSERT INTO ").append(tableName).append(" VALUES (").append(values).append(");");
            insertDataSQL