我在使用 Java 的预处理语句将数组传递到 SQL 查询时遇到了一些麻烦。我首先尝试了 sourceforge 驱动程序,但是当我调用 setArray 方法时会得到 AbstractMethodError。不知道我换到 Microsoft sqlserver 驱动程序的解决方案,但现在我得到一个完全不同的错误,即“java.sql.SQLFeatureNotSupportedException:不支持此操作。” 尝试了很多东西来尝试解决这个问题,但似乎没有任何效果。
我的 Java 代码看起来类似于我在这里和互联网上看到的示例,如下所示,
PreparedStatement ps = connection.prepareStatement(query);
String[] suppliers = {"21","2774","120563","3714","59"};
ps.setArray(1, connection.createArrayOf("text", suppliers));
ResultSet rs = ps.executeQuery();
我的 SQL 查询示例。唯一真正感兴趣的行是我添加“?”的最后一行。字符,据我了解,这是我将参数传递给 SQL 查询的方式。
productsPrices.query = select contract.supplierid as 'hotelid' \
, round((rate.s1/money.buy)*euro.sell,0) as "single" \
, round((rate.s2/money.buy)*euro.sell,0) as "double" \
,service.Name as 'roomtype' \
,stock.alloc - stock.taken as 'stock.available' \
, contract.notes as 'boardType' \
, object.name as 'occupancy' \
,object.cap as 'capacity' \
,object.mincap as 'min capacity' \
,stock.date as 'date' \
from stock stock \
inner join rate rate on stock.rateid = rate.id \
inner join contract contract on rate.contractid = contract.id \
inner join service service on contract.serviceid = service.ID \
inner join object object on service.objectid = object.ID \
inner join band band on contract.termsid = band.ID \
inner join Money money on band.moneyid = money.id \
inner join Money euro on euro.Name = 'Euros' \
where stock.date > getdate() \
and stock.closed = 0 \
and (stock.alloc - stock.taken) > 0 \
and stock.date > getdate() \
and contract.supplierid in (?) \
and contract.Finish > GETDATE()