[英]Eclipse Java Deployment: how to add auto-generate file to Jar file
I have finished my project, and now I have deployed it to jar file. 我已经完成了项目,现在将其部署到jar文件中。 But I have met a problem:
但是我遇到了一个问题:
My program auto generate a file (For example: data.sav) in Eclipse, it appears at the foremost project folder. 我的程序在Eclipse中自动生成一个文件(例如:data.sav),它出现在最前面的项目文件夹中。 When I deploy, this file doesn't contain to jar file.
部署时,此文件不包含jar文件。 So, it start with no data.
因此,它从没有数据开始。
After I run and do sth, it has made data.sav again. 我运行并执行某项操作后,它再次生成了data.sav。 But, I don't see this file in that jar file.
但是,我在那个jar文件中看不到该文件。 I say this because I hope I will overwrite my old data.sav to new data.sav.
我之所以这样说,是因为我希望将原来的data.sav覆盖为新的data.sav。
So, please teach me, how to include "data.sav" to jar file. 因此,请教我如何在jar文件中包含“ data.sav”。 I don't see this option when deploy in Eclipse.
在Eclipse中部署时,我看不到此选项。
Here is the code I want to write file: 这是我要写入文件的代码:
ObjectOutputStream writer = new ObjectOutputStream(
new FileOutputStream("data.sav"));
For more clearer why I do that. 更清楚地说明我为什么这样做。 For example , a game has a list that contain most 10 people highscore.
例如 ,一个游戏的列表包含最多10个人的最高分。 when you first play, no people play,yet, so I must "cheat" by write some people in this highscore list, so my program has some "dummny player" that has played before.
当您第一次玩游戏时,还没有人玩,所以我必须通过在这个高分列表中写一些人来“作弊”,因此我的程序之前有一些“傻瓜播放器” 。
Jars are read-only. 罐子是只读的。 See How can a Java program use files inside the .jar for read and write?
请参阅Java程序如何使用.jar中的文件进行读写? for more details.
更多细节。
Perhaps the high-scores would be better stored using the Preferences
API. 也许可以使用
Preferences
API更好地存储高分。 It takes care of 'where to put the information' automatically. 它会自动处理“将信息放置在何处”。
Failing that, I would have the app. 如果失败,我将拥有该应用程序。 write the dummy scores and any subsequent real scores into a file in a sub-directory of
user.home
. 将虚拟分数和任何后续的真实分数写入到
user.home
子目录中的文件中。 That is a place that should allow read/write to a standard Java app. 那是一个应该允许对标准Java应用程序进行读写的地方。
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