DBUTILS
public static void main(String[] args) throws SQLException, ClassNotFoundException {Class.forName("org.apache.derby.jdbc.ClientDriver");Connection jdbcConnection = DriverManager.getConnection("jdbc:derby://localhost:1527/myDB", "root", "lin");ResultSetHandler handler = new ResultSetHandler(){@Overridepublic Object handle(ResultSet rs) throws SQLException {if(!rs.next()){return null;}Object[] objects = new Object;for (int i = 0; i < objects.length; i++) {objects = rs.getObject(i+1);}return objects;}};//runnerQueryRunner runner = new QueryRunner();Object[] objects = (Object[]) runner.query(jdbcConnection, "select * from demouser", handler);System.out.println(objects.length);for (Object object : objects) {System.out.println(ArrayUtils.toString(object));;}}
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