java，

java，

public static void main(String[] args) {
		Connection connection = DBConnection.getConn();
		PreparedStatement preparedStatement = null;
		ResultSet  resultSet = null;
		int isResultSet;
		try {
			 String sql = "delete from person where name = ?";
			 preparedStatement=connection.prepareStatement(sql);
			 preparedStatement.setString(1, "alex");
			 isResultSet = preparedStatement.executeUpdate();
			} catch (SQLException e) {
			e.printStackTrace();
		}finally{
			DBConnection.close(connection, preparedStatement, resultSet);
		}
	}