IntelliJ IDEA创建的JAR文件无法运行 [英] JAR files created by IntelliJ IDEA do not run
问题描述
我编写了一个程序，该程序跨越IntelliJ中的几个类，当我在IDE中对其进行测试时，它可以正常工作.但是，每当我按照教程将项目制作为.jar可执行文件时，它都不会运行.
I wrote a program that spans a few classes in IntelliJ and it works fine when I was testing it in the IDE. However, whenever I follow tutorials to make my project into a .jar executable, it does not run.
双击out文件夹中的文件不会运行，并说"Java JAR文件"projectName.jar"无法启动.
The file in the out folder does not run when double-click on it and says "The Java JAR file "projectName.jar" could not be launched.
从终端打开它时，出现错误找不到或加载主类".我使用了"$ java -jar projectName.jar"
When opening it from the terminal, I get the error "Could not find or load main class". I used "$ java -jar projectName.jar "
我遵循了以下步骤:
- 打开项目结构，工件，然后单击(+).
- 在JAR下，来自具有依赖项的模块.
- 使用我的主要方法指向该类，然后单击确定".
- 单击应用"，然后单击确定"退出.
- 然后我关闭项目结构并打开Build，然后构建Artifacts ...
- 然后单击构建".
- 导航至〜/IdeaProjects/projectName/out/artifacts/projectName_jar/projectName.jar
然后我将尝试运行它，但它不会运行.我的项目既有GUI，又可以从命令行运行.当我在Terminal中编译main方法时，它可以正常工作，但是我需要一个JAR文件.我不确定应该在问题中包含什么内容，因为我确定我的代码无关.我也利用Maven，不确定是否相关.在构建JAR之前，我还应该做其他事情还是要添加到项目中吗?
Then I would try to run it but it does not run. My project has both a GUI and can be run from command lines. When I compiled the main method in Terminal, it worked fine, but I need a JAR file. I'm not sure what I should include in the question, since I'm sure that my code is unrelated. I also utilize Maven, not sure if that is related. Are there other things that I should be doing or adding to my project before I build the JAR?
推荐答案
这可能是由于在错误的位置创建清单所导致的.
This can be a result of the Manifest being created in the wrong place.
首先确保它在src/main/resources/META-INF/MANIFEST.MF
(Intellij有时会错误地将其放置在/src/main/java/META-INF/MANIFEST.MF中)
(Intellij sometimes incorrectly places it in /src/main/java/META-INF/MANIFEST.MF)
然后确保该jar在/java或/resources中的 src 目录中寻找META-INF.这意味着:
Then Make sure the jar is looking for META-INF in the src dir NOT in /java OR /resources. This means:
设置文件> 项目结构> 工件> + > JAR kbd >> 从具有依赖性的模块... 中，您的META-INF/MANIFEST.MF目录应该以src结尾.示例:
When you set up File>Project Structure>Artifacts>+>JAR>From modules with dependencies... then your Directory for META-INF/MANIFEST.MF should end at src. Example:
ONLY C:\Users\User\StudioProjects\Project\src\
NOT THE PREPOPULATED C:\Users\User\StudioProjects\Project\src\main\java
如果您的项目结构 jar已经设置好，请将 Manifest File 路径更改为:
If your Project Structure jar is already set up change the Manifest File path to:
C:\Users\User\StudioProjects\Project\src\META-INF\MANIFEST.MF
INSTEAD OF C:\Users\User\StudioProjects\Project\src\main\java\META-INF\MANIFEST.MF
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