Eclpise进行mysql封装数组操作中对于筛选id大于1时，rs.next（）一直为false，跪求各位大神

public static void test03(){

Connection conn = JDBCUtil.getMysqlConn();
PreparedStatement ps = null;
ResultSet rs = null;
Map> maps = new HashMap>();

    try {
        ps = conn.prepareStatement("select empname,salary,age from emp where id 》?");
        ps.setObject(1,1);
        rs = ps.executeQuery();

    System.out.println("While 程序执行之前");
        System.out.println(rs.next());

        while(rs.next()) {

            System.out.println("while----执行中");

            Map<String, Object> row = new HashMap<String, Object>();
            row.put("empname", rs.getString(1));
            row.put("salary", rs.getString(2));
            row.put("age", rs.getString(3));
            maps.put(rs.getString(1), row);

        }System.out.println("while 运行结束");

    } catch (Exception e) {
        e.printStackTrace();
    }finally {
        JDBCUtil.close(rs, ps, conn);
    }System.out.println("finall 执行结束");

    for (String empname: maps.keySet()) {
        Map<String, Object> row = maps.get(empname);
        for (String key : row.keySet()) {
            System.out.println(key + "---" + row.get(key)+"\t");
        }
        System.out.println("for外循环结束");
    }

    System.out.println("test03运行结束");

}