容易马虎的list.add(对象)

public List<Message> getAllMessage(String sql,String[] args) throws Exception {
  // TODO Auto-generated method stub
  
  ResultSet  rs = this.executeQuery(sql, args);
   
  List<Message> list = new ArrayList<Message>();
//  Message message = new Message();   //2处
  try {
   while(rs.next())
   {
    Message message = new Message();               //1处
    message.setId(rs.getInt("id"));
    message.setName(rs.getString("name"));
    message.setPhone(rs.getString("phone"));
    message.setEmail(rs.getString("email"));
    message.setTitle(rs.getString("title"));
    message.setContent(rs.getString("content"));
    System.out.println(message.getId()+"-------------");
    list.add(message);
   }
   
   for (Message a : list) {
    System.out.println(a.getId()+"aaaaaaaaaaaaaaaaaaa");
   }
  } catch (SQLException e) {
   // TODO Auto-generated catch block
   throw new Exception(" com.webbook.impl.MessageDaoImpl.public List<Message> getAllMessage(String sql,String[] args)方法异常",e);
  }
 
  return list;
 }

 

如果把1处注释掉，2处放开，结果会反复出现最后一条数据。