java 如何在 Launch4j 中使用 Bundle JRE 选项

How do I use the Bundle JRE option in Launch4j

提问by Umdoobby

I have worked with Java for a while now, long enough to start producing my own programs with GUIs and not just little sample programs from a text book that run in Eclipse. I wanted to make my programs more user friendly for the user, specifically the Windows users, by wrapping the executable Jar into an Exe. So I found Launch4j, it seems to do a pretty good job but I have no idea what over half of the options in that program mean (It took me an hour to figure out how to get it to make a functional Exe). I handed that to a fried to test and he returned to me saying that he was getting the no JRE found error. Well I wondered how I can force the end users to have the JRE then I noticed the bundle JRE option in Launch4j. But how do I use it? Do I download the JRE offline installer for Windows and it will run that if it can't find an installed one? Then what about proper version for the system (32-bit v 64-bit). I guess I was thinking I would lead it to this mysterious package containing a JRE and my wrapped program would use that to run. Just can someone please tell me how to use that function, what if anything I have to download, etc.

我已经使用 Java 工作了一段时间，时间已经足够开始使用 GUI 生成我自己的程序，而不仅仅是在 Eclipse 中运行的教科书中的小示例程序。我想让我的程序对用户更友好，特别是 Windows 用户，通过将可执行 Jar 包装到一个 Exe 中。所以我找到了 Launch4j，它似乎做得很好，但我不知道该程序中超过一半的选项是什么意思（我花了一个小时才弄清楚如何让它成为一个功能性的 Exe）。我把它交给了一个油炸的测试，他回到我身边说他得到了没有发现 JRE 的错误。好吧，我想知道如何强制最终用户拥有 JRE，然后我注意到 Launch4j 中的捆绑 JRE 选项。但是我该如何使用它呢？我是否下载了适用于 Windows 的 JRE 离线安装程序，如果可以，它会运行它吗？没有找到已安装的？那么系统的正确版本（32 位 v 64 位）呢？我想我在想我会把它引向这个包含 JRE 的神秘包，我的包装程序将使用它来运行。有人可以告诉我如何使用该功能，如果我必须下载任何东西，等等。

If Launch4j isn't the best program to do this then please recommend something else, I have only just started to get into this, for all I know there is a better wrapper out there.

如果 Launch4j 不是执行此操作的最佳程序，那么请推荐其他程序，我才刚刚开始研究这个，因为我知道那里有更好的包装器。

采纳答案by Jean Waghetti

Your "installation" will need an already installed JRE (with jre/binfolder with java.exeand all the other files) for a "bundled" JRE. You can't pack an Java installer with launch4j.

您的“安装”将需要一个已安装的 JRE（带有jre/bin文件夹java.exe和所有其他文件）用于“捆绑”JRE。您不能使用 launch4j 打包 Java 安装程序。

Doesn't it show to your friend the option to download and install Java if it doesn't find a JRE?

如果找不到 JRE，它不会向您的朋友显示下载和安装 Java 的选项吗？

If you want to install Java alongside with your application, take a look at NSIS.

如果您想将 Java 与您的应用程序一起安装，请查看NSIS。

There's another one: IzPack. It creates multi-plataform installer. But, as it depends on Java, it's the same case of launch4j -> you'll need to download and install Java first. (I didn't use IzPack yet, but when I was looking for a solution, it was one of my alternatives.)

还有另一个：IzPack。它创建了多平台安装程序。但是，由于它依赖于 Java，因此与 launch4j 的情况相同 -> 您需要先下载并安装 Java。（我还没有使用 IzPack，但是当我在寻找解决方案时，它是我的替代方案之一。）

回答by ed22

I have created my own version of the launch4j that allows downloading and installing of required JRE automatically. If you want to give it a try, get it here: https://github.com/maztan/launch4j_auto_jre_download. After running the launch4j, set the options in the "JRE" tab.

我创建了自己的launch4j 版本，允许自动下载和安装所需的JRE。如果您想尝试一下，请在此处获取：https: //github.com/maztan/launch4j_auto_jre_download。运行launch4j后，在“JRE”选项卡中设置选项。