public ResultSet executeQuery(String sql)throws Exception{
        ResultSet rs=null;
Statement stmt=null;
try{
sql=new String(sql.getBytes("GBK"),"ISO8859_1");
            conn=DriverManager.getConnection(sConnStr,userid,passwd);
            stmt=conn.createStatement();
            rs=stmt.executeQuery(sql);
stmt.close();
conn.close();
        }
        catch(SQLException ex){
            System.out.println("sql.executeQuery:"+ex.getMessage());
        }
return rs;
    }刚刚那个程序写错了,是这个啊!