使用resultset更新表

Question

我尝试在处理后从同一个表中另一列的连续更新表的列。

我使用Java进行处理，我只是设法为我的表的第一行执行此任务。

我不知道为什么我无法浏览＆＃34;结果集＆＃34;。我该如何解决这个问题？

String Sql = "Select Update_Action,id_incident from incident where Status like'Closed'";
con = getConnection("jdbc:mysql://localhost:3306/base_rapport","root","");
stmt = con.createStatement();
rs = stmt.executeQuery(Sql);

//treatement
int i = 1;
while(rs.absolute(i))
{
    str = rs.getString(1);
    nom = "";
    while(!"".equals(str))
    {
        int debut = str.indexOf('(') + 1;
        int fin = str.indexOf(')', debut);
        nom += " " + str.substring(debut, fin);
        str = str.substring(fin + 1, str.length()); 
        nom += ", ";

        //updating my table      
        Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/base_rapport", "root", "");
        String query = "update incident set intervenants = ? where id_incident=?";

        java.sql.PreparedStatement preparedStmt = conn.prepareStatement(query);
        preparedStmt.setString(1, nom);
        preparedStmt.setString(2, rs.getString(2));
        preparedStmt.executeUpdate();
    }
    //for pointing on the next row of "resultset"
    i++;
}