java Gradle，错误无法找到或加载主类“test.Main”
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Gradle, error could not find or load main class 'test.Main'
提问by elect
I implemented Gradle on oneof my projects. I use Netbeans 8.02 with the gradle plugin.
我在我的一个项目中实现了 Gradle 。我将 Netbeans 8.02 与 gradle 插件一起使用。
Structure is as it should be, sources are located under jgli/src/main/java/, resources under jgli/src/main/resources/
结构应该是这样，源位于 下jgli/src/main/java/，资源位于jgli/src/main/resources/
The Main class is jgli/src/main/java/test/Main.java
主类是 jgli/src/main/java/test/Main.java
If I run it through the ide, it runs on windows, it crasheson linux. That's why I am trying to run it through the console right now:
如果我通过 ide 运行它，它会在 Windows上运行，它会在 linux上崩溃。这就是为什么我现在试图通过控制台运行它：
java -jar jgli.jar
java -jar jgli.jar
But I keep getting:
但我不断得到：
Error could not find or load main class 'test.Main'
错误无法找到或加载主类“test.Main”
This is my build.gradle
这是我的 build.gradle
apply plugin: 'java'
sourceCompatibility = '1.8'
[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
// NetBeans will automatically add "run" and "debug" tasks relying on the
// "mainClass" property. You may however define the property prior executing
// tasks by passing a "-PmainClass=<QUALIFIED_CLASS_NAME>" argument.
//
// Note however, that you may define your own "run" and "debug" task if you
// prefer. In this case NetBeans will not add these tasks but you may rely on
// your own implementation.
if (!hasProperty('mainClass')) {
ext.mainClass = ''
}
repositories {
mavenCentral()
// You may define additional repositories, or even remove "mavenCentral()".
// Read more about repositories here:
// http://www.gradle.org/docs/current/userguide/dependency_management.html#sec:repositories
}
dependencies {
// TODO: Add dependencies here ...
// You can read more about how to add dependency here:
// http://www.gradle.org/docs/current/userguide/dependency_management.html#sec:how_to_declare_your_dependencies
testCompile group: 'junit', name: 'junit', version: '4.10'
compile 'org.jogamp.jogl:jogl-all-main:2.3.2'
compile 'org.jogamp.jogl:nativewindow-main:2.3.2'
compile 'org.jogamp.jogl:newt-main:2.3.2'
compile 'org.jogamp.gluegen:gluegen-rt-main:2.3.2'
}
jar {
manifest {
attributes 'Main-Class': 'test.Main'
}
}
I just modified the dependeciessection and added the manifest part.
我刚刚修改了该dependecies部分并添加了清单部分。
I tried to add 'test.Main'to the ext.mainClass, but it changed nothing..
我试图添加'test.Main'到 ext.mainClass，但它什么也没改变。
Hereyou can download the jar.
在这里你可以下载jar。
This is my MANIFEST.MF:
这是我的MANIFEST.MF：
Manifest-Version: 1.0
Main-Class: test.Main
Main.class is properly located inside the jar.
Main.java has the package declaration package test;
Main.class 正确位于 jar 内。Main.java 有包声明package test;
Tried also
也试过
apply plugin: 'application'
mainClassName = 'test.Main'
without success..
没有成功..
What am I missing?
我错过了什么？
采纳答案by Stanislav
I've just found your git repositoryand sources of your Main class, seems that it implements some interface, which is provided in your dependencies:
我刚刚找到了您的 git存储库和Main 类的来源，它似乎实现了一些接口，该接口在您的依赖项中提供：
import com.jogamp.newt.event.KeyListener;
import com.jogamp.opengl.util.GLEventListener;
public class Main implements GLEventListener, KeyListener {
...
Which are from some of your dependencies libs:
它们来自您的一些依赖库：
compile 'org.jogamp.jogl:jogl-all-main:2.3.2'
compile 'org.jogamp.jogl:nativewindow-main:2.3.2'
compile 'org.jogamp.jogl:newt-main:2.3.2'
compile 'org.jogamp.gluegen:gluegen-rt-main:2.3.2'
In that case, your dependencies must be in your class path, while you running your Main class. Try to provide -cpoption to point the path, where your dependecies could be found.
在这种情况下，当您运行 Main 类时，您的依赖项必须在您的类路径中。尝试提供-cp指向路径的选项，在那里可以找到您的依赖项。
回答by Beat Jost
Normally you set the main-class in your build file as follows:
通常，您在构建文件中设置主类如下：
mainClassName = 'package.MainClassName'
Do you pass it as Parameter? -> hasProperty Then you had to run your build something like: gradle -PmainClass=MyClass build
你把它作为参数传递吗？-> hasProperty 然后你必须像这样运行你的构建：gradle -PmainClass=MyClass build
