java导出mysql脚本文件

import java.io.FileWriter;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class MySQLScriptExporter {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String user = "username";
        String password = "password";
        String tableName = "mytable";
        String outputFile = "output.sql";

        try (Connection conn = DriverManager.getConnection(url, user, password);
             Statement stmt = conn.createStatement();
             FileWriter writer = new FileWriter(outputFile)) {

            // 获取表结构
            ResultSet rs = stmt.executeQuery("SHOW CREATE TABLE " + tableName);
            if (rs.next()) {
                String createTableSQL = rs.getString(2);
                writer.write(createTableSQL + ";\n\n");
            }

            // 获取表数据
            rs = stmt.executeQuery("SELECT * FROM " + tableName);
            ResultSetMetaData metaData = rs.getMetaData();
            int columnCount = metaData.getColumnCount();

            while (rs.next()) {
                writer.write("INSERT INTO " + tableName + " VALUES (");
                for (int i = 1; i <= columnCount; i++) {
                    if (i > 1) writer.write(", ");
                    writer.write("'" + rs.getString(i) + "'");
                }
                writer.write(");\n");
            }

            System.out.println("SQL script exported to " + outputFile);

        } catch (SQLException | IOException e) {
            e.printStackTrace();
        }
    }
}