使用java将批量记录从oracle数据库插入或更新到Mysql数据库。

import java.sql.*;

public class OracleToMySQL {
    public static void main(String[] args) {
        // Oracle数据库连接信息
        String oracleUrl = "jdbc:oracle:thin:@localhost:1521:orcl";
        String oracleUsername = "username";
        String oraclePassword = "password";

        // MySQL数据库连接信息
        String mysqlUrl = "jdbc:mysql://localhost:3306/dbname";
        String mysqlUsername = "username";
        String mysqlPassword = "password";

        Connection oracleConn = null;
        Connection mysqlConn = null;
        Statement oracleStmt = null;
        Statement mysqlStmt = null;
        ResultSet resultSet = null;

        try {
            // 建立Oracle数据库连接
            oracleConn = DriverManager.getConnection(oracleUrl, oracleUsername, oraclePassword);
            oracleStmt = oracleConn.createStatement();

            // 查询Oracle数据库中的批量记录
            String oracleQuery = "SELECT * FROM table_name";
            resultSet = oracleStmt.executeQuery(oracleQuery);

            // 建立MySQL数据库连接
            mysqlConn = DriverManager.getConnection(mysqlUrl, mysqlUsername, mysqlPassword);
            mysqlStmt = mysqlConn.createStatement();

            // 批量插入或更新到MySQL数据库
            while (resultSet.next()) {
                // 获取记录的字段值
                int id = resultSet.getInt("id");
                String name = resultSet.getString("name");
                // ...

                // 构建插入或更新语句
                String mysqlQuery = "INSERT INTO table_name (id, name) VALUES (" + id + ", '" + name + "')";
                // 或者使用更新语句
                // String mysqlQuery = "UPDATE table_name SET name = '" + name + "' WHERE id = " + id;

                // 执行插入或更新语句
                mysqlStmt.executeUpdate(mysqlQuery);
            }

            System.out.println("批量插入或更新完成！");
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            // 关闭数据库连接和释放资源
            try {
                if (resultSet != null) {
                    resultSet.close();
                }
                if (oracleStmt != null) {
                    oracleStmt.close();
                }
                if (oracleConn != null) {
                    oracleConn.close();
                }
                if (mysqlStmt != null) {
                    mysqlStmt.close();
                }
                if (mysqlConn != null) {
                    mysqlConn.close();
                }
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}