使用 Gradle 的 Java 项目并在 Intellij IDEA 中构建 jar 文件 - 如何？
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Java project with Gradle and building jar file in Intellij IDEA - how to?
提问by Defozo
Is there anywhere a tutorial on how to create Java project with Gradle and then build the jar file?
有没有关于如何使用 Gradle 创建 Java 项目然后构建 jar 文件的教程？
I'm running into various problems with that. When I create Java project and then add Gradle with File -> New -> Module -> Gradle -> ... then I get some errors about Java EE websocket's not available (I'm using Ultimate Edition) but nevermind about that, I managed to create that project by selecting File -> New -> Project... -> Gradle -> ... and now I have my Java project with Gradle working properly (I can debug it in IDE) but when I try to create an artifact (jar file) I get various errors depending on how much I messed up in project structure settings...
我遇到了各种问题。当我创建 Java 项目，然后添加 Gradle with File -> New -> Module -> Gradle -> ... 然后我收到一些关于 Java EE websocket 不可用的错误（我使用的是 Ultimate Edition）但没关系，我通过选择 File -> New -> Project... -> Gradle -> ... 设法创建了该项目，现在我的 Java 项目与 Gradle 正常工作（我可以在 IDE 中调试它）但是当我尝试创建时一个工件（jar 文件）我收到各种错误，具体取决于我在项目结构设置中搞砸了多少......
Buildfile: build.xml does not exist!
Build failed
or
或者
Error: Could not find or load main class Main
I think that this project is such a mess right now that the best solution would be to create another new project and just copy Main.class and Gradle's dependencies into this new project.
我认为这个项目现在一团糟，最好的解决方案是创建另一个新项目，然后将 Main.class 和 Gradle 的依赖项复制到这个新项目中。
But how to make it properly?
但是如何正确制作呢？
回答by Vojtech Ruzicka
- Create new Gradle (not Java) project. Be sure to select Java option in the dialog. Click Next.
- 创建新的 Gradle（不是 Java）项目。请务必在对话框中选择 Java 选项。点击下一步。
- fill GroupId, ArtifactId and version
- 填写 GroupId、ArtifactId 和 version
- Choose your gradle distribution. You can safely use the reccommended option.
- 选择您的 gradle 发行版。您可以安全地使用推荐的选项。
- Choose project name and location
- 选择项目名称和位置
- Click finish
- 点击完成
- You put your java classes to src/main/java folder. When using third party libraries, make sure you declare them as Gradle dependencies.
- 您将 java 类放到 src/main/java 文件夹中。使用第三方库时，请确保将它们声明为 Gradle 依赖项。
- You build your sources using Gradle tab → tasks → build (double click)
- 您可以使用 Gradle 选项卡 → 任务 → 构建（双击）构建源
- You can see the result of the build in the Run tab
- 您可以在 Run 选项卡中看到构建的结果
- In case of error, you can see details by clicking the following button:
- 如果出现错误，您可以通过单击以下按钮查看详细信息：
回答by f.trajkovski
If you are using Intellij you can just open the Gradle plugin (it is on the right side of your IDE) and execute a command: bootRepackage. With this you will have a jar in: your_project_folder/build/libs.
如果您使用的是 Intellij，则只需打开 Gradle 插件（它位于 IDE 的右侧）并执行命令：bootRepackage。有了这个，您将在：your_project_folder/build/libs 中有一个 jar。
回答by Polar
Just encase you run into no main manifest attributeproblem where the executable Jarfile is not running, I do the following.
如果您遇到no main manifest attribute可执行Jar文件未运行的问题，我会执行以下操作。
1: go to your
build.gradleand add the following at the bottom.
1：转到您的
build.gradle并在底部添加以下内容。
jar {
manifest {
attributes 'Main-Class': 'your_package_name.YOUR_MAIN_CLASS'
}
from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
}
- go to
View>Tool Windows>Gradle
- 去
View>Tool Windows>Gradle
- A panel at the right side will be shown, now click the
buildfor more task. Under thebuildtask double click thebuildoption and wait until the task is done.
- 将显示右侧的面板，现在单击以
build获取更多任务。在build任务下双击该build选项并等待任务完成。
- Now, go to your project directory and open the
build>libsand the executableJarfile will be there.
- 现在，转到您的项目目录并打开
build>libs，可执行Jar文件将在那里。
I'm not sure if this is the right way.
No need to accept if it works, hope this help the others.
我不确定这是否是正确的方法。
如果它有效，则无需接受，希望这对其他人有所帮助。
回答by MrNadimi
Step 1: Add these lines on your build.gradle
第 1 步：将这些行添加到您的build.gradle
jar {
from {
configurations.runtime.collect {
it.isDirectory() ? it : zipTree(it)
}
configurations.compile.collect {
it.isDirectory() ? it : zipTree(it)
}
}
manifest {
attributes 'Main-Class': 'YOUR MAIN CLASS'
}
exclude 'META-INF/*.RSA', 'META-INF/*.SF','META-INF/*.DSA'
}
Step 2:cleanand build.
第 2 步：clean和build。
I'm sure it will work , Regards
我相信它会起作用，问候
