Answer answer=new Answer(); //for循環外new
for(int i=0;i<answerids.length;i++){answer=(Answer) session.load(Answer.class,new Long(answerids[i]));
answer.setStatus("答案");
session.update(answer);
}
tra.commit();
.......................
//以上代碼可以正常更新相應的Answer數據.
.......................
for(int i=0;i<answerids.length;i++){
Answer answer=new Answer(); //for循環內new
answer=(Answer) session.load(Answer.class,new Long(answerids[i]));
answer.setStatus("答案");
session.update(answer);
}
tra.commit();
.......................
//該處只更新最後一條數據
Answer answer=new Answer();
如果把Answer answer=new Answer(); 放入for循環裏面,回執行兩次。