JComboBox + JPA(JComboBox + JPA)

 考虑到java持久性API和JComboBox，我目前停留在Java问题上。 
 
 问题如下： 
 
 我有一个JDialog，我用它来添加一些东西到数据库中。 
 
 在该视图中： 
 
cbGenre = new JComboBox();
cbPublisher = new JComboBox();
 
 我想要的是在这两个组合框中，从List或ArrayList中加载值。 标准，从我发现，是一个组合框只接受一个字符串数组。 我还发现一个使用ArrayList的例子，我可以使用它。 
 
 现在主要的问题是： 
 
 我有2个表（只列出重要的列将被列出）： 
 
games
id pk int
genre int

genre
id pk int
name varchar
 
 它们通过JPA以M：1的关系连接 
 
 所以一场比赛只能有一种类型 
 一种流派可以有一个或多个游戏 
 
 我将如何在相应的组合框中添加检索到的流派名称，并且当我按下保存按钮时，检索组合框中名称的ID和该名称的ID？ 
 
 这是可能通过ArrayList，或者JCombobox不允许值对吗？ 我想这样做的原因是，当我将游戏保存到数据库时，我需要将选定的流派ID添加到数据库中，显然，用户不应该看到一个ID，而应该看到Action或RPG以及什么不。 
 
 对不起，如果我的问题有点不清楚。 如果是这样，请告诉我，这样我可以尝试更好地解释它。 
 
 英语不是我的母语，你现在可能已经注意到了:) 
 
 感谢阅读，我希望能尽快找到解决方案。 与此同时，谷歌更多地浏览谷歌 

I am currently stuck on a Java issue considering the java persistance API and JComboBox.
 
The issue is as follows:
 
I have a JDialog, whom I use to add something to the database.
 
In the view:
 
cbGenre = new JComboBox();
cbPublisher = new JComboBox();
 
What I want, is in these 2 combo boxes, to be loaded the values out of a List or ArrayList. Standard, from what I found out, was a combobox only accepting a String array. I also found one example that uses ArrayList, whom I can work with. 
 
Now the main question is:
 
I have 2 tables(only columns that matter will be listed):
 
games
id pk int
genre int

genre
id pk int
name varchar
 
They are connected via JPA in a M:1 relationship
 
so one game can only have one genre
 one genre can have one or more games
 
How will I go about to add the retrieved genre names in the appropriate combobox, and when I press the save button, retrieve both the id of the name in the combobox and the id of that name?
 
Is this possible via an ArrayList, or does a JCombobox not allow value pairs? The reason I want this, is when I save a game to the database, I need to have the selected genre id and add it to the database, and obviously, the user should not see an id, but rather Action, or RPG and what not.
 
Sorry if my question is a bit unclear. If it is, please do tell me so I can try to explain it better.
 
English is not my native tongue, whom you have probably noticed by now :)
 
Thanks for reading and I hope to find a solution soon. In the meantime ill browse trough google some more

原文：https://stackoverflow.com/questions/5270513