在netbeans中执行构建的jar文件时出现问题
我刚刚用netbeans 做了一个游戏。问题是在构建游戏之后。我无法执行 jar 文件并收到异常： 无法加载主类清单属性 Game.jar
做什么？？？
I've just made a game in netbeans. The Problem is that after builting the game. I'm not able to execute the jar file and getting the exception:
Failed to load Main-Class manifest attribute from
Game.jar
What to do???
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要使 JAR 能够自动执行，您必须在清单中包含
Main-Class行。我不是 NetBeans 用户，但它就是这样做的。
创建一个
manifest.mf文件：构建 jar：
jar cmf manifest.mf Game.jar path/to/classes/*.class您现在应该能够双击 JAR 来运行它（假设是 Windows），或者您也可以运行它通过命令行：
java -jar Game.jar当然，您始终可以从命令行运行，无需清单：
java -cp .;Game.jar YourGameFor a JAR to be self-executable, you have to include the
Main-Classline in a manifest.I'm not a NetBeans user, but this is how it's done.
Create a
manifest.mffile:Build the jar:
jar cmf manifest.mf Game.jar path/to/classes/*.classYou should now be able to to double-click on the JAR to run it (assuming Windows), or you can run it via the command line:
java -jar Game.jarOf course, you can always run from the command line without the need for a manifest:
java -cp .;Game.jar YourGameMain-Class 属性后面需要换行才能正确解析。
显示您的
manifest.mf，The Main-Class attribute needs a new line after it in order to be parsed correctly.
Show your
manifest.mf,按照其他人的建议编辑清单文件，或者在 NetBeans 中只需右键单击项目（在侧栏中），选择“属性”、类别“运行”并点击“浏览...” 在主类旁边。
Edit manifest file as proposed by others, or in NetBeans just right-click the project (in sidebar), select Properties, category Run and hit Browse... next to Main Class.