将资源(图像、声音位等)嵌入到 Java 项目中，然后使用这些资源 [英] Embedding resources (images, sound bits, etc) into a Java project then use those resources

问题描述

我搜索了一种在 Java 项目中嵌入资源的方法(使用 Eclipse v3.6.0)，然后在控件中使用该嵌入资源(例如，JLabel).我见过从文件系统中引用资源的方法.项目开发完成后，我想将应用程序发布为可执行文件.应该注意的是，这些可执行文件将部署/启动到 Windows、*NIX 和 Linux 平台.

我知道这可以在 Visual Studio 世界中完成，但我非常不熟悉如何在 Java/Eclipse IDE 中执行此操作.作为一个附带问题，我如何让 Eclipse 将项目创建为可执行文件以便它可以启动?

非常感谢任何帮助.

标记

更新 1:

根据BalusC 的回复，我想分享我必须解决的问题的代码.我的课程在Viking.Test"包下，然后我将图像文件放在Viking.Test.Resources"包下.这一切都在 Eclipse 中完成，以将图像导入到项目中.

1. 我通过右键单击导入源的项目 -> 导入 -> 常规/文件系统来导入图像.
2. 选择包含要导入的图像的文件夹
3. 为'进入文件夹'参数选择Project/src/Viking/Test/Resources"
4. 没有更改任何选项并点击完成"

在源文件中，我添加了以下代码以将图像插入JLabel (LblLogo)

试试{ClassLoader classLoader = Thread.currentThread().getContextClassLoader();InputStream 输入 = classLoader.getResourceAsStream("Viking/Test/Resources/MyImage.jpg");图像标志 = ImageIO.read(input);LblLogo = new JLabel( new ImageIcon( logo ) );LblLogo.setBounds(20, 11, 210, 93);getContentPane().add(LblLogo);}捕捉(IOException e){}

解决方案

只需将那些资源放在源/包结构中并使用 ClassLoader#getResource() 或 getResourceAsStream() 通过完全限定的包路径从类路径中以 URL 或 InputStream 的形式获取它们.

ClassLoader classLoader = Thread.currentThread().getContextClassLoader();InputStream input = classLoader.getResourceAsStream("/image.gif");//...

或者如果和当前类在同一个包中，也可以通过如下方式获取:

InputStream input = getClass().getResourceAsStream("image.gif");

<小时><块引用>

作为一个附带问题，我如何让 Eclipse 将项目创建为可执行文件，以便它可以启动.

右键单击 Java 项目 > 导出 > 可运行的 JAR 文件.

I have searched for a method of embedding a resource in a java project (using Eclipse v3.6.0) then using that embedded resource within a control (e.g., JLabel). I have seen methods of referencing resources from the file system. Once the project has been developed I would like to publish the application as an executable. It should be noted these executables will be deployed/launched to Windows, *NIX, and Linux platforms.

I know this can be done in the Visual Studio world, but I'm very unfamiliar how to do this in Java/Eclipse IDE. As a side question, how do I get Eclipse to create the project as a executable so it can be launched?

Any help is greatly appreciated.

Mark

UPDATE 1:

Based upon BalusC's response, I wanted to share the code I have to resolve my problem. My classes are under the package of "Viking.Test" and then I placed the image file under the package "Viking.Test.Resources". This is all done within Eclipse to import the image into the project.

1. I imported the image by right-clicking on the Project -> Import -> General/File System for the import source.
2. Selected the folder which contained the image to import
3. Selected "Project/src/Viking/Test/Resources" for the 'Into folder' parameter
4. Didn't change any of the options and clicked "Finished"

In the source file I added the following code to insert the image into a JLabel (LblLogo)

try
{
  ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
  InputStream input = classLoader.getResourceAsStream(
    "Viking/Test/Resources/MyImage.jpg");
  Image logo = ImageIO.read(input);
  LblLogo = new JLabel( new ImageIcon( logo ) );
  LblLogo.setBounds(20, 11, 210, 93);
  getContentPane().add(LblLogo);
}
catch ( IOException e ) {  }

解决方案

Just put those resources in the source/package structure and use ClassLoader#getResource() or getResourceAsStream() to obtain them as URL or InputStream from the classpath by the full qualified package path.

ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
InputStream input = classLoader.getResourceAsStream("/image.gif");
// ...

Or if it is in the same package as the current class, you can also obtain it as follows:

InputStream input = getClass().getResourceAsStream("image.gif");

---

As a side question, how do I get Eclipse to create the project as a executable so it can be launched.

Rightclick Java Project > Export > Runnable JAR File .

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