java - 没有主要Maifest属性Gradle

Question

我已经阅读了有关此问题的所有其他主题，并应用了所有可以找到的解决方案。没有任何帮助。当我运行gradle.build任务时，我得到一个.jar文件。但是当运行文件时，我得到no main manifest attribute, in DiscordBotJDA-1.0.jarannyone可以提供帮助吗？

非常感谢!

这是我的gradle.buidl文件:

/*
 * This build file was auto generated by running the Gradle 'init' task
 * by 'Timbo' at '7/13/16 2:08 PM' with Gradle 2.9
 *
 * This generated file contains a sample Java project to get you started.
 * For more details take a look at the Java Quickstart chapter in the Gradle
 * user guide available at https://docs.gradle.org/2.9/userguide/tutorial_java_projects.html
 */

// Apply the java plugin to add support for Java
apply plugin: 'java'

apply plugin: 'application'
mainClassName = 'start.StartUp'
version = '1.0'


task fatJar(type: Jar) {
    manifest {
        attributes 'Implementation-Title': 'MCI_Bot',  
            'Implementation-Version': version,
            'Main-Class': 'start.StartUp'
            manifest.attributes("Main-Class": 'start.startUp')
    }
    baseName = project.name + '-all'
    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
    with jar
}

// In this section you declare where to find the dependencies of your project
repositories {
    // Use 'jcenter' for resolving your dependencies.
    // You can declare any Maven/Ivy/file repository here.
    jcenter()
}

// In this section you declare the dependencies for your production and test code
dependencies {
    // The production code uses the SLF4J logging API at compile time
    compile 'org.slf4j:slf4j-api:1.7.13'

    compile 'net.dv8tion:JDA:2.1.3_327'


    // Declare the dependency for your favourite test framework you want to use in your tests.
    // TestNG is also supported by the Gradle Test task. Just change the
    // testCompile dependency to testCompile 'org.testng:testng:6.8.1' and add
    // 'test.useTestNG()' to your build script.
    testCompile 'junit:junit:4.12'
}

我正在使用Eclipse以防万一。

Answer 1

您是否期望您的“fatJar”任务会这样做？仅定义任务并不会将其放入任务执行树中。您必须直接运行任务，或者指定包含任务的任务依赖关系。例如，说另一个任务取决于它。

您最好指定一个“jar”配置块，以配置已经存在的“jar”任务，该任务已经定义了适当的依赖关系。

阅读User Guide以获取配置“jar”任务的示例。

下载Gradle发行版可能更方便，该发行版提供了User Guide的PDF，这可能更易于搜索。