假定参数为: Int[] objs;

......

StringBuffer sql = new StringBuffer();

sql.append("select * from table where id in（");

for (int i=0; i<objs.length; i++)

    (i == objs.length-1) ? sql.append("?)") : sql.append("?,");

PreparedStatement ps = conn.preparedStatement(sql.toString());

for (int i=1; i<=objs.length; i++)

    ps.setInt(i, objs[i]);