兔子-Parameter index out of range (三 > number of parameters, which is 2)
兔子--Parameter index out of range (3 > number of parameters, which is 2).
String sql2 = "insert into supplygoods(id,supplyaccount,goodsaccount,state)values(19,?,?,?)";
try {
PreparedStatement stm2 = conn.prepareStatement(sql2);
// 结果集
stm2.setInt(1, g.getSupplyAccount());
stm2.setInt(2, g.getAccount());
stm2.setInt(3, 0);
stm2.execute();
原因：sql2中有三个？，设置数据的时候，也需要为sql2设置三个数据，
如果：你只为sql2设置了2个数据，则会出现如上问题。