SoFunction
Updated on 2025-04-22

Implementation method of packaging Java programs into EXE files

How to package Java programs into EXE files

1. Prepare Java programs

  • Make sure your Java program is written and runs properly in the development environment.
  • You can write code using any IDE you like (such as Eclipse, IntelliJ IDEA) or text editor.

2. Generate JAR package

Using Eclipse：

  1. Right-click on the project and selectExport。
  2. In the dialog box that pops up, selectJava > JAR file, and clickNext。
  3. Specify the save path and name of the JAR file and check the necessary options (such as whether to include dependencies).
  4. ClickFinishComplete the package.

Using IntelliJ IDEA：

  1. Click on the menu barFile > Project Structure。
  2. Select on the leftArtifacts, click+Add a new JAR file.
  3. After configuring the output path and other options, clickOK。
  4. useBuild > Build ArtifactsGenerate JAR package.

Use the command line：

Open a terminal or command prompt, enter the project directory, and run the following command:

jar cvf

Or, if you need to package the entire package, you can use:

jar cvfM0

3. Select and install the packaging tool

  • Download and installLaunch4jOr other tools that support Java to EXE conversion.
  • Launch4j is a commonly used open source tool that suits most situations.

4. Configure Launch4j

Open the Launch4j application.

existBasic SettingsIn the tab:

  • Input JAR file: Browse and select the JAR file you generated earlier.
  • Output directory: Specifies the save path and name of the .EXE file.
  • Jar app entry point class: Enter the main class of the program (that is, containsmainclass of method).

existOptional SettingsIn the tab:

  • The option to add program icons to make the .EXE file more attractive.
  • Set default JVM parameters, such as memory allocation, etc.
  • Other advanced settings can be adjusted according to specific needs.

5. Generate .EXE file

  • After completing the above configuration, clickBuild exe file(s)The button begins the packaging process.
  • Wait until the program is finished packaging, Launch4j will generate the specified .EXE file.

6. Testing and verification

  • Copy the generated .EXE file to the target computer.
  • Double-click to run the file to observe whether the program starts normally and executes the expected functions.
  • Check for any errors or exceptions, and adjust the configuration as needed to repackage it.

7. Distribute EXE files

  • Once it is confirmed that the .EXE file can run stably in different environments, it can be provided to the end user for use.
  • This standalone executable file can be easily distributed through websites, mails or other channels.

Things to note

  • Dependency management: Make sure that all necessary dependencies (such as third-party libraries) are correctly packaged into the JAR file and that Launch4j is able to recognize and load them.
  • Compatibility issues: If the target computer does not have the corresponding version of Java runtime environment installed, the program may not run normally. Consider using a packaging tool with built-in JRE to solve this problem.
  • Virus scan: Sometimes packaging tools may be mistaken for malware, make sure to download the tools from trusted sources and scan for viruses before distribution.

Through the above steps and precautions, you can successfully convert Java programs into independent .EXE files, improving user experience and simplifying the distribution process.

Summarize

The above is personal experience. I hope you can give you a reference and I hope you can support me more.