DemoGetGeneratedKeysMySQL.java Source code

Introduction

Here is the source code for DemoGetGeneratedKeysMySQL.java

Source

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;

public class DemoGetGeneratedKeysMySQL {
    public static Connection getConnection() throws Exception {
        String driver = "org.gjt.mm.mysql.Driver";
        String url = "jdbc:mysql://localhost/databaseName";
        String username = "root";
        String password = "root";

        Class.forName(driver);
        Connection conn = DriverManager.getConnection(url, username, password);
        return conn;
    }

    public static void main(String[] args) throws Exception {
        Connection conn = getConnection();
        Statement stmt = null;
        ResultSet rs = null;
        try {
            conn = getConnection();
            stmt = conn.createStatement();
            stmt.executeUpdate("insert into animals_table (name) values('newName')");
            rs = stmt.getGeneratedKeys();
            while (rs.next()) {
                ResultSetMetaData rsMetaData = rs.getMetaData();
                int columnCount = rsMetaData.getColumnCount();

                for (int i = 1; i <= columnCount; i++) {
                    String key = rs.getString(i);
                    System.out.println("key " + i + " is " + key);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        } finally {
            try {
                rs.close();
                stmt.close();
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}