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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Main {
public static void main(String[] args) throws Exception {
String url = "jdbc:mysql://localhost/testdb";
String username = "root";
String password = "";
Class.forName("com.mysql.jdbc.Driver");
Connection conn = null;
try {
conn = DriverManager.getConnection(url, username, password);
conn.setAutoCommit(false);
Statement st = conn.createStatement();
st.execute("INSERT INTO orders (username, order_date) VALUES ('java', '2007-12-13')",
Statement.RETURN_GENERATED_KEYS);
ResultSet keys = st.getGeneratedKeys();
int id = 1;
while (keys.next()) {
id = keys.getInt(1);
}
PreparedStatement pst = conn.prepareStatement("INSERT INTO order_details (order_id, product_id, quantity, price) VALUES (?, ?, ?, ?)");
pst.setInt(1, id);
pst.setString(2, "1");
pst.setInt(3, 10);
pst.setDouble(4, 100);
pst.execute();
conn.commit();
System.out.println("Transaction commit...");
} catch (SQLException e) {
if (conn != null) {
conn.rollback();
System.out.println("Connection rollback...");
}
e.printStackTrace();
} finally {
if (conn != null && !conn.isClosed()) {
conn.close();
}
}
}
}
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