在 Gradle 构建脚本中使用 Java 类 [英] Use Java class in Gradle build script

问题描述

我有一个 Gradle 构建脚本，它必须在 Task 中实例化一个 Java 类并在创建的对象上调用一个方法.目前，我有以下几点:

I have a Gradle build script which has to instantiate a Java class in a Task and call a method on the created object. Currently, I have the following:

apply plugin: 'java'

dependencies {
    compile files("libs/some.library.jar")
}

task A << {

    def obj = new some.library.TestClass()
    obj.doSomething()

}

问题是没有找到 some.library.TestClass() 类.我阅读了这篇文章，了解如何在 Gradle 中使用 Groovy 类，但我需要我的 Java 类来自外部 JAR 文件.如何将 jar 添加到构建源?似乎 dependencies 块没有做我期望它做的事情.谁能给我一个正确方向的提示?

The problem is that the class some.library.TestClass() is not found. I read this article about how to use Groovy classes in Gradle, but I need my Java class to come from an external JAR file. How can I add a jar to the build source? It seems that the dependencies block doesnt do what I expect it to do. Can anyone give me a hint in the right direction?

推荐答案

依赖 compile files("libs/some.library.jar") 添加为项目依赖而不是脚本依赖本身.您需要做的是在脚本的 classpath 范围内添加此依赖项.

The dependency compile files("libs/some.library.jar") is added as a project dependency not as the script dependency itself. What You need to do is to add this dependency in script's classpath scope.

apply plugin: 'java'

buildscript {
   dependencies {
      classpath files("libs/some.library.jar")
   }
}

task A << {
    def obj = new some.library.TestClass()
    obj.doSomething()
}

现在它应该可以工作了.

Now it should work.

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