Demo ResultSet for MySQL
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DemoResultSet_MySQL {
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) {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
conn = getConnection();
System.out.println("conn=" + conn);
// prepare query
String query = "select id, name, age from employees";
// create a statement
stmt = conn.createStatement();
// execute query and return result as a ResultSet
rs = stmt.executeQuery(query);
// extract data from the ResultSet
while (rs.next()) {
String id = rs.getString(1);
String name = rs.getString(2);
int age = rs.getInt(3);
System.out.println("id=" + id);
System.out.println("name=" + name);
System.out.println("age=" + age);
System.out.println("---------------");
}
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
} finally {
// release database resources
try {
rs.close();
stmt.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
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