MySQL PreparedStatement：参数索引超出范围

Question

I'v searched during one hour trough stackoverflow and couldn't find an answer to my problem (Well, there's people having the same error, but not exactly like mine).

So here's the code:

    public synchronized static void setAllData(String player, String xp, String lvl, String coins, String won, String lost, String kills, String deaths, String redput, String blueput, String time)
{
    try
    {
        PreparedStatement sql =
        connection.prepareStatement("UPDATE `" + Main.table + "` SET `xp` = ?, lvl` = ?,  `towercoins` = ?, `won` = ?, `lost` = ?, `kills` = ?, `deaths` = ?, `redput` = ?, `blueput` = ?, `time` = ? WHERE `player` = ?;");
        sql.setString(1, xp);
        sql.setString(2, lvl);
        sql.setString(3, coins);
        sql.setString(4, won);
        sql.setString(5, lost);
        sql.setString(6, kills);
        sql.setString(7, deaths);
        sql.setString(8, redput);
        sql.setString(9, blueput);
        sql.setString(10, time);
        sql.setString(11, player);
        sql.executeUpdate();
        sql.close();
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
}

And i have this error every time:

Java.sql.SQLException: Parameter index out of range (2 > number of parameters, which is 1).

I don't get it since all parameters are here etc... so why ?

Thanks a lot :)

Answer 1

似乎您错过了此声明的开头引号。

SET `xp` = ?, lvl` = ?,

Answer 2

就像这个连接" + Main.table + " （“ UPDATE " + Main.table + " SET xp =？， lvl =？， towercoins =？， won =？， lost =？， kills =？， deaths =？， redput =？ ， blueput =？， time =？WHERE player = blueput “）;